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Class Information
Number: 248/421
Name: Supports > Stand > Adjustable vertically > Toggle or link
Description: Device wherein the adjusting means include a plurality of pivoted bars connected to the support surface and movable to raise and lower the surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4858482 |
Scissor mechanism in particular for lift tables |
Aug. 22, 1989 |
| 4850561 |
Standard module device for an adjustment in height of base of a seat |
Jul. 25, 1989 |
| 4842334 |
Vehicle seat adjustable both as to height and inclination |
Jun. 27, 1989 |
| 4834333 |
Height adjusting device for automotive seat |
May. 30, 1989 |
| 4828213 |
Height adjusting device for automotive seat |
May. 9, 1989 |
| 4828216 |
Floating knee pivot suspension |
May. 9, 1989 |
| 4822094 |
Tractor seat suspension mechanism with automatic seat stop |
Apr. 18, 1989 |
| 4817220 |
Height adjusting mechanism for a physical therapy bench |
Apr. 4, 1989 |
| 4809944 |
Air spring seat and air pump |
Mar. 7, 1989 |
| 4804228 |
Chair for service to customer |
Feb. 14, 1989 |
| 4799734 |
Linear device for rapidly adjusting and immobilizing a movable part relative to a fixed part |
Jan. 24, 1989 |
| 4787594 |
Seat for motor vehicles |
Nov. 29, 1988 |
| 4779832 |
Manually operable seat adjustor assembly |
Oct. 25, 1988 |
| 4778139 |
Height adjustment mechanism |
Oct. 18, 1988 |
| 4778138 |
Apparatus for adjusting height of seat for automobile |
Oct. 18, 1988 |
| 4767157 |
Seat lifter |
Aug. 30, 1988 |
| 4757989 |
Martial arts board holding device |
Jul. 19, 1988 |
| 4747571 |
Adjustable seats and components therefor "A" version |
May. 31, 1988 |
| 4747353 |
Straight line motion mechanism |
May. 31, 1988 |
| 4744712 |
Apparatus and method for an improved wafer handling system for cantilever type diffusion tubes |
May. 17, 1988 |
| 4741512 |
Lifting device or load-supporting apparatus |
May. 3, 1988 |
| 4738427 |
Height adjusting device for an automotive seat |
Apr. 19, 1988 |
| 4729539 |
Seat suspension device |
Mar. 8, 1988 |
| 4726633 |
Tiltable monitor |
Feb. 23, 1988 |
| 4725031 |
Bar linkage seat adjuster apparatus and method |
Feb. 16, 1988 |
| 4720070 |
Height adjuster operation mechanism for an automotive seat |
Jan. 19, 1988 |
| 4700921 |
Adjustable pedestal for boat seats |
Oct. 20, 1987 |
| 4685731 |
Tank crew seat structure |
Aug. 11, 1987 |
| 4681292 |
Pneumatic seat support with linkage and horizontal shock absorbers |
Jul. 21, 1987 |
| 4669139 |
Reclining bunk for sleeper |
Jun. 2, 1987 |
| 4666119 |
Extendible framework |
May. 19, 1987 |
| 4659052 |
Vertical adjustment support device for a vehicle seat |
Apr. 21, 1987 |
| 4650148 |
Locking device for a seat suspension |
Mar. 17, 1987 |
| 4648575 |
Height adjusting device for vehicle seat |
Mar. 10, 1987 |
| 4648578 |
Weight adjustment device for a seat suspension |
Mar. 10, 1987 |
| 4643383 |
Manual seat adjuster |
Feb. 17, 1987 |
| 4632355 |
Pneumatic seat support with linkage and horizontal shock absorbers |
Dec. 30, 1986 |
| 4629151 |
Seat lifter |
Dec. 16, 1986 |
| 4607578 |
Positioning mechanism |
Aug. 26, 1986 |
| 4596373 |
Anti-vibration apparatus for seismic acceleration |
Jun. 24, 1986 |
| 4589621 |
Ergonomic monitor stand |
May. 20, 1986 |
| 4573657 |
Vertical adjustment device for a vehicle seat |
Mar. 4, 1986 |
| 4566667 |
Seat suspension |
Jan. 28, 1986 |
| 4565343 |
Terminal elevating mechanism |
Jan. 21, 1986 |
| 4558648 |
Energy-recycling scissors lift |
Dec. 17, 1985 |
| 4556185 |
Seat frame for a vehicle seat |
Dec. 3, 1985 |
| 4541134 |
Vibration damping supports |
Sep. 17, 1985 |
| 4533106 |
Lifting device for a dentist chair |
Aug. 6, 1985 |
| 4529159 |
Seat structure for an automotive vehicle |
Jul. 16, 1985 |
| 4522547 |
Heavy load conveyor system |
Jun. 11, 1985 |
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