Including A Ventilating Means Patents (Class 297/452.42)
  • Publication number: 20090108651
    Abstract: Disclosed is a health-promoting chair having aromatic compound which can be freely replaced. The health-promoting chair has an insertion and separation space 1 at a center portion of a seat of a chair and an auxiliary cushion 10 having a structure in which an aromatic compound pack 9 can be inserted thereinto and separated therefrom using an opening and closing means 5. Further, aromatic material in the aromatic compound pack can be freely replaced according to user's desire. Still further, if needed, the auxiliary cushion can be separated from the chair and then used alone or in combination with other furniture goods at other locations. The auxiliary cushion can be used in combination with a variety of types of lower fixing means such as air bag type, screw type and rope type in order to adjust height thereof. The installation method is not limited according to form of a chair.
    Type: Application
    Filed: April 2, 2007
    Publication date: April 30, 2009
    Inventor: ChanIl Jang
  • Patent number: 7497513
    Abstract: The present invention discloses a buffer cushion for automobiles including: a main air chamber (2) having a size corresponding to the sizes of the automobile seats; an auxiliary air chamber (3) having a relatively smaller size than the main air chamber (2); an interconnecting chamber (4) formed integrally with the main air chamber (2) and auxiliary air chamber (3) for communicating the main air chamber (2) and the auxiliary air chamber 3 with each other to allow air injected into the buffer cushion to freely move between the main air chamber (2) and the auxiliary air chamber (3); and adjusting means (5) that is mounted on the auxiliary air chamber (3) for buffering the impact applied to the main air chamber (2) and adjusting a buffering force when the impact is applied to an automobile seat in upward and downward directions.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: March 3, 2009
    Inventor: Tae-Sook Kim
  • Patent number: 7478869
    Abstract: There is disclosed an insert suitable for use within a seating system of an automotive vehicle.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: January 20, 2009
    Assignee: W.E.T. Automotive Systems, AG
    Inventors: Marinko Lazanja, Goran Bajic, Ed Marlovits, Dmitri Axakov
  • Publication number: 20090015043
    Abstract: The vehicle seat comprises an air conditioning unit associated with the seat pan and/or the backrest. The air conditioning unit comprises a fan, a flow channel and an air distribution element arranged on the upper face of the seat pan and/or backrest upholstery and connected to the fan via the flow channel. A fan receptacle and the flow channel are molded into the seat pan and/or into the backrest.
    Type: Application
    Filed: June 12, 2008
    Publication date: January 15, 2009
    Applicant: Brose Farhzeugteile GmbH & Co. Kommanditgesellschaft, Coburg
    Inventors: Alwin Macht, Daniela Stegner, Steffen Brosius
  • Patent number: 7475938
    Abstract: An air conditioned seat with a padded seat surface (4) and a padded backrest (8) and with a fan (16) arranged beneath the seat surface (4). The fan (16) is connected to an air distribution apparatus (20, 22) in the seat, and includes a flow region (31) that is open to the environment. The flow region (31) is located substantially on the side of the fan (16) facing the seat surface (4). The fan inlet (30) is further environmentally protected by a diffuser (36) located in the flow region (31) and forming a slit opening (40) between a top edge (38) of the diffuser (36) and an underside (28) of the seat.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: January 13, 2009
    Assignee: W.E.T. Automotive Systems AG
    Inventors: Stefan Stoewe, Rainer Spee
  • Publication number: 20080246325
    Abstract: A vehicle seat (and a cushion for a vehicle seat) comprise an assembly of layers with at least one air-guiding layer. An outlet opening is provided in the region of the air-guiding layer and is arranged in such a manner that the discharging of warm and moist air causes dry and cool ambient air to automatically flow into the air-guiding layer.
    Type: Application
    Filed: January 21, 2006
    Publication date: October 9, 2008
    Applicant: DaimlerChrysler AG
    Inventors: Karl Pfahler, Manfred Ziemann
  • Publication number: 20080217967
    Abstract: There is disclosed a comfort system suitable for use in a seat of an automotive vehicle. The system preferably includes an air mover in fluid communication with an open space below a trim layer of the seat for providing ventilation, heating and/or cooling to the seat occupant.
    Type: Application
    Filed: October 31, 2007
    Publication date: September 11, 2008
    Inventors: Goran Bajic, Lindy Brennan, Scott Truant, Madalina Onica
  • Patent number: 7364229
    Abstract: An automatic ventilation device for chairs uses a movable plate that moves upwards and downwards along with a cushion. A reset spring is disposed on the movable plate. The upper side and lower side of movable plate each have a stretchable air bag. When the removable plate moves upwards and downwards, one air bag is extended while the other is compressed. The upper and lower air bags have one-way air inlets and outlets respectively while the air outlets are connected to the chair cushion and the chair back for blowing air to the chair cushion and chair back.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 29, 2008
    Inventor: Hwang-Pao Lee
  • Patent number: 7261371
    Abstract: A ventilation system comprises a seat, a first fan, and a second fan. The seat has an upholstery part that includes a shaped body. The shaped body has a bearing surface, a rear side opposite the bearing surface, a first opening extending generally from the bearing surface to the rear side, and a second opening. The first fan is coupled to the first opening and is configured to generate a first flow of air generally perpendicular to the bearing surface. The second fan is coupled to second opening and is configured to generate a second flow of air generally transverse to the first flow of air.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: August 28, 2007
    Assignee: Johnson Controls GmbH
    Inventors: Jan Thunissen, Alfred Scholl, Ming Huo
  • Patent number: 7201441
    Abstract: An air conditioned seat with a padded seat surface (4) and a padded backrest (8) and with a fan (16) arranged beneath the seat surface (4). The fan (16) is connected to an air distribution apparatus (20, 22) in the seat, and includes a flow region (31) that is open to the environment. The flow region (31) is located substantially on the side of the fan (16) facing the seat surface (4). The fan inlet (30) is further environmentally protected by a diffuser (36) located in the flow region (31) and forming a slit opening (40) between a top edge (38) of the diffuser (36) and an underside (28) of the seat.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 10, 2007
    Assignee: W.E.T. Automotive Systems, AG
    Inventors: Stefan Stoewe, Rainer Spee
  • Patent number: 7131689
    Abstract: There is disclosed an automotive vehicle seating comfort system for providing heating, cooling, ventilation or a combination thereof to an individual in an automotive car seat. The system typically includes an insert, a blower and a tubular structure for providing fluid communication between the insert and blower for providing ventilation and/or cooling for the individual. Preferably, the insert includes a heater or heater layer for providing heat for the individual.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: November 7, 2006
    Assignee: W.E.T. Automotive Systems, AG
    Inventors: Lindy Brennan, Goran Bajic, Lucas Fernandez, Valerija Drobnjakovic
  • Patent number: 7114771
    Abstract: A vehicle seat has a seat bottom and seat back. The seat bottom can have a ventilated insert located between the seat upholstery and the seat cushion. The insert can be in fluid communication with the cabin space of the vehicle. In one arrangement, the insert has a cover with holes and a body. The cover and body cooperate to form a plurality of plenums for passing air through the insert. A fluid system can deliver air to the insert so that the air passes through the plenums and directed out of the holes in the cover. The air then flows out of the vehicle seat to control the climate around the person in the seat. The insert can also be used to remove air near the seat by drawing air proximate the seat into the insert. The air can then pass through the insert and is delivered to the fluid system.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: October 3, 2006
    Assignee: Amerigon, Inc.
    Inventors: John Lofy, Todd Jackson, John Terech
  • Patent number: 7083227
    Abstract: There is disclosed an automotive vehicle seating comfort system for providing heating, cooling, ventilation or a combination thereof to an individual in an automotive car seat. The system typically includes an insert, a blower and a tubular structure for providing fluid communication between the insert and blower for providing ventilation and/or cooling for the individual. Preferably, the insert includes a heater or heater layer for providing heat for the individual.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: August 1, 2006
    Assignee: W.E.T. Automotive Systems, AG
    Inventors: Lindy Brennan, Goran Bajic, Lucas Fernandez, Valerija Drobnjakovic
  • Patent number: 7083236
    Abstract: A vehicle seat cushion assembly for providing additional comfort and support while facilitating air flow around and through the seat cushion assembly includes upper and lower sections pivotally coupled to each other for facilitating storage. The upper and lower sections are each formed by coupling two layers of grid-like material to each other in generally parallel spaced relationship to permit air to flow freely through the invention during use.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: August 1, 2006
    Inventor: Gloria Smith
  • Patent number: 7055900
    Abstract: A ventilated support structure for a vehicle, such as a bicycle, comprises a seat surface supported on a rigid or semi-rigid frame. The seat surface having a slot extending along the top surface of the support structure. The slot has at least one opening disposed therein. The support structure further comprises an air intake component positioned at the anterior of the support structure. The air intake component may be oriented at least partly in a direction of forward travel of the vehicle. A channel communicates the air intake component with the at least one opening in the slot so that air enters through the slot via the air intake component.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 6, 2006
    Assignee: Selle Royal S.p.A.
    Inventors: Massimo Losio, Thomas Overthun, Christopher Cowart
  • Patent number: 7040707
    Abstract: A seat back of automotive seat, which comprises an upper seat back portion and a lower seat back portion. A foam padding of the upper seat back portion is greater in hardness than that of the lower seat back portion. A vent element is provided in each of the two seat back portions. The vent element may include a through-hole or a recessed portion, and/or a netted element provided on the lower seat back portion. The upper seat back portion is fixedly connected with the lower seat back portion in an integral manner by means of a connecting element disposed within both of those two seat back portions.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: May 9, 2006
    Assignee: Tachi-S Co., Ltd.
    Inventor: Shigeru Nakahara
  • Patent number: 7040710
    Abstract: A ventilated vehicle seat includes a bag formed from impermeable materials enclosing a spacer material. The latter preferably includes upper and lower netting sheets and fibers extending between the netting sheets, the fibers being sufficiently resilient to prevent total collapse of the spacer material when the seat is occupied. An air mover forces air into or draws air from the bag is coupled to the air space between the air impermeable layers. Holes are provided in the top of the bag, and the sizes are preferably selected to equalize air flow over the seating surface, rather than having all the air flow through the openings nearest the fan. An optional, porous heating layer may be located above the bag. The ventilation and trim components are preferably sewn into the seat in a single operation.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: May 9, 2006
    Assignee: Johnson Controls Technology Company
    Inventors: Brennon L. White, Mary J. Lumbard, Anne P. Liss, William G. Reed
  • Patent number: 7028493
    Abstract: In a vehicle air conditioner, a front air conditioning unit and a seat air conditioning unit are automatically controlled by an air conditioner ECU. If a seat air conditioner switch is operated by a user during an automatic control, the setting (e.g. air volume of a seat blower) of the seat air conditioning switch is learned. Based on the learning, a seat blower characteristic diagram, which is stored in a ROM, is changed. Therefore, from this time onward, under the same environmental condition, the seat blower air volume is determined based on the changed seat blower characteristic diagram. Accordingly, a seat air conditioning is provided as desired.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: April 18, 2006
    Assignee: DENSO Corporation
    Inventors: Hiroyuki Tomita, Toshifumi Kamiya
  • Patent number: 6997517
    Abstract: A snowmobile seat having a ventilation system for allowing moisture that enters the cushion portion of the seat to be wicked away through a base section that is disposed between the tunnel of the snowmobile and the cushion. The base section provides ventilation spaces between the base section and tunnel and has ventilation holes there through that allow the moisture to be drawn away from the cushion. Grooves formed in the underside of the cushion and channels formed in the top side of the base section also help promote this process.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: February 14, 2006
    Assignee: Polaris Industries Inc.
    Inventors: Nick Schrapp, Jason Eichenberger
  • Patent number: 6976734
    Abstract: A vehicle seat with a backrest (16) that has a backrest cushion (18) and a rear backrest cover (20), and an air-handling device that is associated with the backrest (16) and is connected to an air distribution device (30, 32) in the seat. The rear backrest cover (20) is at least partially air permeable, and covers at least one passage (27) of the air-handling device (23). The air exchanged between the environment and the air-handling device (23) passes for the most part through the air-permeable regions of the backrest cover (20).
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: December 20, 2005
    Assignee: W.E.T. Automotive Systems AG
    Inventor: Stefan Stoewe
  • Patent number: 6928829
    Abstract: In a seat air conditioning unit for a vehicle seat constructed with a seat cushion and a seat back, when a seat air conditioning operation is performed in a cooling operation of a passenger compartment, a cooling capacity of cool air blown from the seat back is set smaller than a cooling capacity of cool air blown from these at cushion while a passenger sits on the vehicle seat. Further, the cooling capacity of cool air blown from a lower portion of the seat back can be set smaller than the cooling capacity of an upper portion of the seat back. Accordingly, even when the cooling operation is continued for a long time while the seat air conditioning operation is performed, the waist portion of the passenger can be prevented from being excessively cooled.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: August 16, 2005
    Assignee: Denso Corporation
    Inventors: Toshifumi Kamiya, Shinji Aoki
  • Patent number: 6817675
    Abstract: A motor vehicle seat includes padding which is assigned to a backrest or a seat cushion and includes a lower padding part, a ventilation layer which rests on the lower padding part and through which air may flow, and an air-permeable, upper padding layer arranged above the latter, the padding covered by upholstery and provided with stitching along which the upholstery is connected to the upper padding layer via fastening device(s), and the ventilation layer extending into side parts of the padding and having a virtually unchanged thickness in the region of the stitching. The upholstery and the upper padding layer are fastened to the lower padding part along the stitching via the fastening device(s) bridging the ventilation layer.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 16, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Henning Buss, Karl-Heinz Minuth, Karl Pfahler, Lothar Renner
  • Patent number: 6786541
    Abstract: A ventilated vehicle seat includes an imperforate foam air plenum member located in a foam cushion top. The air plenum member is assembled from a molded box-like foam member and an integrally molded cover. The air plenum has an air port for application of positive or negative pressure. The cover has apertures for air to pass into or out of the air plenum member. One preferred embodiment of the air plenum member includes an integrally molded portion that is assembled into an air conduit for said air port. The cover can have various sizes that are larger than the box-like member and can have inner and outer surface conformations to suit various purposes.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: September 7, 2004
    Assignee: Johnson Controls Technology Company
    Inventors: Gregary A. Haupt, Jeff Montgomery, Gary Reynolds, Hilding Holcombe
  • Patent number: 6761399
    Abstract: In a motor vehicle seat for an open motor vehicle, with an air supply device integrated in its backrest and/or head restraint, the device including an air outlet duct having an outlet opening arranged on the front side of the head restraint, for supplying the head, neck and shoulder region of the vehicle occupant with hot air, and an air inlet duct having an inlet opening, with a heating element being assigned to the air supply device. The inlet opening of the air supply device is arranged on the rear side of the backrest or of the head restraint and approximately level with or above a rear end wall edge of the motor vehicle.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: July 13, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Claudio Bargheer, Karl Pfahler, Lothar Renner
  • Publication number: 20040090106
    Abstract: [Problems] An object of the invention is to provide a cushion body of a seat cushion that can be easily reinforced in low cost, to provide a method for manufacturing such a cushion body and to provide an apparatus for manufacturing such a cushion body.
    Type: Application
    Filed: September 9, 2003
    Publication date: May 13, 2004
    Inventor: Yasumasa Senoo
  • Patent number: 6726285
    Abstract: An improved method of constructing seating surfaces, provides greater comfort through superior surface adjustments for a variety of users. The seating structure provides greater airflow to contact areas of the occupant's body, and is more efficient and economical to produce. The seating surface construction is comprised of a plurality of support sections, or bosses/platforms and of a plurality of web connectors interconnecting the support sections. The support sections, or bosses/platforms are more rigid than their corresponding web connectors.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: April 27, 2004
    Assignee: Herman Miller, Inc.
    Inventors: Jerome Carmel Caruso, Steven Jerome Caruso
  • Publication number: 20040046437
    Abstract: A ventilated vehicle seat includes a bag formed from impermeable materials enclosing a spacer material. The latter preferably includes upper and lower netting sheets and fibers extending between the netting sheets, the fibers being sufficiently resilient to prevent total collapse of the spacer material when the seat is occupied. An air mover that forces air into or draws air from the bag may be coupled to the air space between the air impermeable layers of the bag. Groups of holes are provided in the top of the bag, and the total cross-sectional areas of the groups of holes are preferably selected to equalize air flow over the seating surface, rather than having all the air flow through the holes nearest the fan. An optional, porous heating layer may be located above the bag.
    Type: Application
    Filed: September 11, 2003
    Publication date: March 11, 2004
    Applicant: Johnson Controls Technology Company
    Inventors: Brennon L. White, Mary J. Lumbard, Anne P. Liss, William G. Reed
  • Patent number: 6687933
    Abstract: A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation, and which can provide energy dissipation capabilities. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a particular environment of use. The energy dissipation characteristics are provided by a flexible fluid compartment containing a volume of viscous fluid, such that at least a portion of the fluid moves within the compartment in response to a vertical force on the compartment.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: February 10, 2004
    Assignee: Hon Technology, Inc.
    Inventors: Amin K. Habboub, Marcus C. Koepke, Matthew J. Phillips
  • Patent number: 6677026
    Abstract: A resilient cushion includes a base sheet and a cover sheet sealed to the base sheet along spaced apart strips to form a matrix of sac like areas therebetween. A gel fills each of the sac like areas and a plurality of openings through the base and cover sheets along the strips are provided for enabling the passage of a fluid therethrough. The resilient cushion may include sac like areas disposed on both sides of a base layer and the use of gels of different resiliency may be utilized to provide a tailoring of overall cushioning resiliency.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 13, 2004
    Inventor: Paul M. Yates
  • Patent number: 6629728
    Abstract: A ventilated support structure for a vehicle, such as a bicycle, comprising an upper side having a seat surface which is supported on a rigid or semi-rigid frame on which is anchored elastically flexible padding there between. The support structure may further comprise an aperture in an anterior portion of the frame. The aperture may be oriented at least partly in a direction of forward travel of the vehicle. An air distribution channel is connected to the aperture and is also connected to a plurality of air discharge openings to ventilate the seat surface.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: October 7, 2003
    Assignee: Selle Royal, S.p.A.
    Inventors: Massimo Losio, Thomas Overthun, Christopher Cowart
  • Patent number: 6604785
    Abstract: A motor vehicle seat for an open-top motor vehicle has a seat cushion part and a backrest which is provided with a pertaining headrest. In an upper area of the backrest, for reducing undesirable draft phenomena for a seat occupant, at least one air outflow device which has an assigned air outflow nozzle of an air supply device is arranged. The air outflow device is vertically adjustable with respect to the backrest and can be secured in an adjusted vertical position.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 12, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Claudio Bargheer, Peter Nordberg, Vasilios Orizaris, Karl Pfahler, Lother Renner
  • Patent number: 6598251
    Abstract: A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a particular environment or use. In one embodiment, the body support system is a seat cushion comprising a foam layer with a central region, a plurality of spaced apart vertical foam columns that define a fluid reservoir in the central region, a plurality of fluid channels in the foam layer for communicating fluid in and out of the fluid reservoir, and an elastomeric layer having resilience and flow properties, such as a viscoelastic gel, positioned above the fluid reservoir.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 29, 2003
    Assignee: Hon Technology Inc.
    Inventors: Amin K. Habboub, Marcus C. Koepke, Matthew J. Phillips, Craig H. Schultz
  • Patent number: 6550866
    Abstract: A chair backrest comprises a frame, a support member, and a net. The frame is a loop-like member and includes a groove. The frame further includes an engaging portion to be securely connected to a seat of a chair. The support member is made of rigid material and mounted in the groove. The support member includes an engaging piece securely connected to the engaging portion of the frame. The net is made of soft material. The net encloses the frame and includes a peripheral edge mounted along an outer peripheral face of the frame.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: April 22, 2003
    Inventor: Tung-Hua Su
  • Publication number: 20020096931
    Abstract: A ventilated vehicle seat includes a bag formed from impermeable materials enclosing a spacer material. The latter preferably includes upper and lower netting sheets and fibers extending between the netting sheets, the fibers being sufficiently resilient to prevent total collapse of the spacer material when the seat is occupied. An air mover forces air into or draws air from the bag is coupled to the air space between the air impermeable layers. Holes are provided in the top of the bag, and the sizes are preferably selected to equalize air flow over the seating surface, rather than having all the air flow through the openings nearest the fan. An optional, porous heating layer may be located above the bag. The ventilation and trim components are preferably sewn into the seat in a single operation.
    Type: Application
    Filed: January 5, 2001
    Publication date: July 25, 2002
    Applicant: Johnson Controls Technology Company.
    Inventors: Brennon L. White, Mary J. Lumbard, Anne P. Liss, William G. Reed
  • Patent number: 6322139
    Abstract: A bicycle saddle includes a recessed portion in an upper side thereof, the recessed portion including a bottom having at least one opening. At least one guide plate is mounted in the bicycle saddle and includes an inlet that faces a front of the bicycle saddle. The guide plate and the bottom of the recessed portion of the bicycle saddle together defining a channel that communicates the inlet with the opening of the recessed portion of the bicycle saddle. A side vent is defined in each lateral side of the bicycle saddle. Thus, ambient air enters the recessed portion via the opening in the recessed portion and the side vents of the bicycle saddle during cycling to thereby provide a ventilation effect.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: November 27, 2001
    Inventor: Louis Chuang
  • Patent number: 6247751
    Abstract: The invention relates to a seat, particularly a vehicle seat, having a cushion support and a cushion which is supported on the cushion support. The cushion has a seat surface and an edge area surrounding this surface and is composed of a cubical cushion body which encompasses the seat surface and of a foamed-to-shape edge part which rests on the lateral surfaces of the cushion body and fills the edge area. This provides optimal seat pressure distribution and the air-conditioned sitting comfort, while reducing the required proportion of manual work. The cushion support, which accommodates the cushion body as well as the edge part, is constructed in an air-permeable manner and the other hand, the cushion body consists of an air-permeable nonwoven material, while the edge part is manufactured of polyurethane foam or another material having the same characteristics, and is connected with cushion body.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: June 19, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Eberhard Faust, Josef Klink, Karl Pfahler
  • Patent number: 6189966
    Abstract: A vehicle seat has a cushion integrated in a seat part and/or in a backrest. The cushion has a ventilation layer, through which air can flow, and an air-permeable cushion cover which spans the cushion surface. At least one electrically driven ventilator blows air into the ventilation layer. In order to optimize efficiency and rapidity of seat ventilation when cooling heated seat surfaces and achieve a compact seat construction without any space demands under the cushion of the seat part and behind the cushion of the backrest, the ventilator is constructed such that it takes air in axially and blows air out at least radially and is arranged in the ventilation layer itself. The intake opening of the ventilator is exposed on the side of the cushion facing away from the cushion cover.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: February 20, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Eberhard Faust, Karl Pfahler