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| Number | Title | Issue Date |
| 7658359 | Load compensator for height adjustable table A force adjustment assembly for use within a telescoping subassembly that includes a first elongated member and a second elongated member that is supported by the first elongated member for sliding motion along an extension axis, the subassembly further including a ... | 02/09/2010 |
| 7350628 | High force locking spring A spring system for relatively displacing elements attached to end mounts of the spring system. The spring system includes a housing having an axis, an internal chamber, and axially opposite bottom and top ends, a spring rod coaxial with the axis and positioned with... | 04/01/2008 |
| 7341313 | Adjustable armrest with motion control An armrest includes an armrest support and a subassembly supported thereon for vertical adjustment by a height adjustment device having a rotatable high-lead-angle threaded shaft, a mating nut, and a trigger. The shaft member is rotatable upon a vertical force being... | 03/11/2008 |
| 7328875 | Adjustable-height chair column An adjustable-height chair column comprises an upright tube and a gas spring, the piston rod of which is fixed in the upright tube, and the housing of which is displaceably guided in the upright tube. A safeguard against rotation is provided which, in the extended p... | 02/12/2008 |
| 7201259 | Adjustable-length compression spring An adjustable-length compression spring comprises a casing filled with pressure fluid. A piston rod is sealingly extended through a guide and seal unit which closes the casing, a piston, which is sealingly guided therein, being joined to the piston rod. The piston d... | 04/10/2007 |
| 7198236 | Multi-sectional nut and adjustable length pole incorporating such nut A nut assembly for quick adjustment of axial position relative to a threaded shaft. The nut is formed in two, physically separate sections, each having a surface portion with threads for mating engagement with the shaft. Each nut section is pivotally mounted to a bu... | 04/03/2007 |
| 6612534 | Stand assembly having anti-rotation feature A microphone stand assembly includes an automatically operated anti-rotation arrangement for preventing inadvertent disengagement of the shaft from the base.... | 09/02/2003 |
| 6502791 | Light duty adjustable pipe support assembly An improved light duty easily adjustable pipe support assembly having a flat base, cushion pad, and free turning adjustment rods. Each adjustment rod has an adjustment knob with friction locking capabilities that permits ease in the turning of the rod whi... | 01/07/2003 |
| 6283420 | Fine position adjustment for optical receiver or other sensor An adjustable support for a sensor has a first support defining a first end and a second end. A first clamp is fixedly coupled to the first support between the first and second and thereof. The first clamp has an adjustable coupling for selective fixation... | 09/04/2001 |
| 6131870 | Height adjusting apparatus with intermeshing bevel gears A height adjusting apparatus includes a vertical outer tube that is adapted to be fixed on the base, and a vertical inner tube that is adapted to be fixed on the working table and that is mounted telescopically on the outer tube. A guiding device guides t... | 10/17/2000 |
| 5944272 | Bobbin core holder for a bobbin creel A bobbin core holder for a bobbin creel. The bobbin core holder includes a sleeve body securable on a creel rod, on which sleeve body a ring socket is fitted so as to be rotatable into at least one predeterminable rotary position by a releasable spring de... | 08/31/1999 |
| 5857657 | Stand for medical instruments In a stand for medical instruments according to the present invention, a first coefficient of friction adapted between an outer circumferential surface of a sliding column and an inner circumferential surface of a bush is adapted to be smaller than a seco... | 01/12/1999 |
| 5738326 | Seat stem positioning structure of a chair for drummer A seat stem positioning structure for a chair for drummer, including an internally threaded seat stem connector shaped like a stepped tube and fastened to a tubular central shaft and equipped with pivoted legs for supporting on the ground, a threaded seat... | 04/14/1998 |
| 5615855 | Telescoping mast with integral payload In an integrated telescoping mast-payload assembly, the payload forms the top telescoping section.... | 04/01/1997 |
| 5497966 | Column unit, in particular a chair column unit A column unit, in particular a chair column unit, including a base tube (310) and a pneumatic spring (318), further comprises an axially movable guide bushing (314) which is inserted in an axially movable manner in the upper end (310b) of the base tube (3... | 03/12/1996 |
| 5088421 | Adjustable height desk An adjustable height desk including an open-front base and an outer skirting disposed over and around the base. Corner support brackets secured to the skirting below the work surface support threaded shafts. The lower end of each shaft is received and sup... | 02/18/1992 |
| 5031869 | Control assembly for chair height adjustment A displacement control assembly includes a rotatable lead screw longitudinally extending within a tubular column supporting the assembly. A nut is threaded to the screw for relative axial displacement of the screw and nut, for example, to adjust the heigh... | 07/16/1991 |
| 4750701 | Chair height adjustment mechanism A control assembly for adjustable displacement of a chair seat or the like comprises a lead screw threaded to a nut for relative longitudinal movement in order to adjust the height of the chair with the relative movement of the screw and nut. The control ... | 06/14/1988 |
| 4728072 | Height adjustment apparatus A mechanical height adjustment apparatus having a tubular telescopic body portion powered by a spring-loaded nut on a tubular threaded shaft and in which the same spring means acts to close a friction clutch that is selectively releasable by lever means r... | 03/01/1988 |
| 4627602 | Mechanical lifting device A mechanical lifting device, preferably for a chair seat, comprising two reciprocally telescoping parts, one of which is attached to a chair support, whereas the other part is attached to the chair seat, both parts being mutually spring loaded, a locking ... | 12/09/1986 |
| 4601454 | Telescopic supporting post A telescopic supporting post (10) comprises two mutually displaceable telescope members (11, 12), each comprising an inner tubular portion (15, 17) of small diameter and an outer tubular portion (16, 18) of large diameter. Said inner portions (15, 17) are... | 07/22/1986 |
| 4493469 | Height adjustment control arrangement A height adjustment control arrangement for adjusting the height of a chair seat relative to a chair base in an office chair, includes a lower mounting assembly, an upper mounting assembly vertically displaceable relative to the lower mounting assembly, a... | 01/15/1985 |
| 4285488 | Height adjusting mechanism for a swivel chair A swivel chair having a main screw connected to the chair seat and rotatably supported in a mounting assembly on the chair base enabling rotation of the seat relative to the base without varying the height of the seat. Height adjusting apparatus provides ... | 08/25/1981 |
| 4257582 | Support column of adjustable length A pneumatic spring of the piston-and-cylinder type constitutes a support column whose length may be adjusted when a valve connects the two cylinder compartments on opposite sides of the piston. The valve is normally closed by gas pressure and may be opene... | 03/24/1981 |
| 4087071 | Chair height limit stop Limit stop means for limiting vertical height adjustment of a swivel chair support comprising a spindle, a fixture on one end of the spindle for connection to a chair seat, the upper end of the spindle threaded and having a load supporting adjustment nut ... | 05/02/1978 |
| 4087070 | Swivel chair with non-keywayed main screw A swivel chair having a non-keywayed main screw rotatably connecting the chair seat and a supporting base to enable rotational movement of the seat with respect to the base. The top portion of the main screw is secured to the bottom of the seat, and the b... | 05/02/1978 |
