GB2411346A - Air discharge structure for a vacuum cleaner - Google Patents
Air discharge structure for a vacuum cleaner Download PDFInfo
- Publication number
- GB2411346A GB2411346A GB0416416A GB0416416A GB2411346A GB 2411346 A GB2411346 A GB 2411346A GB 0416416 A GB0416416 A GB 0416416A GB 0416416 A GB0416416 A GB 0416416A GB 2411346 A GB2411346 A GB 2411346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exhaust grille
- exhaust
- vacuum cleaner
- discharge structure
- air discharge
- 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
Links
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 12
- 238000004891 communication Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/213—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods
- G06F18/2134—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods based on separation criteria, e.g. independent component analysis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Data Mining & Analysis (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Computational Biology (AREA)
- Evolutionary Biology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Artificial Intelligence (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Evolutionary Computation (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Wood Science & Technology (AREA)
- Electric Suction Cleaners (AREA)
- Exhaust Silencers (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
An air discharge structure for a vacuum cleaner (100) comprises an exhaust grille (103) through which air is exhausted from a motor chamber mounted in a vacuum cleaner body (101). An exhaust grille cover (110) is provided to cover the exhaust grille (103), and to close the exhaust grille when the vacuum cleaner is not in operation. The exhaust grille cover (110) is opened as a result of the force generated by back pressure of the exhaust air discharged from the exhaust grille (103) when the vacuum cleaner is in operation. A resilient member (121) rests in a seating hole (130) which is located adjacent to the exhaust grille (103), to return the exhaust grille cover to the closed position when the vacuum cleaner (100) stops operation.
Description
1 241 346 Air Discharge Structure for a Vacuum Cleaner This invention
relates to an air discharge structure for a vacuum cleaner, and in particular to an air discharge structure for a vacuum cleaner which automatically opens and closes a discharge grille in the cleaner body in accordance with whether or not the vacuum cleaner is being used, thereby preventing external dust from entering into the vacuum cleaner when it is not in use.
A conventional air discharge structure for a vacuum cleaner is illustrated in Figure l, the discharge structure comprising an exhaust grille 4 having a plurality of fine holes or slits at an exhaust opening (not shown) formed in a motor chamber (not shown) of a cleaner body l in fluid communication with the outside environment, and an exhaust filter (not shown) removably attached to the exhaust opening inside the exhaust grille, to f]ter out line dust from the exhaust air flowing out of the exhaust grille.
Additionally, a suction port 2 is provided for drawing dust-carrying air into the cleaner body 1.
During operation of such a vacuum cleaner, as the cleaning operation begins, dust-carrying air is drawn into the vacuum cleaner from a surface to be cleaned through a nozzle unit (not shown) which is in fluid communication with the suction port 2. The air and dust drawn into the cleaner body 1 are directed toward a dust-collecting chamber (not shown) in the cleaner body 1, where the dust is separated from the air and is collected in a paper bag or other filter.
The cleaned air flows through the exhaust filter and the exhaust grille 4, and is discharged to the environment outside the cleaner body 1. Additionally, fine dust, which has not been separated by the exhaust filter, is filtered out of the air before discharge in a secondary filtering operation.
However, because the exhaust grille 4 of the conventional air discharge structure is normally exposed to the outside of the cleaner body l, external dust or other contaminants (hereinafter referred to as "dust") can easily enter into the cleaner through the holes or slits of the exhaust grille, especially when the cleaner is not in use.
The aim of the invention is to solve the above drawbacks and other problems associated with the conventional arrangement, in particular to provide an air discharge structure for a vacuum cleaner that is capable of selectively opening communication to an exhaust grille when the vacuum cleaner is in use, and closing the exhaust grille when the vacuum cleaner is not in use, thereby preventing external dust from entering into the cleaner body through the exhaust grille.
The present invention provides an air discharge structure for a vacuum cleaner, the structure comprising: an exhaust grille through which exhaust air is discharged from a motor chamber mounted in a vacuum cleaner body; an exhaust grille cover disposed in a position corresponding to the exhaust grille so as to close the exhaust grille when the vacuum cleaner is not in operation, the exhaust grille cover being openable to permit air flow through the exhaust grille using the back pressure of the exhaust air discharged from the exhaust grille when the vacuum cleaner is in operation; and a resilient member disposed in a seating hole which is located adjacent to the exhaust grille, the resilient member being arranged and configured to bias the exhaust grille cover towards the closed position when the vacuum cleaner stops operation.
Because the exhaust grille cover is movably connected to the cleaner body, with a resilient member disposed between the exhaust grille cover and the vacuum cleaner body, the exhaust grille cover can be automatically returned to the closed condition when the vacuum cleaner stops operation.
Preferably, the exhaust grille cover is openable and closable about a hinge connection to the vacuum cleaner body.
Advantageously, the exhaust grille cover defines gaps defined by a plurality of ribs on the surface thereof facing the exhaust grille. Preferably, the contact area of the exhaust air flowing from the exhaust grille and the exhaust grille cover is increased to an area as large as possible.
Conveniently, the exhaust grille cover further comprises an air-blocking plate for directing exhaust air discharged from the exhaust grille towards both sides of the exhaust grille cover.
Preferably, the resilient member comprises a leaf spring which is configured to permit insertion of a seating part thereof into the seating hole.
In a preferred embodiment, the resilient member comprises: a resilient lever for contacting the exhaust grille cover; and a separationpreventing means for preventing the resilient member from withdrawing from the vacuum cleaner body.
Advantageously, the separation-preventing protrusions comprises first and the second separation-preventing protrusions, each being integrally formed with the resilient member, and having a portion protruding outwardly therefrom. Preferably, the first and the second separation- preventing protrusions extend in opposite directions to prevent separation of the resilient member from the vacuum cleaner body.
The invention will now be described in greater detail, by way of example, with reference to the drawings, in which: Figure 1 is a perspective view of a vacuum cleaner having a conventional air discharge structure; Figure 2 is a perspective view of a vacuum cleaner having an air discharge structure constructed according to the present invention; Figure 3 is an exploded perspective view of an exhaust grille and an exhaust grille cover of the air discharge structure of Figure 2; Figures 4 and 5 are perspective views, shown in partial cross-section, illustrating respectively the exhaust grille cover of the air discharge structure in closed and open positions; and Figure 6 is a cross-sectional detail view illustrating the operational principle of the exhaust grille cover shown in Figures 4 and 5.
In the following description, the same reference numerals are used for the same elements. The parameters defined in the following description, such as the detailed construction, elements and operation are only provided to assist in a comprehensive understanding of the invention, and the present invention is not intended to be limited by the defined parameters. Also, well-known functions or constructions are not described in detail, since they would obscure the invention in unnecessary detail.
Referring to the drawings, Figures 2 to 5 show a vacuum cleaner 100 having an air discharge structure which comprises an exhaust grille 103 which is in fluid communication with a motor chamber (not shown) disposed inside a cleaner body 101.
An exhaust grille cover 110, having a shape that complements that of the exhaust grille 103, is provided to cover the exhaust grille. The cover I 10 is openable and closable in accordance with whether or not exhaust air is flowing through the exhaust grille 103. A resilient member 120 biases the exhaust grille cover 110 towards its closed position from its open position when the pressure from the exhaust air is no longer present.
The exhaust grille 103 has a plurality of fine holes, and accordingly, dust-carrying air flowing through the suction port 102 of the cleaner body 101 passes through a dust-collecting chamber (not shown), where the dust is filtered, and the clean air is discharged to the outside through the exhaust grille. An exhaust filter (not shown) is disposed between the exhaust grille 103 and the motor chamber. The exhaust filter is supported on the exhaust grille 103; and, as particles of fine dust are filtered by the exhaust filter, the cleaned air can be discharged to the outside.
The exhaust grille cover 110 is pivoted to the upper side of the vacuum cleaner body 101, as shown in Figure 3, the exhaust grille cover having at least one hinge hole 111 fonmed in a position corresponding to at least one hinge protrusion 104 provided on the body 101 adjacent to the exhaust grille 103. The exhaust grille cover 110 is openable and closable by pivotal movement with respect to the exhaust grille 103.
The exhaust grille cover 110 includes a protrusion 112 for contact with a resilient member 120, which will be described below in greater detail, and an air-blocking plate 113 that is Conned at the front of the grille cover to guide exhaust air from the exhaust grille 103 to the left and right sides of the vacuum cleaner 100.
The air-blocking plate 113 acts to guide exhaust air from the motor chamber to the left and right sides of the user, while simultaneously preventing the air from blowing towards the front of the cleaner body 101 where the user usually stands, thereby providing convenience to the user.
In order to increase the area available for contact with the exhaust air being discharged from the exhaust grille 103, i.e. in order to utilise the force developed by back pressure from the exhaust air, a plurality of open spaces or gaps 115 are defined, each gap being between a respective adjacent pair of a plurality of ribs 114. As the air is exhausted through the gaps 115, maximum force from the exhaust air back pressure can be transferred to the exhaust grille cover 110.
The resilient member 120 provides a resilient biassing force that retunns the exhaust grille cover 110 to the closed position for closing the exhaust grille 103; and, as shown in Figure 3, is formed as a leaf spring. More specifically, the resilient member 120 is bent such that it has a base that complements the shape of a seating hole 130 formed adjacent to the exhaust grille 103, and received in the seating hole. In one preferred example, the resilient member 120 may be bent twice to provide a shape substantially like the letter 'J'.
The resilient member 120 may further comprise a resilient lever 121 extending upwardly from the base so as to be able to contact the exhaust grille cover 110. A plurality of first separation-preventing protrusions 122 extend rearwardly from the resilient member 120 to be adjacent to the vacuum cleaner body 101, and a second separation-preventing protrusion 123 extends towards the front of the vacuum cleaner body in the direction of the suction port 102 (see Figure 2).
The resilient lever 121 engages the protrusion 112 disposed on the inner side of the exhaust grille cover 110, one end of the lever being shaped to complement that protrusion, as shown in Figure 3, and being partially bent towards that protrusion to facilitate contact therewith.
The first separation-preventing protrusions 122 are formed on either side of the resilient lever 121, and are provided to prevent the resilient member 120 from withdrawing from the seating hole 130. To this end, the first separation-preventing protrusions 122 are integrally formed with the resilient lever 121 to press against the inner circumference of the seating hole 130 by exerting a predetermined pressure against the walls thereof.
The second separation-preventing protrusion 123 is disposed on that side of the resilient lever 121 opposite the first separation-preventing protrusions 122, and extends in an opposite direction to the first separation-preventing protrusions 122, so as to offset the resilient pressure of the first separation-preventing protrusions on the inner circumference of the seating hole 130.
By cooperation of the first and second separation-preventing protrusions 122 and 123, the resilient member 120 has a tight interference fit within the inner circumference of the walls defining the seating hole 130, and thus prevents the resilient member from moving upwardly out of the seating hole.
As a result, the exhaust grille cover 110 remains in a closed position, so as to close the exhaust grille 103 (as shown in Figure 4) when the vacuum cleaner 100 is not in use.
The exhaust grille cover 110 opens the exhaust grille 103 when rotated in an upwards direction about the hinge protrusion(s) 104 and the hinge hole(s) 111 as a result of the upwardly-directed force caused by the back pressure of the exhaust air discharged from the exhaust grille when the vacuum cleaner 100 is in use, as shown in Figure 5.
When the exhaust grille cover 110 is opened by the back pressure of the exhaust air, as shown in Figure 6, the resilient member 120 presses the resilient lever 121 to deform in the direction indicated by arrow F. The resilient lever 121 exerts a recovery force to the hinged exhaust grille cover 110 so as to bias it towards the initial position (see Figure 4), in the direction indicated by arrow A of Figure 6 with respect to the protrusion 1 12.
Accordingly, the exhaust grille cover 110 is subjected to a recovery force causing it to rotate in the direction indicated by arrow B. Because the back pressure of the exhaust air discharged through the exhaust grille 103 is larger than the recovery force from the resilient pressure of the resilient member 120, the exhaust grille cover 110 is retained in the open state.
When the vacuum cleaner 100 stops operation, discharge of air exhaust also ceases.
Accordingly, the resilient recovery force of the resilient member 130 causes the exhaust grille cover I 10 to rotate in the direction indicated by the arrow B of Figure 6, and to return to the initial position, which closes the exhaust grille 103. Because the flow rate of the exhaust air decreases gradually, rather than being cut off abruptly, the force applied to the exhaust grille cover 110 gradually changes so that the exhaust grille cover is rotated to the closed position smoothly without snapping shut.
As a result, the exhaust grille 103 is not exposed to the outside environment when not in operation, and entrance of external dust through the exhaust grille into the body 101 is prevented when the vacuum cleaner 100 is not in use.
As described above, the exhaust grille cover 110 is automatically opened from the closed position by the force of the back pressure of the exhaust air discharged through the exhaust grille 103 when the vacuum cleaner 100 is in use. When the vacuum cleaner 100 stops operation, or when it is not in use, the exhaust grille cover 110, disposed between the exhaust grille 103 and the cleaner body, is pressed by the resilient member 120 to the initial position, and thereby closes the exhaust grille. Accordingly, because the exhaust grille 103 is not exposed to the external environment, external dust is prevented from entering through the exhaust grille when the vacuum cleaner 100 is not in use.
The foregoing embodiment and advantages are merely exemplary, and are not to be construed as limiting the scope of the present invention. The present teaching can be readily applied to other types of apparatus. Also, the description of the present invention is intended to be illustrative, and not to limit the scope of the following claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art upon achieving a full understanding of the present invention.
Claims (9)
- Claims 1. An air discharge structure for a vacuum cleaner, the structurecomprising: an exhaust grille through which exhaust air is discharged from a motor chamber mounted in a vacuum cleaner body; an exhaust grille cover disposed in a position corresponding to the exhaust grille so as to close the exhaust grille when the vacuum cleaner is not in operation, the exhaust grille cover being openable to permit air flow through the exhaust grille using the back pressure of the exhaust air discharged from the exhaust grille when the vacuum cleaner is in operation; and a resilient member disposed in a seating hole which is located adjacent to the exhaust grille, the resilient member being arranged and configured to bias the exhaust grille cover towards the closed position when the vacuum cleaner stops operation.
- 2. An air discharge structure as claimed in claim 1, wherein the exhaust grille cover is openable and closable about a hinge connection to the vacuum cleaner body.
- 3. An air discharge structure as claimed in claim 1 or claim 2, wherein the exhaust grille cover defines gaps defined by a plurality of ribs on the surface thereof facing the exhaust grille.
- 4. A air discharge structure as claimed in any one of claims 1 to 3, wherein the exhaust grille cover further comprises an air-blocking plate for directing exhaust air discharged from the exhaust grille towards both sides of the exhaust grille cover.
- 5. A air discharge structure as claimed in any one of claims I to 4, wherein the resilient member comprises a leaf spring which is configured to permit insertion of a seating part thereof into the seating hole.
- 6. A air discharge structure as claimed in claim 5, wherein the resilient member comprises: a resilient lever for contacting the exhaust grille cover; and a separation-preventing means for preventing the resilient member from withdrawing from the vacuum cleaner body.
- 7. An air discharge structure as claimed in claim 6, wherein the separation-preventing means comprises first and second separationpreventing protrusions, each being integrally formed with the resilient member, and having a portion protruding outwardly therefrom.
- 8. An air discharge structure as claimed in claim 7, wherein the first and the second l O separation-preventing protrusions extend in opposite directions to prevent separation of the resilient member from the vacuum cleaner body.
- 9. An air discharge structure for a vacuum cleaner, the air discharge structure being substantially as hereinbefore described with reference to, and as illustrated by, Figures 2 to 6 ofthe drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040013018A KR100565005B1 (en) | 2004-02-26 | 2004-02-26 | Discharging apparatus for vacuum cleaner |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0416416D0 GB0416416D0 (en) | 2004-08-25 |
| GB2411346A true GB2411346A (en) | 2005-08-31 |
| GB2411346B GB2411346B (en) | 2007-12-27 |
Family
ID=32923836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0416416A Expired - Fee Related GB2411346B (en) | 2004-02-26 | 2004-07-22 | Air discharge structure for a vacuum cleaner |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20050188497A1 (en) |
| KR (1) | KR100565005B1 (en) |
| CN (1) | CN1287723C (en) |
| AU (1) | AU2004202982B2 (en) |
| DE (1) | DE102004035237A1 (en) |
| ES (1) | ES2259510B2 (en) |
| FR (1) | FR2866797B1 (en) |
| GB (1) | GB2411346B (en) |
| IT (1) | ITMI20041488A1 (en) |
| NL (1) | NL1026630C2 (en) |
| RU (1) | RU2275837C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2563787C1 (en) * | 2012-10-09 | 2015-09-20 | Конинклейке Филипс Н.В. | Exhaust grille |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896680B1 (en) * | 2006-02-02 | 2008-06-06 | Seb Sa | VACUUM |
| KR101457433B1 (en) * | 2007-11-05 | 2014-11-06 | 삼성전자주식회사 | Vacuum cleaner |
| DE102011007203A1 (en) | 2011-04-12 | 2012-10-18 | BSH Bosch und Siemens Hausgeräte GmbH | Arrangement for blowing out an exhaust air stream |
| JP6500687B2 (en) * | 2015-08-05 | 2019-04-17 | 三菱電機株式会社 | Electric vacuum cleaner |
| KR20190001238U (en) | 2017-11-17 | 2019-05-27 | 송찬호 | Reactive Wall Paper Apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192194A (en) * | 1997-01-17 | 1998-07-28 | Namura Denki Kogyo Kk | Noise reducing cover for vacuum cleaner |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1891256A (en) * | 1929-04-22 | 1932-12-20 | Electrolux Corp | Vacuum cleaner |
| US2130811A (en) * | 1937-12-06 | 1938-09-20 | Nelson Mathews | Ventilator |
| NL292247A (en) * | 1956-12-13 | |||
| US3873285A (en) * | 1972-04-07 | 1975-03-25 | Hoover Co | Suction cleaner |
| US5482507A (en) * | 1994-08-01 | 1996-01-09 | Priest; Johnny B. | Clothes dryer vent |
| US6361433B1 (en) * | 1997-03-26 | 2002-03-26 | William R. Gray | Vent screen and hood assembly |
| JPH11146846A (en) * | 1997-11-14 | 1999-06-02 | Ryuzo Washisaki | Wing device of discharge port in vacuum cleaner |
| US6370730B1 (en) * | 1998-08-28 | 2002-04-16 | Emerson Electric Co. | Hose lock with integral seal |
| US6609270B2 (en) * | 2000-01-17 | 2003-08-26 | Samsung Kwangju Electronics Co., Ltd. | Discharge grill mounting structure of upright vacuum cleaner |
| US6527006B2 (en) * | 2001-07-02 | 2003-03-04 | Arvinmeritor, Inc. | Exhaust valve assembly |
| KR100445803B1 (en) * | 2002-02-05 | 2004-08-25 | 삼성광주전자 주식회사 | Air exhaust structure of an upright-type vacuum cleaner |
| US7235121B2 (en) * | 2003-12-26 | 2007-06-26 | West Timothy J | Externally removable vacuum cleaner filter apparatus |
-
2004
- 2004-02-26 KR KR1020040013018A patent/KR100565005B1/en not_active IP Right Cessation
- 2004-06-17 US US10/870,659 patent/US20050188497A1/en not_active Abandoned
- 2004-06-30 AU AU2004202982A patent/AU2004202982B2/en not_active Ceased
- 2004-07-01 ES ES200401589A patent/ES2259510B2/en not_active Expired - Fee Related
- 2004-07-09 NL NL1026630A patent/NL1026630C2/en not_active IP Right Cessation
- 2004-07-19 CN CNB2004100699012A patent/CN1287723C/en not_active Expired - Fee Related
- 2004-07-20 FR FR0408040A patent/FR2866797B1/en not_active Expired - Fee Related
- 2004-07-21 DE DE102004035237A patent/DE102004035237A1/en not_active Withdrawn
- 2004-07-22 RU RU2004122585/12A patent/RU2275837C2/en not_active IP Right Cessation
- 2004-07-22 IT IT001488A patent/ITMI20041488A1/en unknown
- 2004-07-22 GB GB0416416A patent/GB2411346B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192194A (en) * | 1997-01-17 | 1998-07-28 | Namura Denki Kogyo Kk | Noise reducing cover for vacuum cleaner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2563787C1 (en) * | 2012-10-09 | 2015-09-20 | Конинклейке Филипс Н.В. | Exhaust grille |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2004202982A1 (en) | 2005-09-15 |
| ES2259510A1 (en) | 2006-11-01 |
| CN1660005A (en) | 2005-08-31 |
| ITMI20041488A1 (en) | 2004-10-22 |
| CN1287723C (en) | 2006-12-06 |
| US20050188497A1 (en) | 2005-09-01 |
| RU2004122585A (en) | 2006-01-20 |
| AU2004202982B2 (en) | 2006-06-29 |
| KR20050087292A (en) | 2005-08-31 |
| DE102004035237A1 (en) | 2005-09-15 |
| GB0416416D0 (en) | 2004-08-25 |
| GB2411346B (en) | 2007-12-27 |
| FR2866797B1 (en) | 2006-08-25 |
| RU2275837C2 (en) | 2006-05-10 |
| ES2259510B2 (en) | 2007-07-16 |
| NL1026630C2 (en) | 2005-08-29 |
| KR100565005B1 (en) | 2006-03-30 |
| FR2866797A1 (en) | 2005-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080722 |