Class 297/333 - Spring axis coaxial with pivot axis of bottom

Subclass of Class 297 - Chairs and seats
Definition: Device wherein the biasing means includes a resilient means
No. of patents: 25
Last issue date: 04/17/2012

Number	Title	Issue Date
8157326	Seat A seat comprising a seat pan (12) and a support structure, wherein the seat pan (12) is pivotally coupled to the support structure (8) about a first pivot axis (pi) provided across substantially the front of the seat pan (12), such that t...	04/17/2012
7950739	Stadium seat and a method of mounting a stadium seat A seat (1, 41, 61) for stadia, auditoria and the like is disclosed. The seat has a fixed backrest (2, 42) pivotable between a horizontal use position and a vertical standby position. A spring (33) or other resilient means urges the seat (5, 4...	05/31/2011
7350845	Modular deck lid hinge with coil springs A vehicle body decklid hinge includes at least one hinge set carried by a bracket that retains a pivot pin and a retainer bar in a cantilevered manner. The pivot pin supports a lever, such as a gooseneck strap, that will be coupled to the hood, while the bracket inc...	04/01/2008
7334624	Safety gate A gate having a latching mechanism which requires two distinctly different unlatching movements which occur in distinctly different directions, but where both of these unlatching movements can be performed with the use of only one hand. In addition, timer/alarm capa...	02/26/2008
7192088	Vehicle seat assembly A stowable seat assembly is provided for use with a vehicle having a floor and a recess formed therein. The assembly includes a seat and a pivot tube adapted to be secured to the vehicle floor, with the seat being operatively pivotal about the pivot tube between a f...	03/20/2007
7131225	Folding chair A sign holding device for a folding chair that allows the user to display customized messages on a back rest of the chair. The sign holder is attached to the back rest in various manners so as to permit messages to be displayed when the chair is unfolded. The sign h...	11/07/2006
7000989	Chair or seat A chair or seat, for use in theaters and/or stadiums, having a back member, a seat member, an armrest construction, a pivot assembly comprising an aperture on an arm or frame of the chair, a pivot member associated with a chair seat, and a bearing member which can a...	02/21/2006
6974188	Chair with pivotable chair back A chair comprises a frame, a chair back, and a chair back return device. The chair back is mounted to the frame for pivotable movement away from a home position. The chair back return device is arranged to return the chair back to the home position. ...	12/13/2005
6971711	Stool for a closet A stool is provided for placement in a closet and which may be selectively extended or stored away. The stool comprises a horizontal support and a seat rotatably attached to the horizontal support. A first leg is attached to the horizontal support, and a swing arm i...	12/06/2005
6755468	Folding chair A folding chair includes two pairs of intersected legs. A traverse pivot rail interconnects the intersections of the two pairs of legs. Two support mechanisms are spaced along the pivot rail, each support mechanism comprising an upper hole. Two cylinder pads are anc...	06/29/2004
6652030	Chair seat A chair seat that is movable between an upright and a forward position includes a spring mechanism that biases the seat toward the upright position. The spring mechanism includes camming structures that utilize both compressional and torsional forces from...	11/25/2003
6523900	Chair seat A chair seat that is movable between an upright and a forward position includes a spring mechanism that biases the seat toward the upright position. The spring mechanism includes camming structures that utilize both compressional and torsional forces from...	02/25/2003
5927808	Tumble seat for an automotive vehicle including improved seat cushion mounting structure A tumble seat for an automotive vehicle wherein provision is made for pivoting a seat cushion frame for the tumble seat about a pivot pin with an axis that is transverse to the fore-and-aft center plane of the vehicle passenger compartment. The pivot pin ...	07/27/1999
5803546	Turning mechanism for chair seat Disclosed is a turning mechanism for a chair seat which comprises a shaft having a square cross section and fixed to the leg of a chair having a seat, a spring disposed to the shaft with an end thereof locked to the shaft and the other end thereof engaged...	09/08/1998
5328239	Flip-up type seat A flip-up type seat has a seat member support, a seat member, and a seat member coupling mechanism interposed between the seat member support and the seat member to couple the seat member to the seat member support in such a way that the seat member can b...	07/12/1994
4854640	Apparatus for raising seat of chair An aparatus for raising a seat of a chair includes a pair of arms fixedly secured to both sides of the seat, stationary shaft extending between both legs of the chair, a position determining sleeve turnably mounted on the stationary shaft, a first coil sp...	08/08/1989
4832404	Flight attendant seat and its arrangement in an aircraft A seat for a flight attendant in an aircraft is constructed to be secured to a supporting inner cabin wall. The seat unit includes a seat section tiltably supported in a mounting. The backrest unit includes a backrest cushion with a head cushion. A safety...	05/23/1989
4652051	Folding seat A folding seat is disclosed which comprises a base structure, a seat cushion pivotally mounted to the base structure, a seat back pivotally connected to the seat cushion, first springs arranged between the seat cushion and the seat back to bias them towar...	03/24/1987
4603830	Spring mounting apparatus The invention relates to a device for sprung tilting movement of a component such as an inclining mechanism for a tiltable seat. The spring system is formed by at least one spring rod which is rotatably mounted in at least two bearings of which one bearin...	08/05/1986
4575151	Chair tilting mechanism A mechanism for connection to a chair and to a base for allowing the chair to tilt forward and backward and from side-to-side relative to the base when the base is supported on a floor. The mechanism includes a support in the form of a housing mounted on ...	03/11/1986
4295626	Resilient mounting for a reclining seat A resilient mounting for a reclining seat, the mounting including a first member to be secured to a supporting base for the seat, a second member to be secured to the seat and which is pivotally connected to the first member, and a torsion bar which forms...	10/20/1981
4270794	Retractable seat structure A retractable seat structure for movement between an open, extended position and a foldable, retracted position has a frame for mounting within a wall and a seat assembly foldably mounted relative to the frame. An elongate pivot member such as a rod exten...	06/02/1981
4195372	Automatic seat return spring for relatively pivoted toilet seat and cover assemblies A leaf spring integrally formed of resilient sheet material has a transverse, substantially tubular arcuate intermediate portion terminating in opposed, laterally outwardly-extending, substantially flat abutment leaf portions. The tubular portion of the s...	04/01/1980
4185803	Pivotable adjustment mechanism Pivotable adjustment mechanism is provided for the connection of two mutually moveable members. Such members can be a seat portion and a base support portion of a chair, two cooperating, shaft forming members of an apparatus, a machine, etc. The adjustmen...	01/29/1980
3976326	Hinge A hinge comprises a first and a second bracket that are at least partially spaced apart. A viscoelastic member is disposed between and secured to the brackets to permit relative rotation between them about an axis that passes through both brackets and the...	08/24/1976

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Class 297/333 - Spring axis coaxial with pivot axis of bottom