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| Number | Title | Issue Date |
| 7665805 | Chair It is a subject to provide a chair capable of realizing a condition in which movements of a seating person are preferably followed and a condition in which a back of the seating person can be preferably supported. For this purpose, a chair C comprising a lower frame... | 02/23/2010 |
| 7303233 | Height adjustable chair with rocking function The invention provides a chair that the switching between operation and fixation of rocking may be operated with the height adjustment of the chair by one operation lever. A resilient member is interposed between a seat frame whose height is adjustable by a cylinder... | 12/04/2007 |
| 7293832 | Chair adjustable device A chair adjustable device includes a base with which a seat frame and a backrest frame are respectively and pivotably connected. A positioning mechanism is connected to the base and includes an operation handle which is able to shift a transmission frame and a posit... | 11/13/2007 |
| 7278685 | Recliner A reclining apparatus includes a base, a reclining element and a control element. The base is arranged between a seat and a post of a chair. The reclining element is connected to a backrest of the chair and pivotally installed on the base. The reclining element defi... | 10/09/2007 |
| 7249801 | Cushioning device to cushion the backrest of a chair, an armchair, an office chair or similar Cushioning device to cushion a backrest with respect to the seat of a chair or suchlike. The device comprises a first supporting element connected to the backrest, a second supporting element connected to the seat and pinned to the first supporting element, and a sp... | 07/31/2007 |
| 6932430 | Combined tension and back stop function for seating unit A seating unit includes a base, a seat, a back, and a control operably supporting the seat and the back on the base for movement between upright and recline positions. The control includes a spring providing a biasing supporting force to the back during recline, and... | 08/23/2005 |
| 6880886 | Combined tension and back stop function for seating unit A seating unit includes a base, a seat, a back, and a control operably supporting the seat and the back on the base for movement between upright and recline positions. The control includes a spring providing a biasing supporting force to the back during recline, and... | 04/19/2005 |
| 6779847 | Multi-task mid-pivot chair control mechanism A chair control mechanism for positioning between the seat and seat support of a chair. The chair control mechanism includes a base section for mounting to a seat support such as an adjustable height cylinder, and a seat mounting section pivotally interconnected wit... | 08/24/2004 |
| 6598936 | Multi-task mid-pivot chair control mechanism A chair control mechanism for positioning between the seat and seat support of a chair. The chair control mechanism includes a base section for mounting to a seat support such as an adjustable height cylinder, and a seat mounting section pivotably interco... | 07/29/2003 |
| 6406096 | Seat spring system A chair including a seat assembly having an improved seat spring system to provide a flexible spring backrest frame. A pair of ends of spaced apart backrest frame members are arranged in registry with respective ends of seat support frame members, with ea... | 06/18/2002 |
| 6276755 | Swivel arrangement for a chair seat A swivel arrangement is provided for a chair having a backrest, a chair seat, a chassis, and a base. The chassis includes a swivel seat mounted to an underside of the chair seat, a first connecting seat, a second connecting seat, a spring seat, a control ... | 08/21/2001 |
| 6213552 | Multi-position chair control mechanism for synchronously adjusting the seat and backrest of a chair A seat adjustment mechanism for a chair includes a first handle which controls the height of the seat above a surface supporting the chair. A second handle allows the user to selectively lock the seat at a user selected angle relative to the supporting su... | 04/10/2001 |
| 5931531 | Chair having adjustable synchronous tilting A chair having adjustable synchronous tilting, where a seat (7) pivotable about a seat pivot axis (5) and a back-rest support (11) pivotable about a back-rest pivot axis (9) are coupled by a coupling link (15) for simultaneous inclination changes, the syn... | 08/03/1999 |
| 5374102 | Chair assembly for vehicle A chair assembly for use in a vehicle such as a locomotive, having a height adjustable base which is free of any wobble and shaking motion, whether being raised, lowered or in use by a driver. The chair also has lateral movement capacity as well as fore-a... | 12/20/1994 |
| 5288130 | Chair for the lower back A chair is specifically designed to be usable as an ordinary office chair. The chair employs both anterior and posterior pelvic restraints to prevent rotation of the pelvic region. Several adjustment devices permit proper movement up and down and back and... | 02/22/1994 |
| 5282670 | Cable actuated variable stop mechanism An adjustable chair includes a base, a back and a chair control for pivotally connecting the back to the base for movement between a fully upright position and an inclined position. A cable actuated variable back stop mechanism includes a generally U-shap... | 02/01/1994 |
| 5029822 | Device for adjusting the inclination of the backrest of a seat A device for adjusting and locking the inclination of the backrest of a seat, for example an aircraft seat, comprises a gas compression spring which acts between the back rest and the frame of the seat and which is of the type which has a locking and rele... | 07/09/1991 |
| 4943115 | Swivel chair with adjustable back rest A chair wherein the support at the upper end of the leg has a rigidly mounted carrier for the front portion of the seat and a carrier for the back rest. The carrier for the back rest is connected to the carrier for the seat by a coupling which allows angu... | 07/24/1990 |
| 4408800 | Office chairs Improvements for office chairs are described which include a cam control mechanism having two operative positions under control of the occupant. In the first position the cam actuates a first pneumatic cylinder to adjust the height of the seat over a cont... | 10/11/1983 |
| 4235471 | Angular vibration isolator for seat back Angular vibration isolation is provided for a seat back member in combination with a mechanism for adjusting the seat back angle. Eccentrically mounted cylindrically shaped cam members located at each side of the seat back frame can be adjustably rotated ... | 11/25/1980 |
| 4183581 | Posture iron with safety stop The specification discloses a chair control in which a generally upright back support member is pivotally mounted to a support arm extending rearwardly from beneath a seat support member, there being a releasable securing means for securing or alowing adj... | 01/15/1980 |
| 4123103 | Chair control for a tiltable stenographer's chair This invention discloses a novel chair control for use with a tiltable stenographer's chair. It discloses a compact and improved biasing means to control the movement of the movable frame member, this biasing means being a U-shaped bolt with two helical s... | 10/31/1978 |
| 4099774 | Stenographer's chair A chair having a novel structure by which the seat cushion and backrest cushion are attached to the chair frame. The chair includes a novel first adjustment device by which the horizontal position of the backrest, and the rearward tilt pressure of the bac... | 07/11/1978 |
