Class 297/452.29 - Contoured back

Subclass of Class 297 - Chairs and seats
Definition: Device including a back configured to substantially conform
No. of patents: 49
Last issue date: 10/13/2009

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Number	Title	Issue Date
7600821	Seat A seat provides a band-like support for the body sides of a user so as to reduce the supporting pressure on the user's lumbar and to hold the user's upper body stably. In this seat, the center of a load to be received in regions symmetrically divided to a vertical c...	10/13/2009
7334845	Comfort surface for seating A seating unit includes a perimeter frame, a flexible seating surface supported by the frame, and parallel elongated resilient force-distributing members coupled to the seating surface to control a contour of the seating surface when supporting a seated user. The re...	02/26/2008
7320503	Backrest for seats and chairs having pressure and tensile elements The invention relates to a backrest with a support area (71), at least one structure connected to the support area (71) or forming the support area (71), which structure (10) extends towards the top of the backrest from a first end region...	01/22/2008
7270377	Lumbar support for law enforcement officers Many law enforcement officers have lower back problems arising from the habitual wearing of what is generally known as a “Sam Browne” duty belt. Workmen's Compensation now presumes any lower back ailment suffered by a law enforcement officer was caused by a duty...	09/18/2007
7252340	Aircraft passenger seat with forward arm rest pivot A passenger seat with increased knee space for an aft-seated passenger, including a seat base for being attached to a supporting deck and at least one seat frame including a seat back and seat bottom carried by the seat base. At least one arm rest assembly is carrie...	08/07/2007
7213887	Attachment of head rest guide tube to vehicle seat frame A vehicle seat assembly includes a seat back frame having an aperture extending therethrough, and a head rest guide tube disposed in the aperture. The guide tube has a radially extending swaged portion engaged with the seat back frame for securing the guide tube to ...	05/08/2007
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
6926358	Impact absorbing structure and seat structure The object of the present invention is to suppress rebound of a human body when receiving a large impact load accompanying a collision or the like. A back frame member 20 and a seat frame member 10 are individually formed by welding or caulking, and a ...	08/09/2005
6913318	Adjustable seat support for a wheelchair An adjustable seat support assembly for a wheelchair. The seat support assembly includes a seat bottom frame and a seat back frame. The seat bottom frame has at least two spaced apart beams. Each beam includes at least one channel that extends along at least a porti...	07/05/2005
6910741	Lumbar support A back portion for a chair includes a peripheral frame defining an opening therein. A lumbar support portion is disposed in the opening. The lumbar support portion comprises a substantially rigid panel. Two hinge devices are hingedly mounted on opposite sides of the...	06/28/2005
6908159	Seat for a reclining office chair A seat portion (14) for a seat (10) wherein the seat portion (14) includes a panel having a rear portion to support the occupant. The rear portion has a longitudinal centerline and incorporates two zones (162) on either side of the longit...	06/21/2005
6899397	Aircraft passenger seat with forward arm rest pivot A passenger seat with increased knee space for an aft-seated passenger, including a seat base for being attached to a supporting deck and at least one seat frame including a seat back and seat bottom carried by the seat base. At least one arm rest assembly is carrie...	05/31/2005
6655740	Motorcycle backrest A motorcycle backrest has a back support cushion with a handhold aperture, and a support arm mounting for mounting the back support cushion on the motorcycle saddle or frame. The backrest can simultaneously function as a comfortable back support for the d...	12/02/2003
6652034	Upholstery support The invention relates to an upholstery support for a seat, especially for utilization in an automobile. According to the invention, an especially lightweight of vehicle seat construction is achieved in that the upholstery support is built in the form of a...	11/25/2003
6454352	Car seat pad A car seat pad for use in child safety seats is described. The seat pad is formed of isotonic foam or encapsulated gel material to insulate an infant or small child from the hard surface of the safety seat. The pad includes a back portion and a hingedly j...	09/24/2002
6409268	Flexible chair back A flexible chair back comprising a back supporting surface that is defined by a plurality of generally downwardly directed curvilinear shaped openings arranged in a vertical array. Each of the curvilinear openings is around the next adjacent lower curvili...	06/25/2002
6394547	Ergonomic chair A seat or chair that includes a seat back that is moveable so that it may be positioned to provide primary support to the spine and surrounding tissue centered on the region between the 2nd lumbar vertebrae and the 11th thoracic vert...	05/28/2002
6231124	Multi-functional cafe chair A readily movable cafe chair that is multi-functional and therefore useable by its seated occupant in various ways. The chair includes a back section formed by a sculptured panel defining a flat figure whose head merges with a body region having outwardly...	05/15/2001
6217121	Therapeutic cushioning device A therapeutic cushion device used in combination with an article of furniture to achieve comfort for a user comprises a seat portion, which comprises a plurality of vertically moving pins in substantially close proximity to one another. Each pin comprises...	04/17/2001
6139110	Reinforced cantilever bench A wooden bench having a reinforced metal frame is provided. The reinforced bench comprises a metal back support frame section of unitary construction and a pair of curvalinear metal side support frame sections of unitary construction. The side frame secti...	10/31/2000
6099075	Seating arrangement A seating arrangement having a flexible back and/or seat portion with retaining type pockets thereon for removably retaining at least one bendable rigid support in a predetermined orientation....	08/08/2000
6041457	Method of stretching the human back 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...	03/28/2000
6003937	Safety seat A safety seat for use in passenger transport and advantageously provides sufficient strength to withstand maximum loading during collision. The seat comprises a rear portion comprising a plurality of sections having different relatively controllable defor...	12/21/1999
5779317	Chair with interchangeable chair components A mix and match chair having a plurality of legs and removable chair components such as seats, backrests, footrests, and armrests. The mix and match chair comprises a chair frame having a backrest portion and a seat portion. Attached to the backrest and s...	07/14/1998
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
5580124	Apparatus for preventing whiplash A vehicle-installed supporting seat for a passenger is provided, which includes a seat back provided with an integral head-neck restraint comprising a cranium support portion and a cervical spine support portion. Each portion includes a layer of resilient...	12/03/1996
5547253	Sit/stand adjustable, tower chair An adjustable, tower chair includes a five spoke rolling base having a central portion; and a tower including a lower portion mounted to the central portion of the base, and an upper portion extending upwardly with respect to the lower portion and off-cen...	08/20/1996
5425567	Backrests/legless leisure chairs and methods for making cushions 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...	06/20/1995
5328245	Chair having adjustable back support A chair is provided with an adjustable back support which quickly and easily conforms to the contours of the user's back. The chair has a seat and an upwardly extending support bar. A number of segments are received on the support bar to define a support ...	07/12/1994
5314240	Shell structure for use with a chair having synchronously moving seat and seat back A shell for a chair in which a bottom shell structure and a backrest shell structure are connected to supporting frame members such that when a light load is applied to the separate backrest shell the backrest shell will bend to accommodate the load, wher...	05/24/1994
5286083	Lumbar support back rest A lumbar support back rest having an interior ribbed structural member. The structural member has general configuration which conforms to the curvature of the human back and protruding ribs which conforms to a user's back. A resilient removable covering s...	02/15/1994
5251963	Vehicular long cruising seat A long drive seat comprises a seat back and a seat cushion which the seat back extends from. The seat is provided with a coccygeal vertebra movement restrainer constructed and arranged so as to restrain movement of a coccygeal vertebra of a spine of the s...	10/12/1993
5163737	Cushion The cushion has a contoured base with a layer of resilient cushion foam thereover. The cushion foam is of uniform thickness over a substantial part of the base and is suitably covered. The shape is such that the buttocks of the seated person are clasped p...	11/17/1992
5108151	Upholstery support for the back rest of a motor vehicle An upholstery support for the back rest of a vehicle seat, particularly a motor vehicle seat, is disclosed. The support comprises two half-shells connected with each other along at least a portion of their edges and form two hollow box-like arms (4) which...	04/28/1992
5085487	Seat with foamed plastic padding and process for its manufacture The invention relates to a seat, in particular for vehicles, with a padding of foamed plastic with a supporting body made of an open-cell elastic plastic foam having a first specific gravity and with a flame-retardant layer made of an open-cell elastic pl...	02/04/1992
5052755	Chair, and methods of constructing and utilizing same A chair for naturally supporting a user's body in an erect sitting posture. The frame of the chair supports a specially-constructed seat portion which cooperates with a back support portion to normally and comfortably maintain an erect sitting posture. Th...	10/01/1991
5018791	Seating furniture There is described a seat construction or seating furniture having a back rest which is pivotable around a horizontal axis approximately at the height of an armrest. At approximately the height of the pivoting axis, the backrest is bent in such a way that...	05/28/1991
4981326	Ergonomic chair An ergonomic chair having a movable, bendable chair back, which offers improved comfort and adjustability. The structure includes a series of rearward opening grooves in the chair back. This structure allows limited back flexibility. The chair also includ...	01/01/1991
4969688	Vehicular seat A vehicular seat is disclosed, which comprises a seat portion, a seatback portion and a reclining device for varying an angular position of the seatback portion relative to the seat portion. The seatback portion includes a rectangular frame which has a lo...	11/13/1990
4835029	Sheath structure for furniture, envelopes, paneling, and the like A sheath structure (10) for use as a backrest for a chair or as a seat, envelope, wallet, purse, handbag, panel, etc., comprising pliable sheet material (32) stretched on a frame (20)and presenting spaced-apart front and rear exterior surfaces (33, 39). T...	05/30/1989

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Class 297/452.29 - Contoured back