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Class Information
Number: 248/404
Name: Supports > Stand > Standard type > Adjustable vertically > With force multiplying means
Description: Device in which the standard is moved vertically by a means which employs a mechanical advantage, e.g., gears or hydraulic motors.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621490 |
Height adjustable holding apparatus |
Nov. 24, 2009 |
| 7594633 |
Telescoping pole mount |
Sep. 29, 2009 |
| 7584973 |
Multilevel tool tree |
Sep. 8, 2009 |
| 7523911 |
Telescoping pole mount |
Apr. 28, 2009 |
| 7458546 |
Monitor stand |
Dec. 2, 2008 |
| 7398952 |
Telescoping pole mount |
Jul. 15, 2008 |
| 7374139 |
Retractable support tube structure |
May. 20, 2008 |
| 7328875 |
Adjustable-height chair column |
Feb. 12, 2008 |
| 7306192 |
Height-adjustable column |
Dec. 11, 2007 |
| 7270062 |
User height adjustable tables, support structures, and chairs |
Sep. 18, 2007 |
| 7028957 |
Easily assembled and disassembled tables |
Apr. 18, 2006 |
| 7017872 |
Height adjustable boat seat pedestal |
Mar. 28, 2006 |
| 6921056 |
Mechanical arm and counterbalance assembly |
Jul. 26, 2005 |
| 6918564 |
Height adjustable apparatus for supporting flat monitor |
Jul. 19, 2005 |
| 6796537 |
Lifting base for a LCD monitor |
Sep. 28, 2004 |
| 6766995 |
Adjusting device for a stand |
Jul. 27, 2004 |
| 6761339 |
Leg part for a barber or beauty chair |
Jul. 13, 2004 |
| 6702238 |
Adjustable supporting device for a display panel |
Mar. 9, 2004 |
| 6659417 |
Elevating device for adjusting a telescopic tube used to support a musical instrument |
Dec. 9, 2003 |
| 6572059 |
Camera pedestal |
Jun. 3, 2003 |
| 6523799 |
Adjustable-height stand |
Feb. 25, 2003 |
| 6478269 |
Longitudinally adjustable leg assembly |
Nov. 12, 2002 |
| 6390424 |
Accessory support device and method |
May. 21, 2002 |
| 6378446 |
Counterbalance apparatus |
Apr. 30, 2002 |
| 6361110 |
Tilt control for chair |
Mar. 26, 2002 |
| 6352308 |
Support frame device for connecting a seat portion to an upright post |
Mar. 5, 2002 |
| 6276756 |
Height adjusting assembly for a chair |
Aug. 21, 2001 |
| 6224155 |
Vertical height adjustment mechanism for chairs |
May. 1, 2001 |
| 6199806 |
Longitudinally displaceable column |
Mar. 13, 2001 |
| 6186467 |
Full seat adjustable suspension |
Feb. 13, 2001 |
| 6182583 |
Height adjustable pedestal for chairs and tables |
Feb. 6, 2001 |
| 6116690 |
Height adjustable work chair having a non-swivel seat |
Sep. 12, 2000 |
| 6073903 |
Linear force actuators |
Jun. 13, 2000 |
| 6056251 |
Adjustable-height column with depth spring action |
May. 2, 2000 |
| 6022077 |
One-shot pedestal swivel seat lock/release mechanism |
Feb. 8, 2000 |
| 6015130 |
Leak-proof hydraulic device for supporting a barber's chair |
Jan. 18, 2000 |
| 5992815 |
Height-adjustable column with a transmitting mechanism |
Nov. 30, 1999 |
| 5984567 |
Molded split sleeve bushing for chair base |
Nov. 16, 1999 |
| 5944290 |
Rotationally secured column |
Aug. 31, 1999 |
| 5931533 |
Seat height adjustment |
Aug. 3, 1999 |
| 5931536 |
Adjustable armrest of a chair |
Aug. 3, 1999 |
| 5829733 |
Adjustable height shock absorbing bicycle seat mounting assembly |
Nov. 3, 1998 |
| 5826935 |
Automatic bicycle seat adjuster |
Oct. 27, 1998 |
| 5820088 |
Camera pedestal drive column |
Oct. 13, 1998 |
| 5802988 |
Vertically adjustable table |
Sep. 8, 1998 |
| 5765804 |
Pneumatic support colunm for a chair |
Jun. 16, 1998 |
| 5740997 |
Pneumatic height adjustment column for a chair |
Apr. 21, 1998 |
| 5729108 |
Manual control system for camera mountings |
Mar. 17, 1998 |
| 5702083 |
Pneumatic cylinder of a pneumatic lever-lift chair, and its assembly process |
Dec. 30, 1997 |
| 5690304 |
Adjustable mounting system |
Nov. 25, 1997 |
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