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EP1385411A1 - Device for compacting waste in a vacuum cleaner - Google Patents

Device for compacting waste in a vacuum cleaner

Info

Publication number
EP1385411A1
EP1385411A1 EP02764072A EP02764072A EP1385411A1 EP 1385411 A1 EP1385411 A1 EP 1385411A1 EP 02764072 A EP02764072 A EP 02764072A EP 02764072 A EP02764072 A EP 02764072A EP 1385411 A1 EP1385411 A1 EP 1385411A1
Authority
EP
European Patent Office
Prior art keywords
waste
container
compression device
piston
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02764072A
Other languages
German (de)
French (fr)
Other versions
EP1385411B1 (en
Inventor
Jacky Buron
Alain Soen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP1385411A1 publication Critical patent/EP1385411A1/en
Application granted granted Critical
Publication of EP1385411B1 publication Critical patent/EP1385411B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/106—Dust removal
    • A47L9/108—Dust compression means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/301—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3039—Fluid removing means

Definitions

  • the present invention relates to a device for compacting waste in a vacuum-type waste recovery device.
  • Waste separated in a vacuum cleaner is often stored, either in the filter bag or in a sealed container, depending on the separation device used. It is frequently observed that the accumulated waste occupies a large volume compared to their respective size. It is thus regularly necessary to change or empty the bag or tray when the latter does not appear to have been used to the full.
  • a sealed mounted mechanism comprises a handling member which can slide vertically against the action of a spring.
  • a conical compression element is placed at the end of a vertical arm linked to the handling member. By actuating the handling member vertically, the conical compression element is allowed to settle the dust in the waterproof bag.
  • Document DE 38 25 773 also discloses the use of means for conveying separate waste in a tank type vacuum cleaner. This conveying, towards a sealed bag, is ensured either by a helical screw or by a piston, actuated by a control member.
  • the means used only allow the waste to pass from the tank to the waste recovery bag with a simple packing effect by the screw or the piston, which allows only a small gain in storage volume.
  • These means also allow fine dust to be conveyed to the waterproof bag, but there is always a risk that this fine dust may be discharged into the atmosphere, especially when the device is opened or during compression, or even if the bag is pierced, for example during the routing, by the piston or by the screw, of waste (s) having sharp edges.
  • Document WO 00/54644 presents, for its part, a method for emptying the dust present in a first container of vacuum cleaner, in a second removable container connected in leaktight manner to said first container.
  • the first container comprises, at one of its ends, a filter making it possible to retain part of the dust separated from the suction air.
  • the first container has, in its lower part, a drain orifice closed by a hatch. Before the emptying operation, the first container is hermetically coupled by its emptying orifice to the filling orifice of the second evacuation container. The dust collected in the first container is then transferred to the second container which is removable.
  • Such a process allows the first container to be emptied without causing dust clouds.
  • Several alternative embodiments of the invention are proposed, among which are means for compressing the waste, by a piston carrying the waste separation filter.
  • a variant describes the possibility of adding a caking agent to make small "bricks" of agglomerated dirt. This device makes it possible to compact the aspirated waste while allowing the fine dust to be agglutinated.
  • One of the major drawbacks of this type of embodiment is, during compression, on the evacuation of air in the volume to be compressed.
  • This air is expelled through the filter, which can, on the one hand, lead to rapid degradation of such a filter, and on the other hand, make the operation dependent on the degree of clogging of the filter, in particular as regards concerns the efforts to be made, by the user, to manage to compress the waste.
  • the compression operation may even fail if the filter becomes completely clogged.
  • One of the aims of the present invention is to solve the problems raised by the prior art, by providing simple solutions and a relatively low cost of implementation.
  • the present invention is achieved using a device for compressing waste sucked into a vacuum cleaner and separated from the suction stream, comprising:
  • a container for storing waste of constant section comprising a waste inlet opening
  • a piston capable of sliding in the container, along the walls generated by the constant section over a determined length, said piston being in substantially sealed connection with said walls, characterized in that the device comprises a cup for receiving liquid, said cup being in aeraulic connection on the one hand with the container and on the other hand with the outside by means of a valve.
  • the proposal for a piston device for compressing the aspirated waste allows a significant saving of space by minimizing the volume of the aspirated waste, once compressed.
  • valve makes it possible to evacuate the air during the compression of the waste, while avoiding creating an air leak in the suction circuit during the operation of the vacuum cleaner, by this duct open towards the outside.
  • the cup is located opposite the piston, which simplifies the architecture of the device.
  • the constant section of the container extends substantially vertically, the container being disposed substantially vertically on the cup.
  • the vertical arrangement of the compression device may indeed be preferred to an inclined or horizontal arrangement, although technically possible, by the effect of gravity resulting which results in a more homogeneous distribution of the waste according to the direction of compression.
  • the horizontal arrangement may be desired in order to save space for the device in the waste recovery device.
  • the cup of the waste compression device comprises means for guiding the vertical walls of the container for its precise positioning in said cup.
  • This arrangement makes it possible in particular to maintain the container in the cup during the waste compression operation. It also makes it possible to center the container in the cup or to offset it according to the positions of the opening or openings to best control the evacuation of air from the container during compression by the piston.
  • the guide means consist of vertical walls comprising at least one opening, in connection with at least one opening formed in the container, making it possible to control the evacuation of air from the storage container and to reduce turbulence caused by the passage of air.
  • the air connection between the cup and the container can advantageously be provided by crenellations made in the lower part of the container and / or of the vertical guide wall when the latter is present. This arrangement makes it possible to distribute the evacuation of the air and possibly the liquid, resulting in a more homogeneous compression of the waste.
  • the cup constitutes the bottom of the waste storage container, which, like a stopper, comes to close said container.
  • This architecture is particularly advantageous insofar as the container can therefore be completely open in its lower part which then constitutes a preferred opening for the evacuation of agglomerated waste.
  • This architecture is compatible with the conformation in slots of the lower part of the container and / or of the vertical guide wall.
  • the lower part of the storage container has a horizontal part pierced with orifices.
  • the evacuation of the air during compression is thus distributed over a multitude of orifices in the same compression plane, which allows a significant evacuation of the air, while allowing a homogeneous distribution of the liquid rising from the cup. to the container waste.
  • At least one seal is disposed between the piston and the vertical walls of the container. It is then preferable that the walls of the container do not have a break in curve in order to guarantee sealing by said seal.
  • the container is cylindrical.
  • a preferred variant embodiment of the invention uses a scraper seal to clean the internal surface of the cylinder or of the filter as will be explained later.
  • the piston comprises a control member accessible by the user and connected to the piston through a cover of the container provided for this purpose.
  • the piston control can be actuated mechanically by the user, or the latter can start, by means of a switch, a motor allowing the descent of the piston into the container, a pressure or torque sensor allowing stop the engine when a certain compression ratio is reached or when a certain force opposing the advance of the piston is reached.
  • the piston includes a device for projecting liquid into the container. This feature allows better compaction of waste by promoting its agglomeration.
  • the liquid spraying device comprises a circuit for supplying liquid to regularly distributed orifices and opening onto the face of the piston disposed opposite the waste to be compressed.
  • a circuit for supplying liquid to regularly distributed orifices and opening onto the face of the piston disposed opposite the waste to be compressed Such an arrangement makes it possible to spread the liquid uniformly over the waste to be compacted, while not complicating the general device.
  • the projection of liquid can be controlled by the user or else be triggered automatically by the descent of the piston, for example before compression or during compression.
  • the operations of spraying liquid and compressing waste are automatic.
  • a gelling or solidifying product either over time, or in air, or in heat or in light is associated with the liquid, allowing better agglomeration of the waste.
  • the waste compression device is associated with means for ejecting the waste in the form of agglomerated waste, at the simple request of the user.
  • a device finds its application preferably in waste recovery devices where the separation of waste is carried out by a device of the cyclonic or inertial type. Such a device is then placed in the waste collection circuit.
  • the present invention is not however limited to this single type of application, the walls of the container of the waste compression device being able to consist at least partially of a filter and to constitute a means of separation of waste.
  • the walls consist of a porous plastic support on which is deposited an expanded PTFE film, which makes it possible, not only to offer a large filtration surface, but also, by the PTFE film, to have a surface that can be easily cleaned and on which the waste is difficult to hang.
  • FIG. 1 schematically presents, in a sectional view, the principle of the invention
  • FIG. 2 is a bottom view of the piston isolated from the other constituent parts of the invention.
  • FIG. 3 represents a construction detail of an embodiment of the receiving cup of the waste container
  • FIG. 4a and 4b show details of two other embodiments of the aeraulic connection between the cup and the container
  • - Figure 5 illustrates the implementation of the invention in a vacuum cleaner comprising a device for separating waste by centrifugation
  • FIG. 6 is a diagrammatic view, in section, of the invention according to a variant embodiment using a dust filter
  • FIG. 7 shows another possible implementation of the invention in a vacuum cleaner comprising a device for separating waste by a dust filter
  • FIG. 8 shows alternative embodiments of the present invention.
  • FIG. 1 One of the embodiments of the invention, as illustrated in FIG. 1, comprises a waste container 1 having a cylindrical wall 2. This container also has a side opening 8, through which the sucked waste 9 is introduced, in the direction F 8 , into the container 1. The lower part of the container 1 has at least one opening, as will be explained below. from the description.
  • the container 1 In order to compress the accumulated waste, the container 1 is provided with a piston 12 which can slide along the cylindrical wall 2, against the friction force of at least one circular seal 14 housed in a groove formed on the periphery of the piston 12.
  • an actuating arm 10 of the piston 12 advantageously opens out from the container 1 in its upper part forming a cover. This actuating arm is accessible by the user to compress the accumulated waste.
  • One of the features of the invention resides in the use of a closed cup 6 which is filled with a liquid 16 when it is desired to compress the accumulated waste. By then placing the container 1 in the cup 6 filled with liquid 16, a connection is established between the interior of the container and the liquid through the opening or openings of the container 1.
  • the cup 6 has a duct 13 connected to the outside of the suction circuit or even outside of the device, by a valve 15.
  • the latter allows air circulation only from the inside to the outside of the cup 6. Sealing zones are therefore provided between the cup 6 and the container 2 so that the only possible passage of air from the inside of the container to the outside of the device, at the level of the cup, is produced only through the valve 15.
  • the cup 6 also comprises, in this embodiment, vertical walls 4 for guiding the container 1. These walls may include means for locking the container on the cup 6, for example by a quarter-turn or bayonet-type system .
  • Such a locking system is shown in FIG. 3, the notch 23 allowing the container 1 to be locked, the latter having a lateral lug coming into connection with the said notch when the container is positioned in the cup 6.
  • this locking diagram preferably have at least two notches and at least two pins.
  • Such a locking system can also be used to create an opening in the wall 4 towards the liquid 16, the locking of the container in the notch 23 making it possible, through the resulting opening 21 or a part thereof, to create an air communication between the waste inside the container, and the liquid then contained in the cup 6.
  • the piston 12 comprises a device for spraying liquid inside the container 1.
  • This device comprises a circuit 18 for supplying the liquid terminated by orifices 20 arranged, preferably regularly, on the surface of the piston 12 facing the accumulated waste.
  • the liquid supply circuit 18 can be located inside the actuating arm 10, as shown, or outside.
  • This circuit 18 can optionally be connected to a reservoir containing the liquid to be sprayed, as shown diagrammatically in FIG. 8 by an injection bulb 190.
  • the liquid supply circuit is connected to a pump in order to send the liquid under pressure to the container, making it possible in particular to unclog the orifices liable to become clogged during compression piston on the waste.
  • the container is completely open in its lower part and the connection with the liquid 16 is made, either under the wall 4, or through said wall, for example by taking advantage of the opening generated by the locking system when it is present.
  • Figure 4a shows a possible configuration of the lower part of the cylindrical wall 196 of the waste container by proposing a multitude of openings 197 in any form, such as slots, as illustrated in this figure. These openings are advantageously distributed regularly over the periphery of the wall 196. When guide walls of the container are present at the level of the cup, openings are then formed in said guide walls in order to bring the interior of the air into correspondence cup with the inside of the container.
  • FIG. 4b presents another variant embodiment of the invention, where a horizontal wall 41 completes, in addition to the vertical guide walls 40, the reception of the container 1.
  • This horizontal wall is pierced with a multitude of orifices 22 and is arranged in such a way that a liquid blade 161 is present under this wall.
  • liquid is introduced into the container, for example through the orifices 20 of the piston 12 as mentioned, although all another process is possible.
  • This operation can be carried out manually or automatically, possibly with a control of the liquid level.
  • the piston is then slowly driven downward, in the direction F 2 , either manually or automatically by a motor, or even by using the pressures and depressions delivered by the vacuum cleaner. An additional liquid can possibly be carried out at this stage of the process.
  • the liquid 16 permeates the dust and waste 9 by rising through the orifices (21, 22, 201), in the direction F e , essentially by capillarity.
  • This introduction of liquid through the lower part of the container promotes compacting and the holding between them of compacted waste, in addition to the spraying through the orifices 20 of the piston 12 of a liquid product.
  • the size of the air exhaust openings is judiciously determined. Too small an opening size would make compression difficult, while not promoting the ascent of the liquid in the container. On the contrary, too large an opening size would certainly allow rapid evacuation of the air, but would risk generating too great a rise in liquid and / or too rapid expulsion of the air through the liquid. not allowing good retention of fine dust in the liquid. Depending on the liquid used, its wetting power and its viscosity, the size of the openings is between a few tens of ⁇ m and a few mm.
  • the liquids used are preferably water to which it is possible to add antimicrobial or disinfectant products, such as bleach, to avoid microbial development, or even an acaricide product. We can also make the liquid more or less viscous to adjust for optimum operation of the device.
  • the liquid may contain a gelling or even solidifying product on contact with air or over time or even under the effect of light or heat.
  • a product can be added to the liquid or else introduced beforehand into the container, for example in the form of a powder.
  • FIG. 5 shows a first example of application of the invention in the waste collection circuit separated by a device 30 of the inertial type.
  • a device 30 of the inertial type.
  • the device 30 is connected, on the one hand by its conduit 38, to a suction group, and on the other hand, by its mouth 32, on the surface to be cleaned.
  • the waste is therefore sucked through the mouth 32, and enters a first conduit 34 where it is rotated by a screw 35.
  • the waste therefore takes a rotational movement, according to the arrow indicated in dotted lines. They then enter a chamber 36 comprising the conduit 38 substantially in the axis of the screw 35.
  • Waste, rotated, are then separated from the air stream which continues its travel through the pipe 38 in the direction F 3 8, while the waste falls by inertia and by gravity onto the inclined plane 81 to enter the device compaction 101 in the direction F 8 ⁇ .
  • drive devices can be used to convey the separated waste to the container, for example by a conveyor belt or by a helical screw system or Archimedes screw rotating around its axis at low speed.
  • Figures 6 and 7 show other examples of implementation of the invention in devices comprising a separation of waste by a filter.
  • the compacting device 102 differs from the devices presented above by the presence of a filter 50 in a ring, housed in the cylindrical wall 200.
  • the device is then inserted into the aeraulic suction circuit and the air entering with the waste through the mouth 8 is filtered by the filter 50.
  • a cylindrical tube (not shown) in the upper part of the device makes it possible to convey the filtered air to the suction group.
  • seals 140 Scrape the surface of the filter 50, promoting its unclogging. These seals then preferably have a shape of lip to promote this scraping effect, or even unclogging of the filter 50.
  • FIG. 7 A variant of this arrangement of the filter is presented in FIG. 7 in a top view.
  • the filter 501 is no longer in a crown on the wall of the container but is arranged in an arc of a circle over part of the periphery of the cylindrical wall 201.
  • a duct 502 then routes the filtered air to the suction group.
  • This simplified diagram allows a light structure of the device for easy disassembly when emptying the container.
  • the present invention is not limited to the use of a liquid filter located in the lower part of the waste storage container, but also covers, more generally, any device for compacting waste where the air is expelled, either from the lower part of the container as previously explained, or from the upper part, that is to say through the piston.
  • the air is evacuated through the piston 120 which comprises an aeraulic connection by a duct 11 in relation, on the one hand with the interior of the container 100, and on the other hand with the inside of a cup 170 containing the liquid 16.
  • the cup is closed by a cover from which emerges a tube 130 surmounted by a valve 150 as previously explained in FIG. 1.
  • the present variant is not limited to the arrangement of the liquid filter in the piston, but also includes the configurations where the bubbling filter is located outside the compression or even suction system, but where the evacuation of air during compression is carried out by a tube passing through the piston.
  • This architectural principle can be used in devices comprising a separation of waste by a filter, as presented in FIGS. 6 and 7.
  • the compression step remains substantially similar to what has already been mentioned, although the filling of the cup 170 is independent of the amount of liquid projected onto the waste to be compacted.
  • the principle of the invention therefore consists in using a piston device associated with a projection of liquid in order to compress and compact waste, said compression being carried out in aeraulic connection with a cup containing a liquid in order not only to expel the air from the container, but also to prevent any leakage of particles, and in particular fine particles, during the waste compression operation.
  • This cup when it is located near the accumulated waste, and in particular when it constitutes the bottom of the container, also allows the impregnation of the waste by the ascent of part of the liquid in the container containing the waste, in order to '' standardize the distribution of the liquid within the waste.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention concerns a device for compressing waste sucked up into a vacuum cleaner and separated from a suction flux, comprising: a) a container (1, 100, 101, 102, 103) for storing waste (9) with constant cross-section including an opening (8, 81) for intake of waste (9); b) a piston (12, 120) capable of sliding in the container (1, 100, 101, 102, 103), along the walls (2, 196, 200 201) generated by the constant cross-section over a specific length, said piston (12, 120) being substantially sealingly linked with said walls (2, 196, 200 201). The invention is characterised in that the device comprises a cup (6, 61, 170) for receiving liquid (16), said cup (6, 61, 170) being in ventilating connection with the container(1, 100, 101, 102, 103) and with outside atmosphere via a valve (15, 150).

Description

DISPOSITIF DE COMPACTAGE DES DECHETS DANS UN ASPIRATEUR DEVICE FOR COMPACTING WASTE IN A VACUUM
La présente invention concerne un dispositif de compactage des déchets dans un appareil récupérateur de déchets de type aspirateur.The present invention relates to a device for compacting waste in a vacuum-type waste recovery device.
Les déchets séparés dans un aspirateur sont souvent stockés, soit dans le sac filtrant, soit dans un bac étanche, selon le dispositif de séparation utilisé. Il est fréquemment constaté que les déchets accumulés occupent un volume important comparativement à leur encombrement respectif. Il est ainsi régulièrement nécessaire de changer ou de vider le sac ou le bac alors que ce dernier ne paraît pas avoir été utilisé pleinement.Waste separated in a vacuum cleaner is often stored, either in the filter bag or in a sealed container, depending on the separation device used. It is frequently observed that the accumulated waste occupies a large volume compared to their respective size. It is thus regularly necessary to change or empty the bag or tray when the latter does not appear to have been used to the full.
Par ailleurs, lors d'un changement de sac ou lors du vidage du bac, la poussière fine a tendance à être rejetée si aucun dispositif particulier n'est utilisé pour prévenir un tel rejet dans l'environnement.Furthermore, when changing the bag or when emptying the bin, fine dust tends to be rejected if no special device is used to prevent such a release into the environment.
On connaît, par le document US 2,714,426, un dispositif permettant, dans un aspirateur, de comprimer la poussière dans un sac étanche. Pour ce faire, un mécanisme monté étanche comprend un organe de manipulation qui peut coulisser verticalement contre l'action d'un ressort. Un élément de compression conique est disposé au bout d'un bras vertical lié à l'organe de manipulation. En actionnant l'organe de manipulation verticalement, on permet à l'élément de compression conique de venir tasser la poussière dans le sac étanche.Document US Pat. No. 2,714,426 discloses a device making it possible, in a vacuum cleaner, to compress the dust in a waterproof bag. To do this, a sealed mounted mechanism comprises a handling member which can slide vertically against the action of a spring. A conical compression element is placed at the end of a vertical arm linked to the handling member. By actuating the handling member vertically, the conical compression element is allowed to settle the dust in the waterproof bag.
Ce dispositif permet, certes, de compacter la poussière et donc d'augmenter la longévité des conteneurs utilisés, mais présente un certain nombre d'inconvénients, notamment celui d'un mécanisme complexe et d'un résultat de compression aléatoire. Par ailleurs, la plus grande partie du mécanisme est disposé à l'intérieur du circuit aéraulique, et donc du circuit de poussières, ce qui peut occasionner des dysfonctionnements du dispositif de compactage ou un besoin d'entretien très suivi. On connaît également, par le document DE 38 25 773, l'utilisation de moyens de convoyage des déchets séparés dans un aspirateur de type cuve. Ce convoyage, vers un sac étanche, est assuré, soit par une vis hélicoïdale, soit par un piston, actionnés par un organe de commande. Les moyens utilisés ne permettent cependant que de faire transiter les déchets de la cuve vers le sac récupérateur de déchets avec un simple effet de tassement par la vis ou le piston, ce qui ne permet que de faiblement gagner du volume de stockage. Ces moyens permettent également d'acheminer la poussière fine vers le sac étanche mais il existe toujours un risque que cette poussière fine puisse être rejetée dans l'atmosphère, notamment lors de l'ouverture du dispositif ou bien lors de la compression, voire si le sac vient à se percer, par exemple lors de l'acheminement, par le piston ou par la vis, de déchet(s) présentant des arêtes vives.This device allows, of course, to compact the dust and therefore to increase the longevity of the containers used, but has a number of drawbacks, in particular that of a complex mechanism and a result of random compression. Furthermore, most of the mechanism is arranged inside the air circuit, and therefore of the dust circuit, which can cause malfunctions of the compacting device or a need for very frequent maintenance. Document DE 38 25 773 also discloses the use of means for conveying separate waste in a tank type vacuum cleaner. This conveying, towards a sealed bag, is ensured either by a helical screw or by a piston, actuated by a control member. The means used, however, only allow the waste to pass from the tank to the waste recovery bag with a simple packing effect by the screw or the piston, which allows only a small gain in storage volume. These means also allow fine dust to be conveyed to the waterproof bag, but there is always a risk that this fine dust may be discharged into the atmosphere, especially when the device is opened or during compression, or even if the bag is pierced, for example during the routing, by the piston or by the screw, of waste (s) having sharp edges.
Le document WO 00/54644 présente, quant à lui, un procédé permettant de vider les poussières présentes dans un premier contenant d'aspirateur, dans un deuxième contenant amovible relié de façon étanche audit premier contenant. Cependant l'encombrement et la mécanique associés à ces contenants ne semblent pas compatibles avec l'utilisation de ces dispositifs dans le domaine des aspirateurs ménagers. Dans une variante, le premier contenant comporte, à l'une de ses extrémités, un filtre permettant de retenir une partie de la poussière séparée de l'air d'aspiration. Le premier contenant comporte, en sa partie inférieure, un orifice de vidange obturé par une trappe. Avant l'opération de vidange, le premier contenant est couplé par son orifice de vidange de façon hermétique à l'orifice de remplissage du deuxième contenant d'évacuation. La poussière collectée dans le premier contenant est alors cédée au deuxième contenant qui est amovible. Un tel procédé permet de vider le premier contenant sans provoquer de nuages de poussières. Plusieurs variantes de mise en œuvre de l'invention sont proposées, parmi lesquelles figurent des moyens pour comprimer les déchets, par un piston portant le filtre de séparation des déchets. Une variante décrit la possibilité d'ajouter un agglutinant pour réaliser de petites "briques" de saletés agglomérées. Ce dispositif permet de compacter les déchets aspirés tout en permettant d'agglutiner la poussière fine. Un des inconvénients majeurs de ce type de réalisation repose, lors de la compression, sur l'évacuation de l'air dans le volume à comprimer. Cet air est expulsé au travers du filtre, ce qui peut, d'une part, entraîner une dégradation rapide d'un tel filtre, et d'autre part, rendre l'opération dépendante du degré de colmatage du filtre, notamment en ce qui concerne les efforts à fournir, par l'utilisateur, pour arriver à comprimer les déchets. Il se peut même que l'opération de compression échoue si le filtre vient à se colmater totalement.Document WO 00/54644 presents, for its part, a method for emptying the dust present in a first container of vacuum cleaner, in a second removable container connected in leaktight manner to said first container. However, the space and the mechanics associated with these containers do not seem compatible with the use of these devices in the field of household vacuum cleaners. In a variant, the first container comprises, at one of its ends, a filter making it possible to retain part of the dust separated from the suction air. The first container has, in its lower part, a drain orifice closed by a hatch. Before the emptying operation, the first container is hermetically coupled by its emptying orifice to the filling orifice of the second evacuation container. The dust collected in the first container is then transferred to the second container which is removable. Such a process allows the first container to be emptied without causing dust clouds. Several alternative embodiments of the invention are proposed, among which are means for compressing the waste, by a piston carrying the waste separation filter. A variant describes the possibility of adding a caking agent to make small "bricks" of agglomerated dirt. This device makes it possible to compact the aspirated waste while allowing the fine dust to be agglutinated. One of the major drawbacks of this type of embodiment is, during compression, on the evacuation of air in the volume to be compressed. This air is expelled through the filter, which can, on the one hand, lead to rapid degradation of such a filter, and on the other hand, make the operation dependent on the degree of clogging of the filter, in particular as regards concerns the efforts to be made, by the user, to manage to compress the waste. The compression operation may even fail if the filter becomes completely clogged.
L'un des buts de la présente invention est de résoudre les problèmes soulevés par l'art antérieur, en apportant des solutions simples et d'un coût de mise en œuvre relativement faible.One of the aims of the present invention is to solve the problems raised by the prior art, by providing simple solutions and a relatively low cost of implementation.
La présente invention est atteinte à l'aide d'un dispositif de compression des déchets aspirés dans un aspirateur et séparés du flux d'aspiration, comprenant:The present invention is achieved using a device for compressing waste sucked into a vacuum cleaner and separated from the suction stream, comprising:
- un récipient de stockage des déchets de section constante comportant une ouverture d'admission des déchets,- a container for storing waste of constant section comprising a waste inlet opening,
- un piston pouvant coulisser dans le récipient, le long des parois générées par la section constante sur une longueur déterminée, ledit piston étant en liaison sensiblement étanche avec lesdites parois, caractérisé en ce que le dispositif comporte une coupelle de réception de liquide, ladite coupelle étant en liaison aéraulique d'une part avec le récipient et d'autre part avec l'extérieur par l'intermédiaire d'une soupape.a piston capable of sliding in the container, along the walls generated by the constant section over a determined length, said piston being in substantially sealed connection with said walls, characterized in that the device comprises a cup for receiving liquid, said cup being in aeraulic connection on the one hand with the container and on the other hand with the outside by means of a valve.
La proposition d'un dispositif à piston pour comprimer les déchets aspirés, permet un gain de place important par la minimisation du volume des déchets aspirés, une fois comprimés.The proposal for a piston device for compressing the aspirated waste allows a significant saving of space by minimizing the volume of the aspirated waste, once compressed.
De plus, en proposant une liaison aéraulique entre le récipient de stockage et une coupelle contenant un liquide lors de l'étape de compression, on permet d'évacuer l'air du récipient lors de la compression en retenant les poussières par barbotage à travers le liquide, sans risque de colmatage, ce qui évite de générer des perturbations lors de la compression des déchets. Un tel dispositif permet donc, tout en laissant sortir l'air, d'éviter toute fuite de poussière, et notamment de poussière fine, lorsque l'on comprime les déchets accumulés, tout en proposant un moyen pour éviter le rejet de poussière fine dans l'air par le maniement du récipient lors de son vidage.In addition, by proposing an aeraulic connection between the storage container and a cup containing a liquid during the compression step, it is possible to evacuate the air from the container during compression by retaining the dust by bubbling through the liquid, without risk of clogging, which avoids generating disturbances during the compression of the waste. Such a device therefore makes it possible, while letting the air out, to avoid any leakage of dust, and in particular fine dust, when the accumulated waste is compressed, while proposing a means for avoiding the rejection of fine dust in air by handling the container when emptying.
Par ailleurs, la soupape permet d'évacuer l'air lors de la compression des déchets, tout en évitant de créer une fuite d'air dans le circuit d'aspiration lors du fonctionnement de l'aspirateur, par ce conduit ouvert vers l'extérieur.Furthermore, the valve makes it possible to evacuate the air during the compression of the waste, while avoiding creating an air leak in the suction circuit during the operation of the vacuum cleaner, by this duct open towards the outside.
Selon un mode de réalisation préféré de l'invention, la coupelle est située à l'opposé du piston, ce qui simplifie l'architecture du dispositif.According to a preferred embodiment of the invention, the cup is located opposite the piston, which simplifies the architecture of the device.
Selon un mode de réalisation préféré de l'invention, la section constante du récipient s'étend sensiblement verticalement, le récipient étant disposé sensiblement verticalement sur la coupelle.According to a preferred embodiment of the invention, the constant section of the container extends substantially vertically, the container being disposed substantially vertically on the cup.
La disposition verticale du dispositif de compression peut en effet être préférée à une disposition inclinée ou horizontale, quoique possible techniquement, par l'effet de gravité résultante qui entraîne une répartition plus homogène des déchets selon la direction de compression. La disposition horizontale peut être souhaitée pour un gain de place du dispositif dans l'appareil de récupération des déchets.The vertical arrangement of the compression device may indeed be preferred to an inclined or horizontal arrangement, although technically possible, by the effect of gravity resulting which results in a more homogeneous distribution of the waste according to the direction of compression. The horizontal arrangement may be desired in order to save space for the device in the waste recovery device.
De plus, en disposant alors la coupelle au voisinage des déchets accumulés, on permet également, la récupération du liquide introduit et le mouillage de ces déchets par capillarité, le liquide remontant de la coupelle dans le récipient pour favoriser l'agglomération des déchets entre eux lors de la compression.In addition, by then placing the cup in the vicinity of the accumulated waste, it also allows the recovery of the liquid introduced and the wetting of this waste by capillary action, the liquid rising from the cup into the container to promote agglomeration of the waste between them. during compression.
Avantageusement, la coupelle du dispositif de compression des déchets comporte des moyens de guidage des parois verticales du récipient pour sa mise en place précise dans ladite coupelle.Advantageously, the cup of the waste compression device comprises means for guiding the vertical walls of the container for its precise positioning in said cup.
Cet agencement permet notamment de maintenir le récipient dans la coupelle lors de l'opération de compression des déchets. Il permet également de centrer le récipient dans la coupelle ou de l'excentrer selon les positions de l'ouverture ou des ouvertures afin de contrôler au mieux l'évacuation de l'air du récipient lors de la compression par le piston.This arrangement makes it possible in particular to maintain the container in the cup during the waste compression operation. It also makes it possible to center the container in the cup or to offset it according to the positions of the opening or openings to best control the evacuation of air from the container during compression by the piston.
Selon une variante de réalisation, les moyens de guidage sont constitués de parois verticales comportant au moins une ouverture, en liaison avec au moins une ouverture ménagée dans le récipient, permettant de contrôler l'évacuation de l'air du récipient de stockage et de réduire les turbulences occasionnées par le passage de l'air.According to an alternative embodiment, the guide means consist of vertical walls comprising at least one opening, in connection with at least one opening formed in the container, making it possible to control the evacuation of air from the storage container and to reduce turbulence caused by the passage of air.
La liaison aéraulique entre la coupelle et le récipient peut être avantageusement réalisée par des crénelures ménagées dans la partie inférieure du récipient et/ou de la paroi verticale de guidage lorsque celle-ci est présente. Cette disposition permet de répartir l'évacuation de l'air et éventuellement du liquide, aboutissant à une compression plus homogène des déchets.The air connection between the cup and the container can advantageously be provided by crenellations made in the lower part of the container and / or of the vertical guide wall when the latter is present. This arrangement makes it possible to distribute the evacuation of the air and possibly the liquid, resulting in a more homogeneous compression of the waste.
Selon une architecture préférée de réalisation, la coupelle constitue le fond du récipient de stockage des déchets, qui, telle un bouchon, vient fermer ledit récipient. Cette architecture est particulièrement avantageuse dans la mesure où le récipient peut donc être totalement ouvert en sa partie inférieure qui constitue alors une ouverture privilégiée pour l'évacuation des déchets agglomérés.According to a preferred embodiment architecture, the cup constitutes the bottom of the waste storage container, which, like a stopper, comes to close said container. This architecture is particularly advantageous insofar as the container can therefore be completely open in its lower part which then constitutes a preferred opening for the evacuation of agglomerated waste.
Cette architecture est compatible avec la conformation en créneaux de la partie inférieure du récipient et/ou de la paroi verticale de guidage.This architecture is compatible with the conformation in slots of the lower part of the container and / or of the vertical guide wall.
Selon une autre variante de réalisation de l'invention, la partie inférieure du récipient de stockage comporte une partie horizontale percée d'orifices. L'évacuation de l'air lors de la compression est ainsi répartie sur une multitude d'orifices dans le même plan de compression, ce qui permet une évacuation importante de l'air, tout en permettant une répartition homogène du liquide remontant depuis la coupelle vers les déchets du récipient.According to another alternative embodiment of the invention, the lower part of the storage container has a horizontal part pierced with orifices. The evacuation of the air during compression is thus distributed over a multitude of orifices in the same compression plane, which allows a significant evacuation of the air, while allowing a homogeneous distribution of the liquid rising from the cup. to the container waste.
Selon une mise en œuvre préférée de l'invention, au moins un joint d'étanchéité est disposé entre le piston et les parois verticales du récipient. Il est alors préférable que les parois du récipient ne présentent pas de rupture de courbe afin de garantir l'étanchéité par ledit joint. Avantageusement, le récipient est cylindrique. Une variante préférée de réalisation de l'invention utilise un joint d'étanchéité racleur pour nettoyer la surface interne du cylindre ou du filtre comme il sera expliqué ultérieurement.According to a preferred implementation of the invention, at least one seal is disposed between the piston and the vertical walls of the container. It is then preferable that the walls of the container do not have a break in curve in order to guarantee sealing by said seal. Advantageously, the container is cylindrical. A preferred variant embodiment of the invention uses a scraper seal to clean the internal surface of the cylinder or of the filter as will be explained later.
Selon l'invention, le piston comporte un organe de commande accessible par l'utilisateur et relié au piston au travers d'un couvercle du récipient ménagé à cet effet. La commande du piston peut être actionnée mécaniquement par l'utilisateur, ou bien ce dernier peut mettre en marche, par l'intermédiaire d'un interrupteur, un moteur permettant la descente du piston dans le récipient, un capteur de pression ou de couple permettant d'arrêter le moteur lorsqu'un certain taux de compression est atteint ou lorsqu'une certaine force d'opposition à l'avancée du piston est atteinte.According to the invention, the piston comprises a control member accessible by the user and connected to the piston through a cover of the container provided for this purpose. The piston control can be actuated mechanically by the user, or the latter can start, by means of a switch, a motor allowing the descent of the piston into the container, a pressure or torque sensor allowing stop the engine when a certain compression ratio is reached or when a certain force opposing the advance of the piston is reached.
Avantageusement, le piston comporte un dispositif de projection de liquide dans le récipient. Cette particularité permet un meilleur compactage des déchets en favorisant leur agglomération.Advantageously, the piston includes a device for projecting liquid into the container. This feature allows better compaction of waste by promoting its agglomeration.
Préférentiellement, le dispositif de projection de liquide comporte un circuit d'amenée de liquide jusqu'à des orifices régulièrement répartis et débouchant sur la face du piston disposée en regard des déchets à comprimer. Une telle disposition permet de répandre uniformément le liquide sur les déchets à compacter, tout en ne compliquant pas le dispositif général. La projection de liquide peut être commandée par l'utilisateur ou bien être déclenchée automatiquement par la descente du piston par exemple préalablement à la compression ou lors de la compression.Preferably, the liquid spraying device comprises a circuit for supplying liquid to regularly distributed orifices and opening onto the face of the piston disposed opposite the waste to be compressed. Such an arrangement makes it possible to spread the liquid uniformly over the waste to be compacted, while not complicating the general device. The projection of liquid can be controlled by the user or else be triggered automatically by the descent of the piston, for example before compression or during compression.
Dans une variante de réalisation, les opérations de projection de liquide et de compression des déchets sont automatiques.In an alternative embodiment, the operations of spraying liquid and compressing waste are automatic.
Avantageusement, un produit gélifiant ou se solidifiant soit avec le temps, soit à l'air, soit à la chaleur ou à la lumière est associé au liquide, permettant une meilleure agglomération des déchets.Advantageously, a gelling or solidifying product either over time, or in air, or in heat or in light is associated with the liquid, allowing better agglomeration of the waste.
Avantageusement, le dispositif de compression des déchets est associé à des moyens d'éjection des déchets sous la forme de déchets agglomérés, sur simple demande de l'utilisateur. Un tel dispositif trouve son application préférentiellement dans des appareils de récupération de déchets où la séparation des déchets est réalisée par un dispositif de type cyclonique ou inertiel. Un tel dispositif est alors disposé dans le circuit de collecte des déchets. La présente invention n'est cependant pas limitée à ce seul type d'application, les parois du récipient du dispositif de compression des déchets pouvant être constituées au moins partiellement d'un filtre et constituer un moyen de séparation des déchets.Advantageously, the waste compression device is associated with means for ejecting the waste in the form of agglomerated waste, at the simple request of the user. Such a device finds its application preferably in waste recovery devices where the separation of waste is carried out by a device of the cyclonic or inertial type. Such a device is then placed in the waste collection circuit. The present invention is not however limited to this single type of application, the walls of the container of the waste compression device being able to consist at least partially of a filter and to constitute a means of separation of waste.
Avantageusement selon cette configuration, les parois sont constituées d'un support en plastique poreux sur lequel est déposé un film PTFE expansé, ce qui permet, non seulement d'offrir une surface importante de filtration, mais également, par le film PTFE, d'avoir une surface pouvant être nettoyée facilement et sur laquelle les déchets ne s'accrochent que difficilement.Advantageously according to this configuration, the walls consist of a porous plastic support on which is deposited an expanded PTFE film, which makes it possible, not only to offer a large filtration surface, but also, by the PTFE film, to have a surface that can be easily cleaned and on which the waste is difficult to hang.
La présente invention sera comme illustrée par la description qui va suivre, faisant référence aux dessins annexés, donnés à titre d'exemples non limitatifs, parmi lesquels :The present invention will be as illustrated by the description which follows, referring to the appended drawings, given by way of nonlimiting examples, among which:
- la figure 1 présente schématiquement, dans une vue en coupe, le principe de l'invention,FIG. 1 schematically presents, in a sectional view, the principle of the invention,
- la figure 2 est une vue de dessous du piston isolé des autres parties constitutives de l'invention,FIG. 2 is a bottom view of the piston isolated from the other constituent parts of the invention,
- la figure 3 représente un détail de construction d'un mode de réalisation de la coupelle récepteur du récipient à déchets,FIG. 3 represents a construction detail of an embodiment of the receiving cup of the waste container,
- les figures 4a et 4b présentent des détails de deux autres modes de réalisation de la liaison aéraulique entre la coupelle et le récipient, - la figure 5 illustre la mise en œuvre de l'invention dans un aspirateur comportant un dispositif de séparation des déchets par centrifugation,- Figures 4a and 4b show details of two other embodiments of the aeraulic connection between the cup and the container, - Figure 5 illustrates the implementation of the invention in a vacuum cleaner comprising a device for separating waste by centrifugation
- la figure 6 est une vue schématique, en coupe, de l'invention selon une vaπante de réalisation utilisant un filtre à poussières,FIG. 6 is a diagrammatic view, in section, of the invention according to a variant embodiment using a dust filter,
- la figure 7 montre une autre mise en œuvre possible de l'invention dans un aspirateur comportant un dispositif de séparation des déchets par un filtre à poussières, - la figure 8 présente des variantes de principe de réalisation de la présente invention.FIG. 7 shows another possible implementation of the invention in a vacuum cleaner comprising a device for separating waste by a dust filter, - Figure 8 shows alternative embodiments of the present invention.
Une des formes de réalisation de l'invention, telle qu'illustrée figure 1 , comprend un récipient à déchets 1 comportant une paroi 2 cylindrique. Ce récipient comporte également une ouverture latérale 8, par laquelle les déchets 9 aspirés sont introduits, selon la direction F8, dans le récipient 1. La partie inférieure du récipient 1 comporte au moins une ouverture, tel qu'il sera expliqué par la suite de la description.One of the embodiments of the invention, as illustrated in FIG. 1, comprises a waste container 1 having a cylindrical wall 2. This container also has a side opening 8, through which the sucked waste 9 is introduced, in the direction F 8 , into the container 1. The lower part of the container 1 has at least one opening, as will be explained below. from the description.
Afin de comprimer les déchets accumulés, le récipient 1 est doté d'un piston 12 pouvant coulisser le long de la paroi cylindrique 2, contre la force de frottement d'au moins un joint 14 circulaire logé dans une rainure ménagée sur la périphérie du piston 12.In order to compress the accumulated waste, the container 1 is provided with a piston 12 which can slide along the cylindrical wall 2, against the friction force of at least one circular seal 14 housed in a groove formed on the periphery of the piston 12.
Selon une forme simple de réalisation de l'invention, un bras d'actionnement 10 du piston 12 débouche avantageusement du récipient 1 dans sa partie supérieure formant couvercle. Ce bras d'actionnement est accessible par l'utilisateur pour réaliser la compression des déchets accumulés.According to a simple embodiment of the invention, an actuating arm 10 of the piston 12 advantageously opens out from the container 1 in its upper part forming a cover. This actuating arm is accessible by the user to compress the accumulated waste.
Une des particularités de l'invention réside dans l'utilisation d'une coupelle 6 fermée qui est remplie d'un liquide 16 lorsque l'on désire comprimer les déchets accumulés. En disposant alors le récipient 1 dans la coupelle 6 remplit de liquide 16, on établit, par l'ouverture ou les ouvertures du récipient 1 , une liaison entre l'intérieur du récipient et le liquide.One of the features of the invention resides in the use of a closed cup 6 which is filled with a liquid 16 when it is desired to compress the accumulated waste. By then placing the container 1 in the cup 6 filled with liquid 16, a connection is established between the interior of the container and the liquid through the opening or openings of the container 1.
Selon l'exemple illustré à la figure 1 , la coupelle 6 comporte un conduit 13 relié à l'extérieur du circuit d'aspiration voire à l'extérieur de l'appareil, par une soupape 15. Cette dernière permet une circulation d'air uniquement de l'intérieur vers l'extérieur de la coupelle 6. Des zones d'étanchéité sont donc prévues entre la coupelle 6 et le récipient 2 pour que le seul passage de l'air possible de l'intérieur du récipient vers l'extérieur du dispositif, au niveau de la coupelle, ne soit réalisé qu'au travers de la soupape 15. La coupelle 6 comporte par ailleurs, sur cet exemple de réalisation, des parois verticales 4 de guidage du récipient 1. Ces parois peuvent comporter des moyens de verrouillage du récipient sur la coupelle 6, par exemple par un système quart de tour ou de type baïonnette. Un tel système de verrouillage est présenté figure 3, l'échancrure 23 permettant le verrouillage du récipient 1 , ce dernier possédant un ergot latéral entrant en liaison avec ladite échancrure lors du positionnement du récipient dans la coupelle 6. Selon ce schéma de verrouillage, on disposera, préférentiellement, au moins deux échancrures et au moins deux ergots.According to the example illustrated in Figure 1, the cup 6 has a duct 13 connected to the outside of the suction circuit or even outside of the device, by a valve 15. The latter allows air circulation only from the inside to the outside of the cup 6. Sealing zones are therefore provided between the cup 6 and the container 2 so that the only possible passage of air from the inside of the container to the outside of the device, at the level of the cup, is produced only through the valve 15. The cup 6 also comprises, in this embodiment, vertical walls 4 for guiding the container 1. These walls may include means for locking the container on the cup 6, for example by a quarter-turn or bayonet-type system . Such a locking system is shown in FIG. 3, the notch 23 allowing the container 1 to be locked, the latter having a lateral lug coming into connection with the said notch when the container is positioned in the cup 6. According to this locking diagram, preferably have at least two notches and at least two pins.
Un tel système de verrouillage peut également être utilisé pour créer une ouverture, dans la paroi 4, vers le liquide 16, le verrouillage du récipient dans l'échancrure 23 permettant, par l'ouverture 21 résultante ou une partie de celle- ci, de créer une communication aéraulique entre les déchets à l'intérieur du récipient, et le liquide alors contenu dans la coupelle 6.Such a locking system can also be used to create an opening in the wall 4 towards the liquid 16, the locking of the container in the notch 23 making it possible, through the resulting opening 21 or a part thereof, to create an air communication between the waste inside the container, and the liquid then contained in the cup 6.
Selon une caractéristique additionnelle de la présente invention, le piston 12 comporte un dispositif de projection de liquide à l'intérieur du récipient 1. Ce dispositif, en référence aux figures 1 et 2, comporte un circuit 18 d'amenée du liquide terminé par des orifices 20 disposés, préférentiellement de façon régulière, sur la surface du piston 12 faisant face aux déchets accumulés. Le circuit 18 d'amenée du liquide peut être situé à l'intérieur du bras d'actionnement 10, tel que représenté, ou bien à l'extérieur.According to an additional characteristic of the present invention, the piston 12 comprises a device for spraying liquid inside the container 1. This device, with reference to FIGS. 1 and 2, comprises a circuit 18 for supplying the liquid terminated by orifices 20 arranged, preferably regularly, on the surface of the piston 12 facing the accumulated waste. The liquid supply circuit 18 can be located inside the actuating arm 10, as shown, or outside.
Ce circuit 18 peut éventuellement être relié à un réservoir contenant le liquide à projeter, tel qu'il est schématiquement représenté figure 8 par une poire d'injection 190.This circuit 18 can optionally be connected to a reservoir containing the liquid to be sprayed, as shown diagrammatically in FIG. 8 by an injection bulb 190.
Dans une variante améliorée de l'invention, le circuit d'amenée du liquide est relié à une pompe afin d'envoyer, sous pression le liquide dans le récipient, permettant notamment d'éventuellement déboucher les orifices susceptibles de se colmater lors de la compression du piston sur les déchets.In an improved variant of the invention, the liquid supply circuit is connected to a pump in order to send the liquid under pressure to the container, making it possible in particular to unclog the orifices liable to become clogged during compression piston on the waste.
Selon une mise en œuvre simplifiée de l'invention, le récipient est totalement ouvert dans sa partie inférieure et la liaison avec le liquide 16 est réalisée, soit sous la paroi 4, soit au travers de ladite paroi, par exemple en profitant de l'ouverture générée par le système de verrouillage lorsqu'il est présent.According to a simplified implementation of the invention, the container is completely open in its lower part and the connection with the liquid 16 is made, either under the wall 4, or through said wall, for example by taking advantage of the opening generated by the locking system when it is present.
La figure 4a présente une configuration possible de la partie inférieure de la paroi cylindrique 196 du récipient à déchets en proposant une multitude d'ouvertures 197 sous une forme quelconque, telle des créneaux, comme illustré à la présente figure. Ces ouvertures sont avantageusement réparties régulièrement sur la périphérie de la paroi 196. Lorsque des parois de guidage du récipient sont présentes au niveau de la coupelle, des ouvertures sont alors ménagées dans lesdites parois de guidage afin de mettre en correspondance aéraulique l'intérieur de la coupelle avec l'intérieur du récipient.Figure 4a shows a possible configuration of the lower part of the cylindrical wall 196 of the waste container by proposing a multitude of openings 197 in any form, such as slots, as illustrated in this figure. These openings are advantageously distributed regularly over the periphery of the wall 196. When guide walls of the container are present at the level of the cup, openings are then formed in said guide walls in order to bring the interior of the air into correspondence cup with the inside of the container.
La figure 4b présente une autre variante de mise en œuvre de l'invention, où une paroi horizontale 41 complète, en plus des parois 40 verticales de guidage, l'accueil du récipient 1. Cette paroi horizontale est percée d'une multitude d'orifices 22 et est disposée de telle manière qu'une lame de liquide 161 soit présente sous cette paroi.FIG. 4b presents another variant embodiment of the invention, where a horizontal wall 41 completes, in addition to the vertical guide walls 40, the reception of the container 1. This horizontal wall is pierced with a multitude of orifices 22 and is arranged in such a way that a liquid blade 161 is present under this wall.
Selon le mode opératoire, en référence aux figures 1 à 4, lorsque suffisamment de poussières se sont accumulées dans le récipient 1 , du liquide est introduit dans le récipient, par exemple au travers des orifices 20 du piston 12 tel que mentionné, bien que tout autre procédé soit possible. Cette opération peut être effectuée manuellement ou automatiquement, avec éventuellement un contrôle du niveau de liquide.According to the operating mode, with reference to FIGS. 1 to 4, when sufficient dust has accumulated in the container 1, liquid is introduced into the container, for example through the orifices 20 of the piston 12 as mentioned, although all another process is possible. This operation can be carried out manually or automatically, possibly with a control of the liquid level.
Lorsque suffisamment de liquide a été introduit dans le récipient, au point qu'un surplus de liquide se trouve dans la coupelle (6, 61), le piston est alors lentement entraîné vers le bas, selon la direction F2, soit manuellement, soit automatiquement par un moteur, voire en utilisant les pressions et dépressions délivrées par l'aspirateur. Un complément de liquide peut être éventuellement effectué à cette étape du procédé.When enough liquid has been introduced into the container, to the point that there is a surplus of liquid in the cup (6, 61), the piston is then slowly driven downward, in the direction F 2 , either manually or automatically by a motor, or even by using the pressures and depressions delivered by the vacuum cleaner. An additional liquid can possibly be carried out at this stage of the process.
Lors de la compression, une quantité importante d'air est expulsée par les orifices (21 , 22, 201), selon la direction Fa illustrée figure 4b, en entraînant les plus fines particules avec lui. Cet air barbote alors à travers le liquide 16 se trouvant dans la coupelle (6, 61) . Grâce au faible débit de l'air au travers des orifices (21 , 22, 201), la majorité des particules est retenue dans le liquide 16. Le liquide 16 peut contenir un agent mouillant pour améliorer l'efficacité du filtre ainsi constitué. Des chicanes favorisant un brassage de l'air dans le liquide peuvent être placées sur le parcours de l'air. L'air épuré est ensuite expulsé par la soupape 15 du tube 13.During compression, a large amount of air is expelled through the orifices (21, 22, 201), in the direction F a illustrated in Figure 4b, carrying the finest particles with it. This air then bubbled through the liquid 16 found in the cup (6, 61). Thanks to the low air flow rate through the orifices (21, 22, 201), the majority of the particles are retained in the liquid 16. The liquid 16 may contain a wetting agent to improve the efficiency of the filter thus formed. Baffles promoting air mixing in the liquid can be placed on the air path. The purified air is then expelled by the valve 15 from the tube 13.
Dans le même temps, le liquide 16 imprègne les poussières et déchets 9 par remontée au travers des orifices (21 , 22, 201), selon la direction Fe, essentiellement par capillarité. Cette introduction de liquide par la partie inférieure du récipient favorise le compactage et la tenue entre eux des déchets compactés, en complément de la pulvérisation par les orifices 20 du piston 12 d'un produit liquide.At the same time, the liquid 16 permeates the dust and waste 9 by rising through the orifices (21, 22, 201), in the direction F e , essentially by capillarity. This introduction of liquid through the lower part of the container promotes compacting and the holding between them of compacted waste, in addition to the spraying through the orifices 20 of the piston 12 of a liquid product.
La taille des ouvertures d'évacuation de l'air est judicieusement déterminée. Une taille d'ouvertures trop petite rendrait difficile la compression, tout en ne favorisant pas la remontée du liquide dans le récipient. Au contraire, une taille d'ouvertures trop importante, permettrait, certes, une évacuation rapide de l'air, mais risquerait d'engendrer une remontée trop importante de liquide et/ou une expulsion trop rapide de l'air à travers le liquide ne permettant pas une bonne rétention des poussières fines dans le liquide. Selon le liquide utilisé, son pouvoir mouillant et sa viscosité, la taille des ouvertures est comprise entre quelques dizaines de μm et quelques mm.The size of the air exhaust openings is judiciously determined. Too small an opening size would make compression difficult, while not promoting the ascent of the liquid in the container. On the contrary, too large an opening size would certainly allow rapid evacuation of the air, but would risk generating too great a rise in liquid and / or too rapid expulsion of the air through the liquid. not allowing good retention of fine dust in the liquid. Depending on the liquid used, its wetting power and its viscosity, the size of the openings is between a few tens of μm and a few mm.
Lorsque la compression est terminée, c'est-à-dire par exemple, lorsque le piston rencontre une force d'opposition déterminée, il suffit de retirer l'agrégat de poussières ainsi formé, soit à l'aide du piston, par une pression supplémentaire sur ce dernier, après avoir retiré la coupelle, soit en retirant le piston et en faisant ressortir l'agrégat 17 formé par l'orifice laissé ouvert par l'absence du piston. Le liquide contenu dans la coupelle (6, 61) peut être également jeté et la coupelle nettoyée remise en place.When the compression is complete, that is to say for example, when the piston encounters a determined opposing force, it suffices to remove the dust aggregate thus formed, either using the piston, by pressing additional on the latter, after removing the cup, either by removing the piston and bringing out the aggregate 17 formed by the orifice left open by the absence of the piston. The liquid contained in the cup (6, 61) can also be discarded and the cleaned cup replaced.
Les liquides utilisés sont préférentiellement de l'eau à laquelle il est possible d'ajouter des produits anti-microbiens ou désinfectants, tel de l'eau de javel, pour éviter le développement microbien, voire un produit acaricide. On peut également rendre le liquide plus ou moins visqueux pour ajuster un fonctionnement optimum du dispositif.The liquids used are preferably water to which it is possible to add antimicrobial or disinfectant products, such as bleach, to avoid microbial development, or even an acaricide product. We can also make the liquid more or less viscous to adjust for optimum operation of the device.
L'avantage d'utiliser un liquide, voire de l'eau, pour filtrer l'air expulsé par la compression est que l'eau est disponible facilement et ne nécessite pas le remplacement ou le nettoyage délicat d'un filtre.The advantage of using a liquid, or even water, to filter the air expelled by compression is that water is readily available and does not require the replacement or delicate cleaning of a filter.
Le liquide peut contenir un produit gélifiant, voire se solidifiant au contact de l'air ou avec le temps ou même sous l'effet de la lumière ou de la chaleur. Un tel produit peut être mis en addition dans le liquide ou bien introduit préalablement au liquide dans le récipient, par exemple sous la forme d'une poudre.The liquid may contain a gelling or even solidifying product on contact with air or over time or even under the effect of light or heat. Such a product can be added to the liquid or else introduced beforehand into the container, for example in the form of a powder.
La figure 5 montre un premier exemple d'application de l'invention dans le circuit de collecte des déchets séparés par un dispositif 30 de type inertiel. Un tel dispositif a déjà été décrit, notamment dans la demande FR 2 778 546. Pour résumer, le dispositif 30 est relié, d'une part par son conduit 38, à un groupe d'aspiration, et d'autre part, par son embouchure 32, à la surface à nettoyer. Les déchets sont donc aspirés par l'embouchure 32, et pénètrent dans un premier conduit 34 où ils sont mis en rotation par une vis 35. Les déchets prennent donc un mouvement de rotation, selon la flèche indiquée en pointillés. Ils pénètrent ensuite dans une chambre 36 comportant le conduit 38 sensiblement dans l'axe de la vis 35.FIG. 5 shows a first example of application of the invention in the waste collection circuit separated by a device 30 of the inertial type. Such a device has already been described, in particular in application FR 2 778 546. To summarize, the device 30 is connected, on the one hand by its conduit 38, to a suction group, and on the other hand, by its mouth 32, on the surface to be cleaned. The waste is therefore sucked through the mouth 32, and enters a first conduit 34 where it is rotated by a screw 35. The waste therefore takes a rotational movement, according to the arrow indicated in dotted lines. They then enter a chamber 36 comprising the conduit 38 substantially in the axis of the screw 35.
Les déchets, mis en rotation, sont alors séparés du flux d'air qui poursuit sa course par le conduit 38 selon la direction F38, tandis que les déchets tombent par inertie et par gravité sur le plan incliné 81 pour pénétrer dans le dispositif de compactage 101 selon la direction F8ι.Waste, rotated, are then separated from the air stream which continues its travel through the pipe 38 in the direction F 3 8, while the waste falls by inertia and by gravity onto the inclined plane 81 to enter the device compaction 101 in the direction F 8 ι.
Dans le cadre de la présente invention, des dispositifs d'entraînement peuvent être utilisés pour acheminer les déchets séparés vers le récipient, par exemple par un tapis roulant ou par un système de vis hélicoïdale ou vis d'Archimède tournant autour de son axe à faible vitesse. Les figures 6 et 7 présentent d'autres exemples de mise en œuvre de l'invention dans des appareils comportant une séparation des déchets par un filtre.In the context of the present invention, drive devices can be used to convey the separated waste to the container, for example by a conveyor belt or by a helical screw system or Archimedes screw rotating around its axis at low speed. Figures 6 and 7 show other examples of implementation of the invention in devices comprising a separation of waste by a filter.
Ainsi, dans la figure 6, le dispositif 102 de compactage se différencie des dispositifs présentés précédemment par la présence d'un filtre 50 en couronne, logé dans la paroi cylindrique 200. Le dispositif est alors inséré dans le circuit aéraulique d'aspiration et l'air pénétrant avec les déchets par l'embouchure 8 est filtré par le filtre 50. Une tubulure cylindrique (non représentée) dans la partie supérieure du dispositif permet d'acheminer l'air filtré vers le groupe d'aspiration.Thus, in FIG. 6, the compacting device 102 differs from the devices presented above by the presence of a filter 50 in a ring, housed in the cylindrical wall 200. The device is then inserted into the aeraulic suction circuit and the air entering with the waste through the mouth 8 is filtered by the filter 50. A cylindrical tube (not shown) in the upper part of the device makes it possible to convey the filtered air to the suction group.
Lors de la descente du piston, les joints 140 viennent racler la surface du filtre 50, favorisant son décolmatage. Ces joints présentent alors préférentiellement une forme de lèvre pour favoriser cet effet de raclage, voire décolmatage du filtre 50.When the piston descends, the seals 140 scrape the surface of the filter 50, promoting its unclogging. These seals then preferably have a shape of lip to promote this scraping effect, or even unclogging of the filter 50.
Une variante de cette disposition du filtre est présentée figure 7 dans une vue de dessus. Au sein du dispositif 103, le filtre 501 n'est plus en couronne sur la paroi du récipient mais est agencé selon un arc de cercle sur une partie de la périphérie de la paroi cylindrique 201. Un conduit 502 achemine alors l'air filtré vers le groupe d'aspiration. Ce schéma simplifié permet une structure allégée du dispositif pour un démontage facile lors du vidage du récipient.A variant of this arrangement of the filter is presented in FIG. 7 in a top view. Within the device 103, the filter 501 is no longer in a crown on the wall of the container but is arranged in an arc of a circle over part of the periphery of the cylindrical wall 201. A duct 502 then routes the filtered air to the suction group. This simplified diagram allows a light structure of the device for easy disassembly when emptying the container.
La présente invention n'est pas limitée à l'utilisation d'un filtre à liquide situé en partie basse du récipient de stockage des déchets, mais couvre également, d'une manière plus générale tout dispositif de compactage des déchets où l'air est expulsé, soit par la partie inférieure du récipient tel qu'il a été précédemment expliqué, soit par la partie supérieure, c'est à dire au travers du piston.The present invention is not limited to the use of a liquid filter located in the lower part of the waste storage container, but also covers, more generally, any device for compacting waste where the air is expelled, either from the lower part of the container as previously explained, or from the upper part, that is to say through the piston.
Ainsi, dans la variante de réalisation présentée figure 8, le récipient à déchetsThus, in the embodiment shown in Figure 8, the waste container
100 ne comporte pas d'ouvertures en sa partie inférieure pour évacuer l'air lors de l'opération de compression des déchets accumulés. Il est donc hermétiquement clos en sa partie inférieure, par un fond amovible ou inamovible. Le présent exemple montre un fond 140 amovible permettant, en le retirant de faciliter l'évacuation des déchets compactés.100 does not have any openings in its lower part to evacuate the air during the compression operation of the accumulated waste. It is therefore hermetically sealed in its lower part, by a removable bottom or irremovable. This example shows a removable bottom 140 allowing, by removing it to facilitate the evacuation of the compacted waste.
Selon cette configuration, l'évacuation de l'air est réalisée au travers du piston 120 qui comporte une liaison aéraulique par un conduit 11 en relation, d'une part avec l'intérieur du récipient 100, et d'autre part avec l'intérieur d'une coupelle 170 contenant le liquide 16. La coupelle est fermée par un couvercle duquel émerge une tubulure 130 surmontée d'une soupape 150 telle que précédemment expliqué à la figure 1.According to this configuration, the air is evacuated through the piston 120 which comprises an aeraulic connection by a duct 11 in relation, on the one hand with the interior of the container 100, and on the other hand with the inside of a cup 170 containing the liquid 16. The cup is closed by a cover from which emerges a tube 130 surmounted by a valve 150 as previously explained in FIG. 1.
La présente variante n'est pas limitée à la disposition du filtre à liquide dans le piston, mais englobe également les configurations où le filtre à barbotage est localisé hors du système de compression voire d'aspiration, mais où l'évacuation d'air lors de la compression est réalisée par une tubulure traversant le piston.The present variant is not limited to the arrangement of the liquid filter in the piston, but also includes the configurations where the bubbling filter is located outside the compression or even suction system, but where the evacuation of air during compression is carried out by a tube passing through the piston.
Ce principe d'architecture peut être utilisé dans des appareils comportant une séparation des déchets par un filtre, tel que présentés aux figures 6 et 7.This architectural principle can be used in devices comprising a separation of waste by a filter, as presented in FIGS. 6 and 7.
L'étape de compression reste sensiblement similaire à ce qui a déjà été évoqué, bien que le remplissage de la coupelle 170 soit indépendant de la quantité de liquide projetée sur les déchets à compacter.The compression step remains substantially similar to what has already been mentioned, although the filling of the cup 170 is independent of the amount of liquid projected onto the waste to be compacted.
Le principe de l'invention consiste donc à utiliser un dispositif de piston associé à une projection de liquide afin de comprimer et de compacter des déchets, ladite compression étant réalisée en liaison aéraulique avec une coupelle contenant un liquide afin, non seulement d'expulser l'air du récipient, mais également de prévenir toute fuite de particules, et notamment les particules fines, lors de l'opération de compression des déchets.The principle of the invention therefore consists in using a piston device associated with a projection of liquid in order to compress and compact waste, said compression being carried out in aeraulic connection with a cup containing a liquid in order not only to expel the air from the container, but also to prevent any leakage of particles, and in particular fine particles, during the waste compression operation.
Cette coupelle, lorsqu'elle est située à proximité des déchets accumulés, et notamment lorsqu'elle constitue le fond du récipient, permet également l'imprégnation des déchets par la remontée d'une partie du liquide dans le récipient contenant les déchets, afin d'uniformiser la répartition du liquide au sein des déchets. This cup, when it is located near the accumulated waste, and in particular when it constitutes the bottom of the container, also allows the impregnation of the waste by the ascent of part of the liquid in the container containing the waste, in order to '' standardize the distribution of the liquid within the waste.

Claims

REVENDICATIONS
1. Dispositif de compression des déchets aspirés dans un aspirateur et séparés du flux d'aspiration, comprenant : - un récipient (1 , 100, 101 , 102, 103) de stockage des déchets (9) de section constante comportant une ouverture (8, 81) d'admission des déchets (9), - un piston (12, 120) pouvant coulisser dans le récipient, le long des parois (2, 196, 200, 201) générées par la section constante sur une longueur déterminée, ledit piston (12, 120) étant en liaison sensiblement étanche avec lesdites parois (2, 196, 200, 201), caractérisé en ce que le dispositif comporte une coupelle (6, 61 , 170) de réception de liquide (16), ladite coupelle (6, 61 , 170) étant en liaison aéraulique d'une part avec le récipient (1 , 100, 101 , 102, 103) et d'autre part avec l'extérieur par l'intermédiaire d'une soupape (15, 150).1. A device for compressing waste sucked into a vacuum cleaner and separated from the suction flow, comprising: - a container (1, 100, 101, 102, 103) for storing waste (9) of constant section comprising an opening (8 , 81) waste inlet (9), - a piston (12, 120) which can slide in the container, along the walls (2, 196, 200, 201) generated by the constant section over a determined length, said piston (12, 120) being in substantially sealed connection with said walls (2, 196, 200, 201), characterized in that the device comprises a cup (6, 61, 170) for receiving liquid (16), said cup (6, 61, 170) being in aeraulic connection on the one hand with the container (1, 100, 101, 102, 103) and on the other hand with the outside by means of a valve (15, 150 ).
2. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que la coupelle (6, 61) est située à l'opposé du piston (12).2. Waste compression device according to the preceding claim, characterized in that the cup (6, 61) is located opposite the piston (12).
3. Dispositif de compression des déchets selon l'une des revendications précédentes, caractérisé en ce que la section constante du récipient (1 , 100, 101 , 102, 103) s'étend sensiblement verticalement, le récipient étant disposé sensiblement verticalement sur la coupelle (6, 61).3. Waste compression device according to one of the preceding claims, characterized in that the constant section of the container (1, 100, 101, 102, 103) extends substantially vertically, the container being disposed substantially vertically on the cup (6, 61).
4. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que la coupelle (6, 61) comporte des moyens de guidage des parois verticales du récipient pour sa mise en place précise dans ladite coupelle.4. Waste compression device according to the preceding claim, characterized in that the cup (6, 61) comprises means for guiding the vertical walls of the container for its precise positioning in said cup.
5. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que les moyens de guidage sont constitués de parois verticales (4, 40) comportant au moins une ouverture (21 , 22) en liaison avec au moins une ouverture ménagée dans le récipient. 5. Waste compression device according to the preceding claim, characterized in that the guide means consist of vertical walls (4, 40) comprising at least one opening (21, 22) in connection with at least one opening formed in the container.
6. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que la partie inférieure de la paroi verticale (196) est crénelée.6. Waste compression device according to the preceding claim, characterized in that the lower part of the vertical wall (196) is crenellated.
7. Dispositif de compression des déchets selon l'une des revendications 5 ou 6, caractérisé en ce que la coupelle (6, 61) constitue le fond du récipient (1 , 101 ,7. Waste compression device according to one of claims 5 or 6, characterized in that the cup (6, 61) constitutes the bottom of the container (1, 101,
102, 103) de stockage des déchets (9).102, 103) for waste storage (9).
8. Dispositif de compression des déchets selon l'une des revendications 1 à 6, caractérisé en ce que la partie inférieure du récipient (1 , 101 , 102, 103) de stockage comporte une partie horizontale percée d'orifices.8. Waste compression device according to one of claims 1 to 6, characterized in that the lower part of the container (1, 101, 102, 103) for storage comprises a horizontal part pierced with orifices.
9. Dispositif de compression des déchets selon l'une des revendications 1 à 8, caractérisé en ce que le récipient (1 , 100, 101 , 102, 103) est cylindrique et comporte au moins un joint d'étanchéité (14, 140) disposé entre le piston (12, 120) et les parois verticales du récipient (1 , 100, 101 , 102, 103).9. waste compression device according to one of claims 1 to 8, characterized in that the container (1, 100, 101, 102, 103) is cylindrical and comprises at least one seal (14, 140) disposed between the piston (12, 120) and the vertical walls of the container (1, 100, 101, 102, 103).
10. Dispositif de compression des déchets selon l'une des revendications 1 à 9, caractérisé en ce que le piston (12, 120) comporte un organe de commande10. Waste compression device according to one of claims 1 to 9, characterized in that the piston (12, 120) comprises a control member
(10) accessible par l'utilisateur et relié au piston (12, 120) au travers d'un couvercle du récipient ménagé à cet effet.(10) accessible by the user and connected to the piston (12, 120) through a cover of the container provided for this purpose.
11. Dispositif de compression des déchets selon l'une des revendications 1 à 10, caractérisé en ce que le piston (12, 120) comporte un dispositif de projection de liquide (6) dans le récipient.11. Waste compression device according to one of claims 1 to 10, characterized in that the piston (12, 120) comprises a device for spraying liquid (6) into the container.
12. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que le dispositif de projection de liquide (6) comporte un circuit d'amenée de liquide (18) jusqu'à des orifices (20) régulièrement répartis et débouchant sur la face du piston (12, 120) disposée en regard des déchets (9) à comprimer.12. Waste compression device according to the preceding claim, characterized in that the liquid spraying device (6) comprises a liquid supply circuit (18) to orifices (20) regularly distributed and opening onto the face of the piston (12, 120) disposed opposite the waste (9) to be compressed.
13. Dispositif de compression des déchets selon la revendication précédente caractérisé en ce que la projection de liquide (6) est commandée par l'utilisateur. 13. Waste compression device according to the preceding claim characterized in that the liquid projection (6) is controlled by the user.
14. Dispositif de compression des déchets selon la revendication 12, caractérisé en ce que la projection de liquide (6) est automatiquement commandée par le mouvement du piston (12, 120).14. Waste compression device according to claim 12, characterized in that the spraying of liquid (6) is automatically controlled by the movement of the piston (12, 120).
15. Dispositif de compression des déchets selon la revendication 12, caractérisé en ce que les opérations de projection de liquide (6) et de compression des déchets (9) sont automatiques.15. Waste compression device according to claim 12, characterized in that the liquid spraying operations (6) and waste compression (9) are automatic.
16. Dispositif de compression des déchets selon l'une des revendications précédentes, caractérisé en ce qu'un produit gélifiant ou se solidifiant soit avec le temps, soit à l'air, soit à la chaleur ou à la lumière est associé au liquide (9).16. Waste compression device according to one of the preceding claims, characterized in that a gelling or solidifying product either over time, or in air, or in heat or in light is associated with the liquid ( 9).
17. Dispositif de compression des déchets selon l'une des revendications précédentes, caractérisé en ce que le liquide (9) utilisé est de l'eau.17. Waste compression device according to one of the preceding claims, characterized in that the liquid (9) used is water.
18. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce qu'il contient de l'eau de javel ou un produit désinfectant en additif.18. Waste compression device according to the preceding claim, characterized in that it contains bleach or a disinfectant additive.
19. Dispositif de compression des déchets selon l'une des revendications précédentes, caractérisé en ce qu'il est associé à des moyens d'éjection des déchets sous la forme de déchets agglomérés (17).19. Waste compression device according to one of the preceding claims, characterized in that it is associated with means for ejecting the waste in the form of agglomerated waste (17).
20. Dispositif de compression des déchets selon l'une des revendications précédentes, caractérisé en ce qu'il est disposé dans le circuit de collecte des déchets séparés par un dispositif de type cyclonique ou inertiel (30).20. Waste compression device according to one of the preceding claims, characterized in that it is arranged in the waste collection circuit separated by a cyclonic or inertial type device (30).
21. Dispositif de compression des déchets selon l'une des revendications 1 à 19, caractérisé en ce que les parois (200, 201) du récipient (102, 103) sont constituées au moins partiellement d'un filtre (50, 501).21. Waste compression device according to one of claims 1 to 19, characterized in that the walls (200, 201) of the container (102, 103) consist at least partially of a filter (50, 501).
22. Dispositif de compression des déchets selon la revendication précédente, caractérisé en ce que les parois sont constituées d'un support en plastique poreux sur lequel est déposé un film PTFE expansé. 22. Waste compression device according to the preceding claim, characterized in that the walls consist of a porous plastic support on which is deposited an expanded PTFE film.
EP02764072A 2001-04-09 2002-03-19 Device for compacting waste in a vacuum cleaner Expired - Lifetime EP1385411B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0104826A FR2823091B1 (en) 2001-04-09 2001-04-09 DEVICE FOR COMPACTING WASTE IN A VACUUM
FR0104826 2001-04-09
PCT/FR2002/000954 WO2002085175A1 (en) 2001-04-09 2002-03-19 Device for compacting waste in a vacuum cleaner

Publications (2)

Publication Number Publication Date
EP1385411A1 true EP1385411A1 (en) 2004-02-04
EP1385411B1 EP1385411B1 (en) 2008-04-02

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EP02764072A Expired - Lifetime EP1385411B1 (en) 2001-04-09 2002-03-19 Device for compacting waste in a vacuum cleaner

Country Status (5)

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EP (1) EP1385411B1 (en)
AT (1) ATE390880T1 (en)
DE (1) DE60225905T2 (en)
FR (1) FR2823091B1 (en)
WO (1) WO2002085175A1 (en)

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Also Published As

Publication number Publication date
FR2823091A1 (en) 2002-10-11
ATE390880T1 (en) 2008-04-15
FR2823091B1 (en) 2003-06-13
DE60225905T2 (en) 2009-05-20
WO2002085175A1 (en) 2002-10-31
EP1385411B1 (en) 2008-04-02
DE60225905D1 (en) 2008-05-15

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