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| Number | Title | Issue Date |
| 6935689 | Chair The chair comprises an axis X1 that extends right and left and that connects a seat 6 and a supporting body 3 arranged under the seat 6 in a rotatable manner at a front end portion of the seat frame 4, an axis X2 that connec... | 08/30/2005 |
| 6871909 | Locking mechanism for chair and pushbutton control therefor A first chair part may be fixed relative to a second chair part by way of a sliding member attached to the first part which slides in a body attached to the second chair part. The chair parts are fixed relative to each other when a pin associated with the body engag... | 03/29/2005 |
| 6419320 | Base manipulation device for office chair A base manipulation device for an office chair includes a bottom plate having locking slots and pivoted with a chair base which has a rotation plate provided with a pivot plate and a drive plate. An operation bar is pivoted on the pivot plate and has a di... | 07/16/2002 |
| 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 |
| 5033791 | Chair frame A chair frame comprises a seat part and a backrest part. A spring connecting portion, which is fixed by a pivot joint to the free end of a support arm is provided at the knee side of the seat part. To the backrest part is fixed at least one backrest strut... | 07/23/1991 |
| 5004259 | Rocking wheelchair An improved rocking wheelchair formed of a frame, two sets of support wheels for the frame, and a seat portion rockably connected to the frame by a rocking assembly that normally maintains the seat in a generally horizontally alignment when the chair is u... | 04/02/1991 |
| 4877290 | Rocker mechanism with a locking facility A rocker mechanism (10) preferably intended for rotatable arm chairs, comprising an upper part (12) which is attached to a seat and which is pivotally journalled to an underpart (14) by means of a horizontal pivot shaft (24), the underpart being carried b... | 10/31/1989 |
| 4844541 | Rocking furniture with removably secured and adjustable cushions The disclosure pertains to furniture of the chair, loveseat and couch type which includes a frame, first and second members linked with one another and generally parallel to one another, one or more spring members coupling the first and second members wit... | 07/04/1989 |
| 4790598 | Inclinable chair provided with balance or rocker structure The chair has a seat or seat portion equipped with a balance and its linkage structure has links fixed in articulated manner to a support arm and to which there is articulated a balance device in parallelogram-like manner. A slide is slidingly guided on t... | 12/13/1988 |
| 4732423 | Invalid's chair construction Invalid's chair has a support frame which includes a main support section, a seat support section pivotable on the main frame section and a back frame section, pivotable on the seat support section of the frame. The chair includes a seat cushion mounted o... | 03/22/1988 |
| 4664445 | Tilting mechanism for a chair seat or the like A tilting mechanism for a chair seat or the like of the kind where said tilting mechanism comprises a rigid metal plate being connected to a chair support via a retaining means and where said chair seat is pivotally connected to said tilting mechanism by ... | 05/12/1987 |
| 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 |
| 4502727 | Pivot mounted cycle seat with spring cradle A cycle seat with a back is moulded of either plastic or metal material and is fixed to a conventional cycle seat post with a standard racheting clamp and an unique spring cradle. The cradle accepts a horizontal pivot bolt journalled in the forward portio... | 03/05/1985 |
| 4340250 | Platform rocking chair springs A platform rocking chair is provided by mounting a chair seat to a platform solely by a pair of flat fiber-reinforced springs extending from the sides of the platform to the sides of the chair seat. The rocker blocks employed in many platform rockers are ... | 07/20/1982 |
| 4099775 | Chair control with tilt lock A chair control comprising a frame structure adapted to be supported on a conventional chair base, a chair seat support pivotally mounted on the frame structure for fore and aft tilting movement relative to the frame structure, a biasing structure such as... | 07/11/1978 |
| 4062587 | Back position control device for chairs A pivotally mounted back support for a chair is disclosed incorporating a pivotal mounting utilizing a plurality of interleaved clutch plates. Alternate ones of the clutch plates are stationary and the remainder are connected to the lower end of the back ... | 12/13/1977 |
