EP1491123B1 - Pump for fluid media - Google Patents
Pump for fluid media Download PDFInfo
- Publication number
- EP1491123B1 EP1491123B1 EP03014345A EP03014345A EP1491123B1 EP 1491123 B1 EP1491123 B1 EP 1491123B1 EP 03014345 A EP03014345 A EP 03014345A EP 03014345 A EP03014345 A EP 03014345A EP 1491123 B1 EP1491123 B1 EP 1491123B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cap
- pump
- chamber
- pump according
- 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.)
- Expired - Lifetime
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1052—Actuation means
- B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1077—Springs characterised by a particular shape or material
Definitions
- the invention relates to a pump for flowable media with a piston and a piston chamber, wherein the piston chamber at both ends by according to the movement of the piston actuated diaphragm valves can be sealed
- Field of application of the invention are pumps as disposable or disposable pumps for the Dispensing of flowable media such as cosmetics or hygiene products from bottles.
- the object of the invention is an optimal adaptation of the piston chamber and the diaphragm valves to the conditions of use.
- the invention differs from the prior art in that the medium is from the piston chamber is conveyed into an exit chamber. As a result, the piston chamber can be designed optimally become.
- the diaphragm valves hang on the cap, which consists of a resilient plastic.
- the formed on ring coats diaphragm valves may have a small radial cross-section
- a uniform guidance of the piston assembly is achieved in that the outer annular sheath the piston chamber is displaceable within the outlet chamber.
- a leakage of the medium from the filled and intact bottle is thereby prevented that the annular jacket holds a sealing stopper over a breaking seam.
- the suction position of the pump is fixed by that in the Anssaug ein the cap with a stop ring abuts against a stop step of the piston part.
- Aeration of the container is made possible by the fact that on the outer surface of the guide wall a plurality of axial webs are formed, which raise the sealing lip in the ejection position of the pump.
- a reduction of the components to two is made possible by a plastic spring einstükkig molded on the cap.
- the pump consists essentially of two or three parts.
- the first embodiment according to Figs. 1 and 2 comprises three parts: a ring-like piston 1, a piston chamber 2 forming Cap 3 and a coil spring 4 made of metal or plastic.
- the piston 1 and the cap 3 are Injection molded parts, wherein the piston 1 made of a hard, elastic thermoplastic such as polyoxymethylene and the cap is made of a flexible thermoplastic such as polyethylene.
- the piston 1 is seated on a ring plate 5, to which a cylindrical shell 6 with an internal thread 7 connects, which can be screwed onto a container, not shown.
- a head wall 8 of Piston 1 takes in a sleeve 9 to a suction nozzle 10, which is shown broken off and substantially reaches to the bottom of the container.
- At the sleeve 9 closes up an annular jacket 11th on, which forms the inner wall of the piston chamber 2.
- the sleeve 9 and the suction nozzle 10 and the venezwnad the annular sheath 11 biden a passing channel for the medium.
- the face of the Ring mantle 11 is closed by a sealing plug 12 which is integral with a break seam 13 the annular sheath 11 is connected.
- the sealing plug 12 closes the container tightly and prevents Leakage of the medium, if in the container, an overpressure due to temperature increase or through plastic deformation occurs.
- the breaking seam 13 is torn open. Even after this tearing is still a sealing function available.
- the annular plate 5 has one or more equalization openings 14 for pressure equalization the interior space of the container.
- On the ring plate 5 sit two cylindrical walls 15, 16, a Limit annular gap 17.
- the outer wall 15 terminates in a stop step 18.
- the inner wall 16 ends in a sealing lip 19.
- On the annular plate 5 is also concentric with the piston 1, a further annular Wall 20, which encloses an outlet chamber 21 together with the piston 1.
- the wall 20 ends in a sealing lip 22.
- the cap 3 carries an inner annular jacket 23 with a Membranvetil 24, which on the annular jacket 11 abuts, and an outer annular jacket 25 with a diaphragm valve 26 which on the wall of the piston 1 is applied.
- These ring shells 23, 25 form together with the annular casing 11 and the piston 1, the piston chamber 2, the content of which changes according to the movement of the cap 3.
- a guide wall 27 of the cap 3 projects into the annular gap between the wall 16 and the wall 20. At This guide wall 27 are on the one hand, the sealing lip 19 of the wall 16 and on the other hand, the sealing lip 22 of the wall 20 at.
- the sealing lip 22 is by the pressure in the outlet chamber 21 to the guide wall 27 pressed.
- An end jacket 28 of the cap 3 engages with a stop ring 29 on the Stop step 18 of the wall 15 of the annular plate 5. There is no seal.
- the outer diameter of the annular jacket 25 is smaller than the inner diameter of the wall 20, see. In particular Fig. 2, so that the outlet chamber 21 always unhindered with the outlet space 30 of Cap 3 has connection. To the outlet space 30, a nozzle 31 connects, through which the medium is ejected becomes.
- the cap 3 is in the axial direction on the after insertion of the spring 4 Pushed piston 1, wherein the sealing lips, diaphragm valves and stops slide over each other and to center yourself.
- the jacket 6 is screwed onto a vessel.
- the sealing plug 12 holds the Suction nozzle 10 is closed, so that no medium can escape.
- the cap 3 is pressed into the ejection position of FIG.
- the breaking seam 13 is severed and thus the sealing plug 12 is torn off, so that medium can flow through the suction nozzle 10. Even after the separation exercises the sealing plug still a sealing function.
- the spring 4 moves the cap 3 in the intake position of FIG. 1. This increases the Volume of the piston chamber 2, so that medium through the diaphragm valve 24 into the piston chamber. 2 can flow in.
- the piston chamber is reduced, wherein medium passes through the diaphragm valve 26 in the outlet chamber 21 and ejected through the nozzle 31 becomes.
- the sealing lip 19 is raised by the webs 32, so that air can flow through the compensation openings 14 in the interior of the container.
- the suction position of the pump is determined by the stopper stage 18, the ejection position by the stopper of the cap 3 on the end face of the annular jacket 11. As a result, the diaphragm valves spared.
- the modified embodiment of FIG. 3 has an integrally formed on the cap 3 Plastic spring 33.
Landscapes
- Closures For Containers (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Pumpe für fließfähige Medien mit einem Kolben und einer Kolbenkammer, wobei die Kolbenkammer an beiden Enden durch entsprechend der Bewegung des Kolbens betätigte Membranventile abdichtbar istThe invention relates to a pump for flowable media with a piston and a piston chamber, wherein the piston chamber at both ends by according to the movement of the piston actuated diaphragm valves can be sealed
Anwendungsgebiet der Erfindung sind Pumpen als Einwegpumpen oder Wegwerfpumpen für die Ausgabe von fließfähigen Medien wie Kosmetikmitteln oder Hygienemitteln aus Flaschen.Field of application of the invention are pumps as disposable or disposable pumps for the Dispensing of flowable media such as cosmetics or hygiene products from bottles.
Die DE 100 17 340 A 1 beschreibt eine Pumpe der gattungsgemäßen Art. Dort hat die Kolbenkammer im wesentlichen einen gleichbleibenden kreisringförmigen Querschnitt, so daß sich der Inhalt der Kolbenkammer proportional dem Weg des Kolbens ändert. Die Membranventile sitzen wechselweise an der Kolbenwandung und der Kolbenkammer. Infolgedessen ist die Werkstoffauswahl für die Membranventile eingeschränkt, so daß eine ausreichende Nachgiebigkeit derselben nicht erzielbar ist.DE 100 17 340 A 1 describes a pump of the generic type. There has the piston chamber essentially a constant annular cross section, so that the content the piston chamber changes proportionally to the travel of the piston. The diaphragm valves sit alternately on the piston wall and the piston chamber. As a result, the material selection for the diaphragm valves restricted, so that a sufficient flexibility of the same is not achievable.
Die DE 696 06 773 T2 beschreibt eine ähnliche Pumpe, deren Kolbenkammer eine Stufe aufweist, die als Anschlag für das eine Membranventil an dem Kolben dient. Bei der Bewegung des Kolben ändert sich der Querschnitt der Kolbenkammer, wodurch für ein bestimmtes Pumpvolumen ein kleinerer Kolbenweg erforderlich ist. Die Membranventile benötigen jedoch einen großen Querschnitt, was für deren Funktion ungünstig ist.DE 696 06 773 T2 describes a similar pump whose piston chamber has a step, which serves as a stop for a diaphragm valve on the piston. When moving the piston changes the cross-section of the piston chamber, whereby for a given pumping volume, a smaller piston travel is required. However, the diaphragm valves require a large cross-section, what for their Function is unfavorable.
Aufgabe der Erfindung ist eine optimale Anpassung der Kolbenkammer und der Membranventile an die Gebrauchsverhältnisse.The object of the invention is an optimal adaptation of the piston chamber and the diaphragm valves to the conditions of use.
Diese Aufgabe wird nach der Erfindung gemäß Anspruch 1 gelöst.This object is achieved according to the invention according to claim 1.
Die Erfindung unterscheidet sich insofern vom Stand der Technik, als das Medium von der Kolbenkammer in eine Austrittskammer gefördert wird. Dadurch kann die Kolbenkammer optimal gestaltet werden. Die Membranventile hängen an der Kappe, die aus einem nachgiebigen Kunststoff besteht. Die an Ringmäntel angeformten Membranventile können einen kleinen radialen Querschnitt aufweisen The invention differs from the prior art in that the medium is from the piston chamber is conveyed into an exit chamber. As a result, the piston chamber can be designed optimally become. The diaphragm valves hang on the cap, which consists of a resilient plastic. The formed on ring coats diaphragm valves may have a small radial cross-section
Eine gleichmäßige Führung der Kolbenanordnung wird dadurch erzielt, daß der äußere Ringmantel der Kolbenkammer innerhalb der Austrittskammer verschiebbar ist.A uniform guidance of the piston assembly is achieved in that the outer annular sheath the piston chamber is displaceable within the outlet chamber.
Ein Austreten dess Mediums aus der gefüllten und unversehrten Flasche wird dadurch verhindert, daß der Ringmantel über eine Bruchnaht einen Dichtstopfen hält.A leakage of the medium from the filled and intact bottle is thereby prevented that the annular jacket holds a sealing stopper over a breaking seam.
Die Ansaugstellung der Pumpe wird dadurch fixiert, daß in der Anssaugstellung die Kappe mit einem Anschlagring an einer Anschlagstufe des Kolbenteils anliegt.The suction position of the pump is fixed by that in the Anssaugstellung the cap with a stop ring abuts against a stop step of the piston part.
Entsprechend erfolgt eine Fixierung der Ausspritzstellung derart, daß in der Ausspritzstellung die Kappe an der Kopffläche des Ringmantels anliegt.Accordingly, a fixing of the ejection position takes place such that in the ejection position Cap on the top surface of the ring mantle rests.
Eine verbesserte Führung und Funktion der Pumpe wird dadurch erreicht, daß eine Führungswand der Kappe zwischen Wänden des Kolbenteils dichtend geführt ist.An improved guidance and function of the pump is achieved in that a guide wall the cap is sealingly guided between walls of the piston part.
Eine Belüftung des Behälters wird dadurch ermöglicht, daß an der Außenfläche der Führungswand mehrere axiale Stege angeformt sind, die in der Ausspritzstellung der Pumpe die Dichtlippe anheben.Aeration of the container is made possible by the fact that on the outer surface of the guide wall a plurality of axial webs are formed, which raise the sealing lip in the ejection position of the pump.
Eine Reduktion der Bauteile auf zwei wird dadurch ermöglicht, daß eine Kunststofffeder einstükkig an der Kappe angespritzt ist.A reduction of the components to two is made possible by a plastic spring einstükkig molded on the cap.
Ausführungsbeispiele werden anhand der Zeichnungen erläutert, in denen darstellen:
Die Pumpe besteht im wesentlichen aus zwei oder drei Teilen. Das erste Ausführungsbeispiel nach
den Fig. 1 und 2 umfaßt drei Teile: einen ringmantelartigen Kolben 1, eine eine Kolbenkammer 2 bildenden
Kappe 3 und eine Schraubenfeder 4 aus Metall oder Kunststoff. Der Kolben 1 und die Kappe 3 sind
Spritzgießformteile, wobei der Kolben 1 aus einem harten, elastischen Thermoplast wie Polyoxymethylen
und die Kappe aus einem flexiblen Thermoplast wie Polyethylen bestehen.The pump consists essentially of two or three parts. The first embodiment according to
Figs. 1 and 2 comprises three parts: a ring-like piston 1, a piston chamber 2 forming
Der Kolben 1 sitzt an einer Ringplatte 5, an die sich ein zylindrischer Mantel 6 mit einem Innengewinde
7 anschließt, das auf einen nicht dargestellten Behälter aufschraubbar ist. Eine Kopfwand 8 des
Kolbens 1 nimmt in einer Hülse 9 einen Saugstutzen 10 auf, der abgebrochen dargestellt ist und im wesentlichen
bis zum Boden des Behälters reicht. An die Hülse 9 schließt sich nach oben ein Ringmantel 11
an, der die Innenwand der Kolbenkammer 2 bildet. Die Hülse 9 bzw. der Saugstutzen 10 und die Innenwnad
des Ringmantel 11 biden einen durchgehenenden Kanal für das Medium. Die Stirnfläche des
Ringmantels 11 ist durch einen Dichtstopfen 12 abgeschlossen, der durch eine Bruchnaht 13 integral mit
dem Ringmantel 11 verbunden ist. Der Dichtstopfen 12 schließt den Behälter dicht ab und verhindert ein
Auslaufen des Mediums, wenn in dem Behälter ein Überdruck durch Temperaturerhöhung oder durch
plastische Verformung auftritt. Bei der ersten Betätigung der Pumpe wird die Bruchnaht 13 aufgerissen.
Auch nach diesem Aufreißen ist noch eine Dichtfunktion vorhanden.The piston 1 is seated on a ring plate 5, to which a
Die Ringplatte 5 weist eine oder mehrere Ausgleichsöffnungen 14 für einen Druckausgleich mit
dem Inneraum des Behälters auf. An der Ringplatte 5 sitzen zwei zylindrische Wände 15, 16, die einen
Ringspalt 17 begrenzen. Die äußere Wand 15 endet in eine Anschlagstufe 18. Die innere Wand 16 endet
in eine Dichtlippe 19. An der Ringplatte 5 sitzt ferner konzentrisch zu dem Kolben 1 eine weitere ringförmige
Wand 20, die zusammen mit dem Kolben 1 eine Austrittskammer 21 umschließt. Die Wand 20
endet in eine Dichtlippe 22.The annular plate 5 has one or
Die Kappe 3 trägt einen inneren Ringmantel 23 mit einem Membranvetil 24, das an dem Ringmantel
11 anliegt, und einen äußeren Ringmantel 25 mit einem Membranventil 26, das an der Wandung
des Kolbens 1 anliegt. Diese Ringmäntel 23, 25 bilden zusammen mit dem Ringmantel 11 und dem Kolben
1 die Kolbenkammer 2, deren Inhalt sich entsprechend der Bewegung der Kappe 3 ändert. Eine Führungswand
27 der Kappe 3 ragt in den Ringspalt zwischen der Wand 16 und der Wand 20 hinein. An
dieser Führungswand 27 liegen einerseits die Dichtlippe 19 der Wand 16 und andererseits die Dichtlippe
22 der Wand 20 an. Die Dichtlippe 22 wird durch den Druck in der Austrittskammer21 an die Führungswand
27 angedrückt. Ein Abschlußmantel 28 der Kappe 3 greift mit einem Anschlagring 29 über die
Anschlagstufe 18 der Wand 15 der Ringplatte 5. Dort erfolgt keine Abdichtung.The
An der Außenfläche der Führungswand 27 sind mehrere axiale Stege 32 angeformt, die in der
Ausspritzstellung der Pumpe nach Fig. 2 die Dichtlippe 19 anheben, so daß die Dichtfunktion aufgehoben
ist und Luft in den Behälter nachströmen kann.On the outer surface of the guide wall 27 a plurality of
Der Außendurchmesser des Ringmantels 25 ist kleiner als der Innendurchmesser der Wand 20,
vgl. insbesondere Fig. 2, damit die Austrittskammer 21 immer ungehindert mit dem Austrittsraum 30 der
Kappe 3 Verbindung hat. An den Austrittsraum 30 schließt eine Düse 31 an, durch die das Medium ausgespritzt
wird.The outer diameter of the
Zur Montage der Pumpe wird nach Einlage der Feder 4 die Kappe 3 in axialer Richtung über den
Kolben 1 geschoben, wobei die Dichtlippen, Membranventile und Anschläge übereinander gleiten und
sich zentrieren. Der Mantel 6 wird auf ein Gefäß aufgeschraubt. Dabei hält der Dichtstopfen 12 den
Saugstutzen 10 geschlossen, so daß kein Medium austreten kann.For installation of the pump, the
Zum Gebrauch wird die Kappe 3 in die Ausspritzstellung nach Fig. 2 gedrückt. Bei der ersten
Betätigung der Kappe 3 wird die Bruchnaht 13 durchtrennt und damit der Dichtstopfen 12 abgerissen, so
daß Medium durch den Saugstutzen 10 fließen kann. Auch nach dem Abtrennen übt der Dichtstopfen
noch eine Abdichtfunktion auf.For use, the
Die Feder 4 bewegt die Kappe 3 in die Ansaugstellung nach Fig. 1. Dabei vergrößert sich das
Volumen der Kolbenkammer 2, so daß Medium durch das Membranventil 24 in die Kolbenkammer 2
einströmen kann. Bei der anschließenden Betätigung der Kappe 3 wird die Kolbenkammer verkleinert,
wobei Medium durch das Membranventil 26 in die Austrittskammer 21 tritt und durch die Düse 31 ausgespritzt
wird. In der Ausspritzstellung ist die Dichtlippe 19 durch die Stege 32 angehoben, so daß Luft
über die Ausgleichsöffnungen 14 in den Inneraum des Behälters strömen kann.The spring 4 moves the
Die Ansaugstellung der Pumpe wird durch die Anschlagstufe 18 festgelegt, die Ausspritzstellung
durch den Anschlag der Kappe 3 an der Stirnfläche des Ringmantels 11. Dadurch werden die Membranventile
geschont.The suction position of the pump is determined by the
Das abgewandelte Ausführungsbeispiel nach Fig. 3 besitzt eine einstückig an der Kappe 3 angeformte
Kunststofffeder 33.The modified embodiment of FIG. 3 has an integrally formed on the
Claims (8)
- Pump for flowable media, comprising a piston and a piston chamber, the piston chamber being sealable at both ends by diaphragm valves actuated according to the movement of the piston, characterised in that an upper wall (8) and an annular shell (11) of the piston (1) project into the piston chamber (2), in that the piston chamber (2) is delimited in addition by two annular shells (23, 25), which rest respectively via diaphragm valves (24, 26) against the annular shell (11) and the outer face of the piston (1), and in that the piston chamber (2) is connected to an outlet chamber (21) having a nozzle (31).
- Pump according to claim 1, characterised in that the outer annular shell (25) of the piston chamber (2) is displaceable inside the outlet chamber (21).
- Pump according to claim 1 or 2, characterised in that the annular shell (11) retains a sealing plug (12) by means of a breakable seam (13).
- Pump according to any one of claims 1 to 3, characterised in that in the intake position a stop ring (29) of the cap (3) rests against an abutment step (18) of the piston part.
- Pump according to any one of claims 1 to 4, characterised in that in the discharge position the cap (3) rests against the upper face of the annular shell (11).
- Pump according to any one of claims 1 to 5, characterised in that a guide wall (27) of the cap (3) is guided sealingly between walls (16, 20) of the piston part.
- Pump according to claim 6, characterised in that a plurality of axial ribs (32) which raise the sealing lip (19) in the discharge position of the pump are moulded to the outer face of the guide wall (27).
- Pump according to any one of claims 1 to 7, characterised in that a plastics spring (33) is injection-moulded integrally on the cap.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50301553T DE50301553D1 (en) | 2003-06-26 | 2003-06-26 | Pump for flowable media |
| AT03014345T ATE308265T1 (en) | 2003-06-26 | 2003-06-26 | PUMP FOR FLOWING MEDIA |
| EP03014345A EP1491123B1 (en) | 2003-06-26 | 2003-06-26 | Pump for fluid media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03014345A EP1491123B1 (en) | 2003-06-26 | 2003-06-26 | Pump for fluid media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1491123A1 EP1491123A1 (en) | 2004-12-29 |
| EP1491123B1 true EP1491123B1 (en) | 2005-11-02 |
Family
ID=33395873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03014345A Expired - Lifetime EP1491123B1 (en) | 2003-06-26 | 2003-06-26 | Pump for fluid media |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1491123B1 (en) |
| AT (1) | ATE308265T1 (en) |
| DE (1) | DE50301553D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481852B (en) * | 2014-10-28 | 2016-08-31 | 上海空间推进研究所 | A kind of compensation capsule stack and installation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676277A (en) * | 1991-05-20 | 1997-10-14 | Ophardt; Heiner | Disposable plastic liquid pump |
| DE10017340A1 (en) * | 2000-04-07 | 2001-10-18 | Rosenthal Karl Heinz | pump |
-
2003
- 2003-06-26 EP EP03014345A patent/EP1491123B1/en not_active Expired - Lifetime
- 2003-06-26 DE DE50301553T patent/DE50301553D1/en not_active Expired - Fee Related
- 2003-06-26 AT AT03014345T patent/ATE308265T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE50301553D1 (en) | 2005-12-08 |
| ATE308265T1 (en) | 2005-11-15 |
| EP1491123A1 (en) | 2004-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20040605 |
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