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Class Information
Number: 280/493
Name: Land vehicles > Wheeled > Articulated vehicle > Plural articulation axes > Tow bar
Description: Devices in which the vehicles are connected together by a rigid draft member which is articulated at each end to one of the vehicles.










Sub-classes under this class:

Class Number Class Name Patents
280/494 Horizontal pivot with vertical or universal pivots 101


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8690180 Towing adapter Apr. 8, 2014
8690181 Tow bar having compact swivel unit with pin-less stowing lobes Apr. 8, 2014
8662523 Light-weight tow bar and leg lock therefor Mar. 4, 2014
8641076 Pivoting hitch assembly Feb. 4, 2014
8622429 Swiveling wheel trailer with easy loading tilting hitch, three point resting position, steering geometry and receiver hitch coupling Jan. 7, 2014
8544867 Tow bar balance system Oct. 1, 2013
8454032 Self-propelled lawn mower and sulky device Jun. 4, 2013
8439388 Universally pivotal tow bar assembly May. 14, 2013
8376381 Versatile, collapsible cart-trailer with modular components Feb. 19, 2013
8366137 Tow bar having leg lock with opposing latch elements Feb. 5, 2013
8360459 Cart transporting apparatus Jan. 29, 2013
8292318 Adaptable drawbar support assembly Oct. 23, 2012
8282118 Tow bar assembly apparatus Oct. 9, 2012
8128116 Tow bar and releasable lock for tow bar leg Mar. 6, 2012
8096571 Tractor hitch assembly and trailer with hydraulic pump Jan. 17, 2012
8066299 Trailer hitching and tracking steering Nov. 29, 2011
8056919 Tow bar and leg latching mechanism therefor Nov. 15, 2011
7959180 Tow bar Jun. 14, 2011
7959179 Tow bar having lunette ring head and fishtail-reducing cammed equiangularly-oriented tow bar legs Jun. 14, 2011
7942435 Tow bar May. 17, 2011
7871097 Pivoting hitch assembly Jan. 18, 2011
7766362 Method and apparatus for the lineal, straight, reverse movement of one or more vehicles in tow behind a prime mover Aug. 3, 2010
7712751 Lawn mower sulky May. 11, 2010
7600774 Cam action tightening receiver hitch assembly Oct. 13, 2009
7540524 Device for detecting a support load Jun. 2, 2009
7510205 Semitrailer for articulated lorries with adjustable-height loading platform Mar. 31, 2009
7506889 Tow-bar mount for a HMMWV or other vehicle Mar. 24, 2009
7503577 Backable tow bar adapter, and method Mar. 17, 2009
7445226 Tow bar having a single moving part for operatively accommodating pitch and roll movements between a towing vehicle and a towed vehicle Nov. 4, 2008
7267354 Towing device Sep. 11, 2007
7131666 Off-road vehicle trailer Nov. 7, 2006
7032919 Tow bar for vehicle Apr. 25, 2006
7021646 Adjustable receiver hitch Apr. 4, 2006
7011329 Tow bar with torsion spring lift assist and method Mar. 14, 2006
6991247 Tow bar having a single moving part for operatively accommodating pitch and roll movements between a towing vehicle and a towed vehicle Jan. 31, 2006
6959942 Ball hitch for an implement drawbar of an agricultural vehicle Nov. 1, 2005
6902182 Hitch device Jun. 7, 2005
6857651 Aircraft ground support vehicle tow-bar Feb. 22, 2005
6637760 Sulky for self propelled lawn mower Oct. 28, 2003
6467790 Restraint harness Oct. 22, 2002
6375201 Walk behind mower sulky apparatus with improved operator platform attachment means Apr. 23, 2002
6364338 System for towing small four wheeled vehicles Apr. 2, 2002
6283490 Vehicle towing bar assembly Sep. 4, 2001
6135485 Pivotal towbar torsional spring Oct. 24, 2000
6062582 Lawn mower riding sulky May. 16, 2000
5967541 Towing head Oct. 19, 1999
5947505 Lawn mower riding sulky Sep. 7, 1999
5909887 Mower sulky Jun. 8, 1999
5873229 Coupling arrangement Feb. 23, 1999
5863059 Tractor hauling method and apparatus Jan. 26, 1999

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