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Browse by Category: Main > Transportation & Automotive
Class Information
Number: 280/474
Name: Land vehicles > Wheeled > Articulated vehicle > Selectively rigid or flexible
Description: Devices in which the draft connection between the articulated vehicles includes at least one joint which may be adjusted to constitute either a rigid or a movable connection during operation of the vehicles.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8678422 Adjustable hitch device Mar. 25, 2014
8556286 Towable impact attenuator Oct. 15, 2013
8511702 Anti-jackknife system for backing-up a trailer Aug. 20, 2013
8388012 Towable impact attenuator Mar. 5, 2013
8333401 Central multi directional transmission system Dec. 18, 2012
8272662 Coupler assembly Sep. 25, 2012
8271164 Guidance system for an agricultural implement Sep. 18, 2012
8225895 Robotic vehicle with multiple tracked mobility platforms Jul. 24, 2012
8136830 Towable impact attenuator Mar. 20, 2012
8011684 Trailer towing-control apparatus Sep. 6, 2011
7997608 Pin box assembly for trailer Aug. 16, 2011
7976051 Dolly alignment guide for large, multi-trailer/van rigs Jul. 12, 2011
7946606 Converter dolly backup device May. 24, 2011
7874572 Towable impact attenuator Jan. 25, 2011
7845668 Dual trailer with lifting wheels for transport when empty Dec. 7, 2010
7784812 Central multi directional transmission system Aug. 31, 2010
7766362 Method and apparatus for the lineal, straight, reverse movement of one or more vehicles in tow behind a prime mover Aug. 3, 2010
7712761 Extension coupling for interconnecting trailer and tow hitch May. 11, 2010
7527279 Trailer hitch assembly May. 5, 2009
7494154 Powered maneuverable and retractable trailer jack device Feb. 24, 2009
7464955 Articulated vehicle Dec. 16, 2008
7044493 Trailer hitch tow bar assembly May. 16, 2006
7032918 Stabilization of an articulated vehicle Apr. 25, 2006
6991246 Trailer hitch assembly Jan. 31, 2006
6866284 Crash attenuator for vehicle and method for transporting such attenuator Mar. 15, 2005
6749213 Drawbar support assembly Jun. 15, 2004
6712380 Trailer Mar. 30, 2004
6591918 Agricultural tractor hitch Jul. 15, 2003
6523629 Tandem mobile robot system Feb. 25, 2003
6488306 Mobility platform coupling device and method for coupling mobility platforms Dec. 3, 2002
6443475 Movable drawbar control system Sep. 3, 2002
6340167 Anti-jackknife trailer coupling Jan. 22, 2002
6116631 Shock absorbing trailer hitch assembly Sep. 12, 2000
6109814 "Float/no-float" mechanism for 3-point hitch Aug. 29, 2000
5823268 Trailer hitch anti-sway device Oct. 20, 1998
5823271 Lifting rod for the three-point attaching device of a tractor Oct. 20, 1998
5725231 Trailer hitch Mar. 10, 1998
5658003 Trailer system Aug. 19, 1997
5601146 Hitch assembly for a tractor Feb. 11, 1997
5531468 Trailer articulation device Jul. 2, 1996
5528886 Hitching arrangement for a mower deck Jun. 25, 1996
5509682 Fifth wheel hitch assembly Apr. 23, 1996
5404958 Lifting structure for an agricultural tractor Apr. 11, 1995
5308100 Trailer coupler assembly May. 3, 1994
5201539 Actuating mechanism for a hitch guidance system Apr. 13, 1993
5152545 Trailer tow bar lift mechanism Oct. 6, 1992
5050901 Two-way shock proof and shock absorbing towing coupling Sep. 24, 1991
4993738 Antijackknife device for towed trailer Feb. 19, 1991
4917406 Length-adjustable holding device for the lower steering arm of a three-point coupling device Apr. 17, 1990
4862971 Sway limiting means for a tractor hitch Sep. 5, 1989

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