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Class Information
Number: 187/272
Name: Elevator, industrial lift truck, or stationary lift for vehicle > Having specific load support drive-means or its control > Includes fluid supporting ram in drive-means
Description: Drive-means* including a fluid powered mechanism attached to the load-underlying support surface of the elevator having two concentric telescopic components which bear a portion of the weight of the load-underlying support surface and move it along the shaft* when telescoped.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604452 |
Cantilevered pallet positioner with safety devices |
Oct. 20, 2009 |
| 7311179 |
Elevator dampening system |
Dec. 25, 2007 |
| 7225898 |
Lift |
Jun. 5, 2007 |
| 7175001 |
Apparatus for driving raising and lowering of lift for tower type storehouse |
Feb. 13, 2007 |
| 7168904 |
Portable vehicle storage platform |
Jan. 30, 2007 |
| 6742629 |
Valve control unit for a hydraulic elevator |
Jun. 1, 2004 |
| 6719099 |
Integral elevator hydraulic power unit |
Apr. 13, 2004 |
| 6662905 |
Elevator which counterweight is also the plunger of the propelling fluid dynamic device which produces and controls the movements thereof |
Dec. 16, 2003 |
| 6659231 |
Self-balancing synchronization assembly for a hydraulic elevator |
Dec. 9, 2003 |
| 6634462 |
Free link system for precise control |
Oct. 21, 2003 |
| 6571919 |
Removable cylinder arrangement for lift |
Jun. 3, 2003 |
| 6510780 |
Ball screw driven pump |
Jan. 28, 2003 |
| 6499567 |
Hydraulic power unit for an elevator drive |
Dec. 31, 2002 |
| 6488129 |
Cooling device for a drive means of an elevator |
Dec. 3, 2002 |
| 6431322 |
Plunger guide for a telescopic jack in a hydraulic elevator |
Aug. 13, 2002 |
| 6422349 |
Hydrostatic displacement drive for lifting and lowering and holding loads, in particular for lifts |
Jul. 23, 2002 |
| 6378660 |
Hydraulic elevator without a machineroom |
Apr. 30, 2002 |
| 6371254 |
Jack arrestor |
Apr. 16, 2002 |
| 6354769 |
Apparatus and method for replacing in-ground elevator cylinder casings |
Mar. 12, 2002 |
| 6343892 |
Drilling tower |
Feb. 5, 2002 |
| 6290026 |
Hydraulic elevator |
Sep. 18, 2001 |
| 6247559 |
Elevator with machine room below |
Jun. 19, 2001 |
| 6206145 |
Brake apparatus for a hydraulic elevator |
Mar. 27, 2001 |
| 6183187 |
Integrated lift and tow hitch |
Feb. 6, 2001 |
| 6148961 |
Lift driving device |
Nov. 21, 2000 |
| 6098759 |
Hydraulic elevator |
Aug. 8, 2000 |
| 6044933 |
Hydraulic elevator |
Apr. 4, 2000 |
| 6039151 |
Backup apparatus for a hydraulic elevator brake control |
Mar. 21, 2000 |
| 5906252 |
Oil pressure auxiliary escape device of elevator |
May. 25, 1999 |
| 5878845 |
Auxiliary emergency escape device of elevator |
Mar. 9, 1999 |
| 5860491 |
Hydraulic lift system and method for retrofitting |
Jan. 19, 1999 |
| 5848670 |
Lift pin guidance apparatus |
Dec. 15, 1998 |
| 5842544 |
Apparatus for housing printed circuit board |
Dec. 1, 1998 |
| 5810118 |
Elevator position lock |
Sep. 22, 1998 |
| 5810119 |
Jack arrestor |
Sep. 22, 1998 |
| 5803427 |
Structure for mounting an oil-sink motor in an oil tank |
Sep. 8, 1998 |
| 5749442 |
Lead frame magazine fastening structure |
May. 12, 1998 |
| 5690315 |
Compact lifter assembly |
Nov. 25, 1997 |
| 5653311 |
Suspension arrangement for a hydraulic elevator |
Aug. 5, 1997 |
| 5501299 |
Process and apparatus for preventing corrosion of a hydraulic elevator cylinder |
Mar. 26, 1996 |
| 5454625 |
Ice cart |
Oct. 3, 1995 |
| 5277275 |
Mechanical platform closer for cantilever style liftgate |
Jan. 11, 1994 |
| 5195614 |
Hydraulic cushionride elevator |
Mar. 23, 1993 |
| 5176226 |
Tailgate closing mechanism for tailgate hoist |
Jan. 5, 1993 |
| 5056624 |
See-saw motion loading device for a loading-platform |
Oct. 15, 1991 |
| 5038894 |
Drive control apparatus |
Aug. 13, 1991 |
| 4848519 |
Structural support for hydraulic elevator car |
Jul. 18, 1989 |
| 4830146 |
Fluid-pressure elevator |
May. 16, 1989 |
| 4807890 |
Sealing combination |
Feb. 28, 1989 |
| 4807724 |
Hydraulic drive system for elevator |
Feb. 28, 1989 |
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