Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7340813 | Chair upholstered with sports jersey An article of furniture, for example a chair, is upholstered with a sports jersey for displaying the jersey thereon. The front side and logo of the jersey are displayed on the back supporting surface of the chair while the rear side and player number of the jersey a... | 03/11/2008 |
| 7290837 | Cushion plate for vehicle seat A vehicle seat includes a seat back frame of a rectangular shape having a pair of side frames, upper and lower seat springs mounted between the side frames, and a flexible cushion plate in the form of a single plate attached to the seat springs. The cushion plate ha... | 11/06/2007 |
| 7290836 | Patient chair A back for a patient chair having a back shell with a substantially rigid central S-shaped central portion and laterally extending wing portions which have sufficient flexibility to allow deflection in the direction of the front surface upon imposition of a force. T... | 11/06/2007 |
| 7252341 | Vehicle seat, in particular a motor vehicle seat In the case of a vehicle seat, in particular a motor vehicle seat, with a seat part and a backrest as seat components, of which at least one seat component has a structure (11) and at least one adapter (15) arranged on the structure (11), the ad... | 08/07/2007 |
| 7249802 | Back support structure A tiltable chair including a housing, a back support pivotally attached to the housing about a first horizontal axis and a seat support pivotally attached to the back support about a second horizontal axis and moveably supported by a curved track formed on the housi... | 07/31/2007 |
| 7134729 | Frame assembly for vehicle passenger seat A frame assembly for vehicle passenger seat, including at least one leg unit, including a cantilevered transverse main beam carried by a fore and aft-extending seat leg for being mounted to the floor of the vehicle, a transversely extending front beam positioned for... | 11/14/2006 |
| 7131697 | Sports seat for a vehicle, especially for a motor vehicle In the case of a sports seat (101) for a vehicle, especially for a motor vehicle, having at least one rigid seat shell (103) as a structure for the seat part, and a separately formed, rigid backrest shell (105) as a structure for the backrest, t... | 11/07/2006 |
| 7131700 | Back construction for seating unit A back construction includes a back shell having stiff thoracic and pelvic regions connected by a flexible lumbar region in a manner adapted to ergonomically support a seated user. The back shell includes spaced-apart resilient edge strips and leaf springs attached ... | 11/07/2006 |
| 7128373 | Seating system and method of forming same The present invention discloses a seating system that includes a seat back (20) with one or more plastic panels (22, 24) that extend across a lateral distance (D2) of the seat back (20). The seat back (20) preferably includes o... | 10/31/2006 |
| 7040709 | Back construction for seating unit having inverted U-shaped frame A back construction includes an inverted U-shaped back frame and a back shell supported on the back frame and having stiff thoracic and pelvic regions connected by a flexible lumbar region in a manner adapted to ergonomically support a seated user. The lumber sectio... | 05/09/2006 |
| 7032967 | Structural foam and urethane composite for use in a motorcycle seat and method of manufacturing the same A seat for use with a cycle-type vehicle which includes a three-dimensional shaped insert constructed of a foam material. A structural foam backing is secured to a first surface of the foam material. One or more brackets are integrally formed with and extend from th... | 04/25/2006 |
| 7032971 | Seat backs The core (1) of a seat back, which will be upholstered to form the complete back, is a moulded plastics sheet bowed forwardly and with attachment points (12) near top and bottom for securing to a rigid support. The sheet is constructed to be stiffer ov... | 04/25/2006 |
| 6991291 | Back construction for seating unit having spring bias A back construction includes a back shell having stiff thoracic and pelvic regions connected by a flexible lumbar region in a manner adapted to ergonomically support a seated user. The back shell includes springs that press on a rear surface of the back shell to bia... | 01/31/2006 |
| 6918145 | Postcoital positioning pillow A pillow adapted to allow a female user to comfortably assume a postcoital position that will enhance the likelihood of becoming pregnant. The pillow includes a lower concave portion placed beneath the buttocks of the user to maintain the hips in an elevated positio... | 07/19/2005 |
| 6880215 | Method of manufacturing cushion construction for seating unit A method of manufacturing a seating unit, such as a chair, includes manufacturing a cushion made from a non-woven fibrous material, and attaching the cushion to the seating unit for comfortable support. The cushion is made by cutting a blank from non-woven fibrous s... | 04/19/2005 |
| 6733074 | Support assembly for use with a wheelchair A wheelchair backrest assembly is attachable to a wheelchair to replace the standard web or sling-type back. The backrest assembly is comprised of a rectangular frame having a central opening defined within it, the rectangular frame has sides curved forwardly to acc... | 05/11/2004 |
| 6669301 | Furniture article having panel and integral perimeter frame A furniture component, such as a chair back or seat, includes a panel component made of a flexible compliant plastic, and a rigid tubular perimeter frame integrally molded onto and hence bonded to a perimeter flange of the panel component to structurally ... | 12/30/2003 |
| 6626497 | Backrest of a chair The backrest of a chair comprises an inner low rigidity flexible back-receiving portion and an outer high-rigidity side frame spaced from the back-receiving portion via a slit. The backrest is integrally molded by synthetic resin, thereby shortening manuf... | 09/30/2003 |
| 6540302 | Chair having a lumbar supporting removable back An article, particularly of furniture, such as a chair, at least a portion of which is shaped and decorated whereby to simulate an equivalent article having a fabric article such as a shirt arranged over it. The simulation may be achieved by the shape of ... | 04/01/2003 |
| 6425637 | Cushion construction for furniture A chair includes a base, a back, and a seat with at least one of the back and seat including a cushion made from a non-woven fibrous material. A method includes steps of cutting a blank from a sheet of non-woven fibrous material, forming the blank into a ... | 07/30/2002 |
| 6386638 | Seat back for a vehicle The invention relates to a seat back for a vehicle with a one-piece supporting structure made of light metal alloy, with a frame having an essentially rectangular contour and defining the upper, the lower and the two lateral delimitations of the seat back... | 05/14/2002 |
| 6250718 | Support member for a chair back A chair including a seat, a support member, an outwardly extending projection and a chair back. A support member extends upward adjacent a rear portion of the seat. An outwardly extending projection is attached the support member. The chair back includes ... | 06/26/2001 |
| 6168239 | Seat back with shaped internal ribs A plastic contoured seat back includes an inner and an outer shell affixed together. The inner shell includes a three dimensionally curved front surface and a two dimensionally curved back surface. The inner shell may include an internal rib adjacent the ... | 01/02/2001 |
| 6109696 | Chair with chair back attachment A chair having a support member secured to a chair back without fastening devices. The support member having a top portion extends upward from a rear portion of the seat. The projecting surface is attached to the top portion of the support member. The cha... | 08/29/2000 |
| 6056366 | Composite back frame for a vehicle seat and method for distributing seat belt loads A vehicle set back frame that is lightweight and sufficiently rigid to be incorporated in an all-belts-to-seat seat belt mechanism. A seat back shaped back frame is C-shaped in cross-section and wrapped with a load-transfer panel and a lumbar panel to for... | 05/02/2000 |
| 6036272 | Support for chairs and method of manufacturing A substrate for chairs formed from a resilient material with molded locator pin(s) to facilitate assembly. The substrate comprises a friction seat and a curled back portion around its perimeter. The friction seat, in conjunction with the curled back surfa... | 03/14/2000 |
| 6009578 | Seat cushion A seat cushion comprising a resilient wedge-shaped pad having an upper surface at an incline sloping downwardly from a higher end to a lower end. A plurality of spaced apart gel packs are on the upper surface of the resilient wedge-shaped pad. The gel pac... | 01/04/2000 |
| 5988757 | Vehicle seat assembly A vehicle seat assembly includes an aluminum lower seat frame with first and second side supports having a thickness of less than four mm throughout a substantial portion thereof. The seat back frame is pivotally connected to the lower seat frame and comp... | 11/23/1999 |
| 5988746 | Split back chair A split back chair having a generally L-shaped seat member formed of a horizontal section and a vertical section, and separate independently movable right and left back portions. A first flat spring extends between and hingedly connects the back portions ... | 11/23/1999 |
| 5951110 | Contoured plastic seat back A plastic contoured seat back includes an inner and an outer shell affixed together. The inner shell includes a three dimensionally curved front surface and a two-dimensionally curved back surface. The inner shell may include an internal rib adjacent the ... | 09/14/1999 |
| 5887946 | Chair with movable back support A split back chair having a generally L-shaped seat member formed of a horizontal section and a vertical section, and separate independently movable right and left back portions. A first flat spring extends between and hingedly connects the back portions ... | 03/30/1999 |
| 5836653 | Backrests/legless leisure chairs made with a foundation A number of generally wedge shaped backrests and legless leisure chairs for sitting on the floor or on a bed, which orient the user's upper back at a higher angle than the user's lower back. These are ideally suited for people who want to be in a reclinin... | 11/17/1998 |
| 5833319 | Back cushion and seat cushion system A back cushion and seat cushion system including an intermediate extent having a rectangular configuration with an inner edge, an outer edge, and a pair of side edges defining a top face and a bottom face; a back cushion having a top edge, a bottom edge, ... | 11/10/1998 |
| 5791733 | Adjustable lumbar support A chair back has a user-positionable lumbar support plate, movable vertically along the back to position the support in an area between a padding panel and a backpan of the chair back. The lumbar support plate is mounted on a pin-and-slot track, and protr... | 08/11/1998 |
| 5722102 | Backrest device A backrest device having a supporting surface presenting two elongate continuous or discontinuous protuberances which extend alongside one another and are arranged to engage the back of a person, resting in use against the supporting surface, on each side... | 03/03/1998 |
| 5649739 | Backrest for a seat arrangement A backrest for a seat includes an upper back portion having an integral, central extension, a lower back portion having a central cut-out, and hinges for pivotally connecting the upper and lower back portions together to permit free swinging movement of t... | 07/22/1997 |
| 5605379 | Chair for providing a straight sitting positon Chair for a straight sitting position of the user with crossed legs (yoga position). The chair as characterized according to the invention has a seat raised on both sides, which is wider towards the front and adapted to the contour of the body resulting f... | 02/25/1997 |
| 5577811 | Ergonomic chair A chair comprises an integrally formed shell having a horizontal portion and a vertical portion. A seat pan is supported on resilient arms formed integrally with the shell. A pair of independently flexible arms of the vertical shell portion are formed int... | 11/26/1996 |
| 5575534 | Work chair A work chair comprising a backrest, a seat-pan, a fastening mechanism, and a support leg. The backrest is provided with a first fastening device. Theseat-pan comprises a pelvic support and a thigh support. The pelvic support is provided on the underside t... | 11/19/1996 |
| 5085488 | Seat backrest with a layered structure The backrest is composed of a rear layer of high rigidity and a softer front layer, the latter having transverse recesses or cavities in its face which is in contact with the rear layer. The backrest is suitable for front and rear seats.... | 02/04/1992 |
