US3506308A - Car seats - Google Patents
Car seats Download PDFInfo
- Publication number
- US3506308A US3506308A US692624A US3506308DA US3506308A US 3506308 A US3506308 A US 3506308A US 692624 A US692624 A US 692624A US 3506308D A US3506308D A US 3506308DA US 3506308 A US3506308 A US 3506308A
- Authority
- US
- United States
- Prior art keywords
- seat
- cover
- bellows
- perforations
- air
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/54—Inflatable chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
- A47C7/742—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling
Definitions
- This disclosure relates to a vehicle seat comprising a cover fitted over a resilient filling carried by a rigid frame.
- the cover is of synthetic plastics material and has small perforations through it, some of which are in communication with small bellows pump devices which force air through the perforations, the pumping action of the device being brought about by vibrations and other similar movements occurring during motion of the vehicle and/or by body movements of a person sitting on the seat.
- This invention relates to improvements in vehicle seats and in particular car seats.
- Modern car seats are generally made by covering a resilient filling which may include springs and/ or resilient foam material with a cover of synthetic thermoplastics material such as polyvinyl chloride.
- This cover can be shaped by stitching together a large number of flat pieces of polyvinyl chloride sheet, the whole cover can be formed in one piece in the manner described in our United Kingdom specification No. 1,023,880, or the cover can be vacuum formed from a single piece of thermoplastics material.
- a vehicle seat comprising a resilient filling covered by a cover of synthetic thermoplastics material which has a large number of small perforations therethrough, and pump means operated by the vibrations and similar movements occurring during motion of the vehicle and/or by body movements e.g. stretching, of a person sitting on the seat which provide a supply of air which is expelled through at least some of the perforations.
- the pump means are very simple and are constituted by at least a part of the seat itself.
- a number of small bellows are included in the body of the seat, these bellows having inlets from the under- 3,506,308 Patented Apr. 14, 1970 side of the seat, and outlets which communicates with one or more perforations in the seat, the bellow providing a pump action when compressed by vibrations of the vehicle or body movements of the person sitting on the seat.
- the volume of the pump that is to say, the volume of the open-celled foam pad or the bellows is relatively small so that changes in volume will give relatively large pressure changes.
- FIGURE 1 is a cross-section through the seat
- FIGURE 2 is an enlarged cut-away view
- FIGURE 3 is a section through one of the bellows incorporated in the seat.
- the vehicle seat 10 comprises a seat portion 12 and a back rest 14. Both the seat portion and the back rest have covers 16 and 18, respectively, of synthetic thermoplastic material such as polyvinyl chloride.
- the covers 16 and 18 surround rigid frames (not shown) upon which is supported resilient filling material 20.
- the seat 10 assembles a conventional seat.
- the resilient filling material has embedded in it a number of small cylindrical bellows 56 and each of these has an outlet connected to one or more perforations 58 in the cover.
- Each bellows 56 comprises a thin flexible plastics material tube '60 joined by for example welding at its ends to circular end plates 62 and 64.
- the tube 60 contains a coil spring 66.
- the upper and lower plates 62 and 64 have apertures 68 and 70 through them and the lower plate 64 has a one-way flap valve 72 over its aperture this valve consisting of a small piece of flexible resistant material a small part of which is stuck to the plate 64, so that the valve 72 can be raised by the air when air is sucked into the bellows and lays flat against the plate 64 at other times.
- each bellows can be distributed throughout the area of the seat or can solely be concentrated in the regions. Also each bellows may pump air through one or a number of perforations.
- the ventilation action of these bellows is preferably assisted by using as the cover 52 a material having a deep .emboss.
- perforations are connected with bellows 56, throughout the whole of the surface of the cover, and as an example there may be from about one to twenty-five perforations per square inch, such perforations being from about 4 to thousandths of an inch in diameter.
- a vehicle seat comprising:
- a seat according to claim 1 which the surface of of said perforations for forcing air through said said cover has been given a deep embossing. perforations, said pump means comprising a number of bellows units which are positioned in said resilient References Cited fillin each of which com rises a resilient tube, a coil ompression spring wiFhin said tube end plates 5 UNITED STATES PATENTS fixed at either end of said tube, an inlet aperture 2'012O42 8/1935 G?rlofson et 297453 X through one end plate, a one-way flap valve for said 12/1961 Wllfert 297453 X inlet aperture, and an outlet aperture through said 4 7/1962 ErFnberg et 5351 other end plate in communication with at least one 10 3133696 5/1964 M f X perforation through said cover, said bellows units be- 3144270 8/1964 Bllancla 297453 X ing alternately compressed or expanded by
Description
s. D. FENTON 3,506,308
April 14, 1970 CAR SEATS 2 Sheets-Sheet 1 Filed Dec. '7, 1967 gbefv W Allorne S. D. FENTON April 14, 1970 CAR SEATS 2 Sheets-Sheet 2 Filed Dec. '7, 1967 United States Pat ent 3,506,308 CAR SEATS Sidney Desmond Fenton, Lancaster, England, assignor to Storey Brothers and Company Limited, Lancaster, England, a British company Filed Dec. 7, 1967, Ser. No. 692,624 Claims priority, application Great Britain, Dec. 15, 1966, 56,310/ 66 Int. Cl. A47c 7/02 US. Cl. 297-453 2 Claims ABSTRACT OF THE DISCLOSURE This disclosure relates to a vehicle seat comprising a cover fitted over a resilient filling carried by a rigid frame. The cover is of synthetic plastics material and has small perforations through it, some of which are in communication with small bellows pump devices which force air through the perforations, the pumping action of the device being brought about by vibrations and other similar movements occurring during motion of the vehicle and/or by body movements of a person sitting on the seat.
This invention relates to improvements in vehicle seats and in particular car seats.
Modern car seats are generally made by covering a resilient filling which may include springs and/ or resilient foam material with a cover of synthetic thermoplastics material such as polyvinyl chloride. This cover can be shaped by stitching together a large number of flat pieces of polyvinyl chloride sheet, the whole cover can be formed in one piece in the manner described in our United Kingdom specification No. 1,023,880, or the cover can be vacuum formed from a single piece of thermoplastics material.
The advantage of using synthetic material for the cover in place of the traditional leather is the relative cheapness of the synthetic material. By careful manufacture it can be made to simulate natural leather to a large degree, but there is always the problem that the synthetic material is impervious to moisture and air and so the synthetic material feels dilferent and is readily distinguished from natural leather by the person sitting on it.
This difliculty can to a large extent be overcome by making a multitude of small perforations through the synthetic material and also by giving its surface a deep embossing. These expedients provide some degree of ventilation of the surface even where it is in contact with the human body.
These solutions do not, however, completely overcome the problem which is still acute when the seats are used in tropical countries, and the invention has been made with this problem in mind.
According to the invention there is provided a vehicle seat comprising a resilient filling covered by a cover of synthetic thermoplastics material which has a large number of small perforations therethrough, and pump means operated by the vibrations and similar movements occurring during motion of the vehicle and/or by body movements e.g. stretching, of a person sitting on the seat which provide a supply of air which is expelled through at least some of the perforations.
This suply of air is found to keep the cover cool and removes perspiration which might otherwise remain on the surface of the cover, and we find such seats have a closer simulation to leather covered seats than those not provided with this air supply.
The pump means, however, are very simple and are constituted by at least a part of the seat itself.
A number of small bellows are included in the body of the seat, these bellows having inlets from the under- 3,506,308 Patented Apr. 14, 1970 side of the seat, and outlets which communicates with one or more perforations in the seat, the bellow providing a pump action when compressed by vibrations of the vehicle or body movements of the person sitting on the seat.
Preferably the volume of the pump, that is to say, the volume of the open-celled foam pad or the bellows is relatively small so that changes in volume will give relatively large pressure changes.
An example of a seat constructed in accordance with the invention is shown in the accompanying diagrammatic drawings, in which:
FIGURE 1 is a cross-section through the seat;
FIGURE 2 is an enlarged cut-away view; and
FIGURE 3 is a section through one of the bellows incorporated in the seat.
The vehicle seat 10 comprises a seat portion 12 and a back rest 14. Both the seat portion and the back rest have covers 16 and 18, respectively, of synthetic thermoplastic material such as polyvinyl chloride.
The covers 16 and 18 surround rigid frames (not shown) upon which is supported resilient filling material 20. In these respects the seat 10 assembles a conventional seat.
In the regions 22 of the seat portion and 24 of the back rest, which are in close contact with the body of a person sitting on the seat, the resilient filling material has embedded in it a number of small cylindrical bellows 56 and each of these has an outlet connected to one or more perforations 58 in the cover.
Each bellows 56 comprises a thin flexible plastics material tube '60 joined by for example welding at its ends to circular end plates 62 and 64. The tube 60 contains a coil spring 66. The upper and lower plates 62 and 64 have apertures 68 and 70 through them and the lower plate 64 has a one-way flap valve 72 over its aperture this valve consisting of a small piece of flexible resistant material a small part of which is stuck to the plate 64, so that the valve 72 can be raised by the air when air is sucked into the bellows and lays flat against the plate 64 at other times.
During a journey, the normal movement of a person on the seat coupled with the vibrations of the vehicle, cause the bellows 56 to be alternately extended and compressed. This causes air to enter the tube 60 through either or both apertures 68 and 70 when the bellows extend, and air to be expelled under pressure through the aperture 68, and not the aperture 70 because the flap valve 72 shuts, when the bellows is compressed. Consequently air is expelled through the perforation 58.
The bellows can be distributed throughout the area of the seat or can solely be concentrated in the regions. Also each bellows may pump air through one or a number of perforations.
The ventilation action of these bellows is preferably assisted by using as the cover 52 a material having a deep .emboss.
Naturally not very perforation in the cover 52 or covers 16 and 18 need have air expelled through it; some of the perforations can simply be perforations through the cover. Preferably there are perforations, not all of which are connected with bellows 56, throughout the whole of the surface of the cover, and as an example there may be from about one to twenty-five perforations per square inch, such perforations being from about 4 to thousandths of an inch in diameter.
I claim:
1. A vehicle seat comprising:
(a) a resilient filling,
(b) a cover of synthetic thermoplastic material having small perforations therethrough, said cover being positioned over said filling,
(0) pump means in communication with at least some 2. A seat according to claim 1 which the surface of of said perforations for forcing air through said said cover has been given a deep embossing. perforations, said pump means comprising a number of bellows units which are positioned in said resilient References Cited fillin each of which com rises a resilient tube, a coil ompression spring wiFhin said tube end plates 5 UNITED STATES PATENTS fixed at either end of said tube, an inlet aperture 2'012O42 8/1935 G?rlofson et 297453 X through one end plate, a one-way flap valve for said 12/1961 Wllfert 297453 X inlet aperture, and an outlet aperture through said 4 7/1962 ErFnberg et 5351 other end plate in communication with at least one 10 3133696 5/1964 M f X perforation through said cover, said bellows units be- 3144270 8/1964 Bllancla 297453 X ing alternately compressed or expanded by move- 3261037 7/1966 Cerfnak et a1 5351 X ments of a person sitting on said seat including body 3,262,138 7/1966 Kmttel 5 351 X stretching movements and movements due to uneven- 3331089 7/1967 Omas et ness in the road over which said vehicle is travelling, 15 said movements forcing air through at least some of CASMIR NUNBERG Pnmary Examiner said perforations.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5631066 | 1966-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3506308A true US3506308A (en) | 1970-04-14 |
Family
ID=10476308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US692624A Expired - Lifetime US3506308A (en) | 1966-12-15 | 1967-12-07 | Car seats |
Country Status (5)
Country | Link |
---|---|
US (1) | US3506308A (en) |
DE (1) | DE1655245A1 (en) |
FR (1) | FR1548911A (en) |
GB (1) | GB1196250A (en) |
NL (1) | NL6716904A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736022A (en) * | 1971-07-26 | 1973-05-29 | Oil Products Co | Molded seat cushion with cast skin and insert receiving recess |
US3770318A (en) * | 1971-07-29 | 1973-11-06 | Storey Brothers & Co | Vehicle seats |
US3813148A (en) * | 1972-04-17 | 1974-05-28 | H Kraus | Adjustable back support |
US4043544A (en) * | 1975-03-08 | 1977-08-23 | Walter Ismer | Reinforced and ventilated seats |
US4629253A (en) * | 1986-01-15 | 1986-12-16 | Williams Theodore M | Seat occupant-activated underseat support air-cushion |
WO1999050090A1 (en) * | 1998-04-01 | 1999-10-07 | Johnson Controls Gmbh | Seat cushion for vehicle seats |
US6109688A (en) * | 1996-06-07 | 2000-08-29 | Dieter Wurz | Seat, squab or couch upholstery |
US6277023B1 (en) * | 1998-10-07 | 2001-08-21 | Faurecia Autositz Gmbh & Co. Kg | Motor vehicle seat with ventilation device |
US6578910B2 (en) | 2000-03-02 | 2003-06-17 | Lear Corporation | Ventilation seat |
US20040104607A1 (en) * | 2002-08-15 | 2004-06-03 | Nhk Spring Co., Ltd. | Breathable seat |
US20040189061A1 (en) * | 2001-07-28 | 2004-09-30 | Dirk Hartwich | Air-conditioned upholstered element for the seat of a motor vehicle |
US20050082885A1 (en) * | 2001-12-19 | 2005-04-21 | Jan Thunissen | Ventilation system for an upholstery part |
WO2005042301A1 (en) * | 2003-10-28 | 2005-05-12 | Daimlerchrysler Ag | Series of components for a vehicle seat |
US20050173950A1 (en) * | 2003-12-01 | 2005-08-11 | W.E.T. Automotive System Ag | Valve layer for a seat |
US20060290175A1 (en) * | 2003-04-08 | 2006-12-28 | Johnson Controls Gmbh | Vehicle seat |
US7229129B2 (en) | 2001-01-05 | 2007-06-12 | Johnson Controls Technology Company | Ventilated seat |
US20100171348A1 (en) * | 2006-12-14 | 2010-07-08 | Arjuna Indraesewaran Rajasingham | Occupant support system |
US20110204604A1 (en) * | 2010-02-24 | 2011-08-25 | Ts Tech Co., Ltd. | Vehicle seat |
CN102791169A (en) * | 2009-11-16 | 2012-11-21 | 江森自控科技公司 | Seat cushion structure |
WO2014085907A1 (en) * | 2012-12-05 | 2014-06-12 | Proprietect L.P. | Ventilated seat element |
US20150165946A1 (en) * | 2012-06-29 | 2015-06-18 | Tachi-S Co., Ltd. | Vehicle seat |
US9403460B2 (en) | 2014-02-06 | 2016-08-02 | Ford Global Technologies, Llc | Vehicle seating assembly having a climate controlled seat utilizing a plenum volume and flexible hoses |
US20200037767A1 (en) * | 2018-07-31 | 2020-02-06 | Yat Man CHAN | Smart office chair with a ventilation function |
US11110773B2 (en) * | 2016-12-08 | 2021-09-07 | Denso Corporation | Seat air-conditioning device |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS584646B2 (en) * | 1979-01-31 | 1983-01-27 | 日産自動車株式会社 | Forced ventilation device for automobile seats |
DE3218524C2 (en) * | 1982-05-07 | 1986-07-17 | Lück, Werner, 4290 Bocholt | Vehicle seat |
FR2543419B1 (en) * | 1983-03-31 | 1988-09-02 | Roth Sa Freres | IMPROVED HYGRO-THERMAL COMFORT SEAT |
AU592592B2 (en) * | 1986-09-15 | 1990-01-18 | Tachi-S Co., Ltd. | Vehicle seat |
JPS6393859U (en) * | 1986-12-05 | 1988-06-17 | ||
US4865379A (en) * | 1988-02-04 | 1989-09-12 | Tachi-S Co., Ltd. | Automotive seat with heating device |
JPH0233662U (en) * | 1988-08-27 | 1990-03-02 | ||
DE4113850A1 (en) * | 1991-04-27 | 1992-10-29 | Paulisch Gmbh & Co Kg | Sprung support for upholstered furniture seat - is for public transport, and has rows of coil springs in holes in foam block, with metal or plastics baseplate |
DE202011101148U1 (en) * | 2011-05-27 | 2012-08-30 | Area Consult S.R.O. | Device for forced ventilation of a seat |
CN208388264U (en) * | 2017-12-05 | 2019-01-18 | 广州博兰士坦展览器材有限公司 | A kind of inflatable seat |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2012042A (en) * | 1932-07-23 | 1935-08-20 | Gerlofson Carl Hugo | Cushion |
US3014226A (en) * | 1957-11-29 | 1961-12-26 | Daimler Benz Ag | Upholstery of seats, particularly for motor vehicles |
US3046574A (en) * | 1959-12-23 | 1962-07-31 | Superior Bedding Company | Mattress construction |
US3133696A (en) * | 1962-02-19 | 1964-05-19 | Holiday Line Inc | Pump |
US3144270A (en) * | 1961-11-01 | 1964-08-11 | Coach & Car Equipment Corp | Ventilated vehicle seat |
US3261037A (en) * | 1963-06-03 | 1966-07-19 | Union Carbide Corp | Molded body support |
US3262138A (en) * | 1964-03-03 | 1966-07-26 | Union Carbide Corp | Double-tapered spring assembly |
US3331089A (en) * | 1965-04-14 | 1967-07-18 | Int Harvester Co | Seat construction |
-
1966
- 1966-12-15 GB GB56310/65A patent/GB1196250A/en not_active Expired
-
1967
- 1967-12-07 US US692624A patent/US3506308A/en not_active Expired - Lifetime
- 1967-12-08 DE DE19671655245 patent/DE1655245A1/en active Pending
- 1967-12-12 NL NL6716904A patent/NL6716904A/xx unknown
- 1967-12-15 FR FR1548911D patent/FR1548911A/fr not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2012042A (en) * | 1932-07-23 | 1935-08-20 | Gerlofson Carl Hugo | Cushion |
US3014226A (en) * | 1957-11-29 | 1961-12-26 | Daimler Benz Ag | Upholstery of seats, particularly for motor vehicles |
US3046574A (en) * | 1959-12-23 | 1962-07-31 | Superior Bedding Company | Mattress construction |
US3144270A (en) * | 1961-11-01 | 1964-08-11 | Coach & Car Equipment Corp | Ventilated vehicle seat |
US3133696A (en) * | 1962-02-19 | 1964-05-19 | Holiday Line Inc | Pump |
US3261037A (en) * | 1963-06-03 | 1966-07-19 | Union Carbide Corp | Molded body support |
US3262138A (en) * | 1964-03-03 | 1966-07-26 | Union Carbide Corp | Double-tapered spring assembly |
US3331089A (en) * | 1965-04-14 | 1967-07-18 | Int Harvester Co | Seat construction |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736022A (en) * | 1971-07-26 | 1973-05-29 | Oil Products Co | Molded seat cushion with cast skin and insert receiving recess |
US3770318A (en) * | 1971-07-29 | 1973-11-06 | Storey Brothers & Co | Vehicle seats |
US3813148A (en) * | 1972-04-17 | 1974-05-28 | H Kraus | Adjustable back support |
US4043544A (en) * | 1975-03-08 | 1977-08-23 | Walter Ismer | Reinforced and ventilated seats |
US4629253A (en) * | 1986-01-15 | 1986-12-16 | Williams Theodore M | Seat occupant-activated underseat support air-cushion |
US6109688A (en) * | 1996-06-07 | 2000-08-29 | Dieter Wurz | Seat, squab or couch upholstery |
US6546578B1 (en) | 1998-04-01 | 2003-04-15 | Johnson Controls Technology Company | Seat cushion for vehicle seats |
WO1999050090A1 (en) * | 1998-04-01 | 1999-10-07 | Johnson Controls Gmbh | Seat cushion for vehicle seats |
US6277023B1 (en) * | 1998-10-07 | 2001-08-21 | Faurecia Autositz Gmbh & Co. Kg | Motor vehicle seat with ventilation device |
US6578910B2 (en) | 2000-03-02 | 2003-06-17 | Lear Corporation | Ventilation seat |
US7229129B2 (en) | 2001-01-05 | 2007-06-12 | Johnson Controls Technology Company | Ventilated seat |
US20040189061A1 (en) * | 2001-07-28 | 2004-09-30 | Dirk Hartwich | Air-conditioned upholstered element for the seat of a motor vehicle |
US7108319B2 (en) * | 2001-07-28 | 2006-09-19 | Johnson Controls Gmbh | Air conditioned cushion part for a vehicle seat |
US20050082885A1 (en) * | 2001-12-19 | 2005-04-21 | Jan Thunissen | Ventilation system for an upholstery part |
US7261371B2 (en) | 2001-12-19 | 2007-08-28 | Johnson Controls Gmbh | Ventilation system for an upholstery part |
US20040104607A1 (en) * | 2002-08-15 | 2004-06-03 | Nhk Spring Co., Ltd. | Breathable seat |
US7070232B2 (en) * | 2002-08-15 | 2006-07-04 | Nhk Spring Co., Ltd. | Breathable seat |
US7467823B2 (en) | 2003-04-08 | 2008-12-23 | Johnson Controls Gmbh | Vehicle seat |
US20060290175A1 (en) * | 2003-04-08 | 2006-12-28 | Johnson Controls Gmbh | Vehicle seat |
WO2005042301A1 (en) * | 2003-10-28 | 2005-05-12 | Daimlerchrysler Ag | Series of components for a vehicle seat |
US20070120401A1 (en) * | 2003-10-28 | 2007-05-31 | Daimlerchrysler Ag | Series of components for a vehicle seat |
US20120169094A1 (en) * | 2003-12-01 | 2012-07-05 | W.E.T. Automotive Systems Ag | Valve layer for a seat |
US20050173950A1 (en) * | 2003-12-01 | 2005-08-11 | W.E.T. Automotive System Ag | Valve layer for a seat |
US7461892B2 (en) * | 2003-12-01 | 2008-12-09 | W.E.T. Automotive Systems, A.C. | Valve layer for a seat |
US20090284052A1 (en) * | 2003-12-01 | 2009-11-19 | W.E.T. Automotive Systems Ag | Valve layer for a seat |
US20100253117A1 (en) * | 2003-12-01 | 2010-10-07 | W.E.T. Automotive Systems Ag | Valve layer for a seat |
US7832798B2 (en) * | 2003-12-01 | 2010-11-16 | W.E.T. Automotive Systems Ag | Valve layer for a seat |
US7918498B2 (en) * | 2003-12-01 | 2011-04-05 | W.E.T. Automotive Systems Ag | Valve layer for a seat |
US8235462B2 (en) * | 2003-12-01 | 2012-08-07 | W.E.T. Automotive Systems, Ltd. | Valve layer for a seat |
US20100171348A1 (en) * | 2006-12-14 | 2010-07-08 | Arjuna Indraesewaran Rajasingham | Occupant support system |
US8864229B2 (en) * | 2006-12-14 | 2014-10-21 | Arjuna Indraesewaran Rajasingham | Occupant support system |
US9211827B2 (en) * | 2009-11-16 | 2015-12-15 | Johnson Controls Technology Company | Seat cushion structure |
CN102791169A (en) * | 2009-11-16 | 2012-11-21 | 江森自控科技公司 | Seat cushion structure |
US20120313409A1 (en) * | 2009-11-16 | 2012-12-13 | Johnson Controls Technology | Seat cushion structure |
CN102791169B (en) * | 2009-11-16 | 2016-07-13 | 江森自控科技公司 | Seat cushion structure |
US8408592B2 (en) * | 2010-02-24 | 2013-04-02 | Ts Tech Co., Ltd. | Vehicle seat |
US20110204604A1 (en) * | 2010-02-24 | 2011-08-25 | Ts Tech Co., Ltd. | Vehicle seat |
US20150165946A1 (en) * | 2012-06-29 | 2015-06-18 | Tachi-S Co., Ltd. | Vehicle seat |
US9751439B2 (en) * | 2012-06-29 | 2017-09-05 | Tachi-S Co., Ltd. | Vehicle seat |
WO2014085907A1 (en) * | 2012-12-05 | 2014-06-12 | Proprietect L.P. | Ventilated seat element |
US10493879B2 (en) | 2012-12-05 | 2019-12-03 | Proprietect L.P. | Ventilated seat element |
US9403460B2 (en) | 2014-02-06 | 2016-08-02 | Ford Global Technologies, Llc | Vehicle seating assembly having a climate controlled seat utilizing a plenum volume and flexible hoses |
US11110773B2 (en) * | 2016-12-08 | 2021-09-07 | Denso Corporation | Seat air-conditioning device |
US20200037767A1 (en) * | 2018-07-31 | 2020-02-06 | Yat Man CHAN | Smart office chair with a ventilation function |
Also Published As
Publication number | Publication date |
---|---|
DE1655245A1 (en) | 1971-07-22 |
NL6716904A (en) | 1968-06-17 |
FR1548911A (en) | 1968-12-06 |
GB1196250A (en) | 1970-06-24 |
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