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Browse by Category: Main > Transportation & Automotive
Class Information
Number: 280/5.2
Name: Land vehicles > Step or abutment ascending type vehicle
Description: Vehicles (1) constructed to permit its parts to be arranged for, or (2) having means combined therewith for ascending or descending steps or similar obstructions.










Sub-classes under this class:

Class Number Class Name Patents
280/5.32 Fulcrum attachment 28
280/5.3 Jack-type attachment (i.e., elevating) 31
280/5.28 Relatively movable running gear portions 42
280/5.22 With endless track 99
280/5.24 With skid or rollerway 29
280/5.26 With spider-type engaging means 54


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8672062 Internal means for rotating an object between gravitationally stable states Mar. 18, 2014
8641050 Apparatus for moving a non-ambulatory individual up and down steps Feb. 4, 2014
8439370 Stair-climbing device May. 14, 2013
8434769 Trailer hitching and tracking steering May. 7, 2013
8231131 Staircase movable cart Jul. 31, 2012
8186469 Mobile robot May. 29, 2012
8170780 Apparatus and method for control of a vehicle May. 1, 2012
8100415 Wheel suspension Jan. 24, 2012
8061460 Stair climbing device Nov. 22, 2011
7841603 Hand truck Nov. 30, 2010
7837201 Assistant apparatus for surmounting barrier Nov. 23, 2010
7669861 Stone block transporting crawler-climber Mar. 2, 2010
7575076 Link-type double track mechanism for mobile robot Aug. 18, 2009
7540504 Step climbing wheelchair Jun. 2, 2009
7503567 Automated wheelchair Mar. 17, 2009
7472767 Wheelchair suspension Jan. 6, 2009
7398843 Reconfigurable robot drive Jul. 15, 2008
7384046 Powered wheeled vehicle capable of travelling on level ground, over uneven surfaces and on stairs Jun. 10, 2008
7083013 Self-leveling and balancing vehicle Aug. 1, 2006
7044481 Wheel assemblies for use with load bearing platforms May. 16, 2006
7036185 Arrangement in a wheel lifting mechanism May. 2, 2006
7017687 Reconfigurable articulated leg and wheel Mar. 28, 2006
6799649 Control of a balancing personal vehicle Oct. 5, 2004
6752400 Moving unit Jun. 22, 2004
6712369 Anti-turnover mechanism of electrical wheelchair Mar. 30, 2004
6454286 Traveling device for smooth and stable movement on uneven and inclined surfaces Sep. 24, 2002
6405816 Mechanical improvements to a personal vehicle Jun. 18, 2002
6402161 Portable stair-climbing load transporting dolly Jun. 11, 2002
6386552 Two-wheel hand truck May. 14, 2002
6357765 Obstacle traversing wheel assembly Mar. 19, 2002
6341784 Motor-driven stair climbing device Jan. 29, 2002
6293560 Suspension arrangement for a wheeled conveyance Sep. 25, 2001
6224068 Baggage pushcart configured for negotiating escalator stairways May. 1, 2001
6223104 Fault tolerant architecture for a personal vehicle Apr. 24, 2001
6217045 Massage table cart Apr. 17, 2001
6164398 Transporting device Dec. 26, 2000
6126176 Fall suppressing device for a vehicle configured to ride on descending and ascending escalators Oct. 3, 2000
6029982 Wheeled vehicle for movement on escalators Feb. 29, 2000
6003624 Stabilizing wheeled passenger carrier capable of traversing stairs Dec. 21, 1999
5868402 Motorized cart Feb. 9, 1999
5833249 Stair climbing hand truck Nov. 10, 1998
5829763 Power assisted lifting device Nov. 3, 1998
5655615 Wheeled vehicle for distributing agricultural materials in fields having uneven terrain Aug. 12, 1997
5653301 Wheel-supported apparatus for climbing and descending stairs Aug. 5, 1997
5624128 Transport system for disabled people Apr. 29, 1997
5603517 Walkers Feb. 18, 1997
5562172 Wheeled vehicle arrangement for distributing agricultural materials in fields having undulations such as soft walled levees and the like Oct. 8, 1996
5560626 Cart for negotiating escalators Oct. 1, 1996
5516127 Cart for negotiating escalators May. 14, 1996
5380075 Footed wheel for irrigation apparatus Jan. 10, 1995

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