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Class Information
Number: 280/47.21
Name: Land vehicles > Wheeled > Tiltable vehicles, stabilized by attendant or article > Handle-propelled vehicles > With shiftable main axle support
Description: Vehicles in which the axle or axles about which the body is tiltable are shiftable or adjustable to vary the axle and wheel position relative to the body or to the center of gravity of its load, either to facilitate loading or transporting the load.










Sub-classes under this class:

Class Number Class Name Patents
280/47.22 Spring suspension 12


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8240682 Jackhammer trolley Aug. 14, 2012
8091904 Diver's station and umbilical cart Jan. 10, 2012
7934728 Swivel and stop-limit feature on wheelbarrows for automatic load adjustment May. 3, 2011
7510208 Stroller pack Mar. 31, 2009
7487976 Hand truck Feb. 10, 2009
7322583 Ergonomic telescoping handle assembly for wheeled luggage Jan. 29, 2008
7207576 Ice cart Apr. 24, 2007
7168712 Multi function hand truck Jan. 30, 2007
6988738 Combination unit of a golf cart and a golf bag Jan. 24, 2006
6945545 Multi function hand truck Sep. 20, 2005
6935447 Stair-climbing hand truck Aug. 30, 2005
6926292 Canoe cart Aug. 9, 2005
6811162 Front wheel adjusting device for a golf cart Nov. 2, 2004
6769702 Reinforced and wheeled refuse container Aug. 3, 2004
6708995 Utility cart Mar. 23, 2004
6575690 Hay bale cart Jun. 10, 2003
6561529 Versatile portable cart May. 13, 2003
6530740 Hand truck with electrically operated lifting platform Mar. 11, 2003
6474663 Combined pair of ladders and transportation dolly device Nov. 5, 2002
6397960 Transporting device Jun. 4, 2002
6273438 Hand truck Aug. 14, 2001
6059299 Machine for transporting equipment May. 9, 2000
6050576 Ground level loading cart Apr. 18, 2000
5810543 Convertible barrow for ground level loading Sep. 22, 1998
5765702 Wheeled merchandise display rack Jun. 16, 1998
5709397 Heavy equipment moving dolly Jan. 20, 1998
5593271 Convertible barrow for ground level loading Jan. 14, 1997
5484154 Wheeled accessory for equipment stands Jan. 16, 1996
5328182 Trolley climbable on staircase Jul. 12, 1994
5249908 Movable pallet assembly with a swivel front wheel mechanism Oct. 5, 1993
5160153 Barrow having high and low positioned wheels Nov. 3, 1992
5123187 Combined snow scoop and multipurpose handcart Jun. 23, 1992
5118124 Hand Trolley Jun. 2, 1992
5106113 Wheel support structure for a cart Apr. 21, 1992
5042827 Automatically shifting stair climber structure for a repositionable hand truck Aug. 27, 1991
5024458 Portable luggage carrier with pivotable wheels Jun. 18, 1991
4919442 Leverage lifting cart Apr. 24, 1990
4900044 Side loading hand truck and method Feb. 13, 1990
4865339 Hand truck Sep. 12, 1989
4846493 Portable cooler with retractable wheels Jul. 11, 1989
4762333 Repositionable hand truck Aug. 9, 1988
4756540 Wheeled mechanism Jul. 12, 1988
4735424 Utility hand cart Apr. 5, 1988
4681330 Hand truck Jul. 21, 1987
4653765 Drum truck Mar. 31, 1987
4645262 Camp chair that converts to a hand truck Feb. 24, 1987
4639005 Carriage apparatus for saw tables Jan. 27, 1987
4607856 Combination cart and boat boarding steps Aug. 26, 1986
4588197 Modular hand cart May. 13, 1986
4561674 Multipurpose hand truck with movable wheels Dec. 31, 1985

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