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Class Information
Number: 280/423.1
Name: Land vehicles > Wheeled > Articulated vehicle > Semitrailer
Description: Vehicles in which there is provided a tractor capable of independent use and an unbalanced trailing vehicle having running gear at the rear end thereof, the forward end of the trailer being supported on the back of the tractor at or forward of the rear axle of the tractor by an articulated connection or fifth wheel which connection transmits all of the draft.










Sub-classes under this class:

Class Number Class Name Patents
280/425.1 Coupling and uncoupling with facilitating lift means 32
280/441.2 Detachable or shiftable gooseneck type 106
280/433 Fifth wheel only 263
280/427 Interrelated operation of coupling, landing gear, and brake 6
280/424 Passenger carrying type 6
280/432 Safety devices 251
280/426 Steering by articulative movement 103


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8657324 Tractor-trailer hose support Feb. 25, 2014
8590917 Fifth-wheel trailer with an adjustable floor and a method for its use Nov. 26, 2013
8544888 Aluminum flatbed with unique front connection Oct. 1, 2013
8485544 Method and apparatus for making galvanized upper coupler assembly Jul. 16, 2013
8474871 Vehicle frame Jul. 2, 2013
8434778 Semi-trailer for transporting circular objects May. 7, 2013
8419065 Aluminum flatbed with unique front connection Apr. 16, 2013
8419032 Suspension system for a steerable trailer Apr. 16, 2013
8256799 Aluminum flatbed with unique front connection Sep. 4, 2012
8220817 Semi-trailer for transporting circular objects Jul. 17, 2012
8167329 Fifth-wheel trailer with an adjustable floor and a method for its use May. 1, 2012
8152200 Heavy equipment trailer with deck extension Apr. 10, 2012
8096583 Aluminum flatbed with unique front connection Jan. 17, 2012
8052163 Connector bracket for a semitrailer of a semitrailer truck Nov. 8, 2011
7959178 Connector bracket for a semitrailer of a semitrailer truck Jun. 14, 2011
7950685 Method and apparatus for transitioning a heavy equipment hauling rear loading trailer between transport and loading positions May. 31, 2011
7832767 Aluminum flatbed with unique front connection Nov. 16, 2010
7829165 Trailer wall composite liner with integral scuff panel Nov. 9, 2010
7810831 Vehicle hitch with multi-directional damping Oct. 12, 2010
7512472 Computer program for stability enhancing system for prime mover and auxilairy vehicle Mar. 31, 2009
7463139 Method and system for driving a vehicle trailer tow connector Dec. 9, 2008
7447585 Stability enhancing system for tow-vehicle towing trailer-assembly with trailer sensors Nov. 4, 2008
7422225 Trailer apparatus and assembly for transportation of wheeled vehicles Sep. 9, 2008
7245033 Auxiliary heating and air conditioning unit for a diesel powered transport vehicle Jul. 17, 2007
7234905 Apparatus for attaching a hitch to a vehicle Jun. 26, 2007
7219913 Articulated vehicle wheel tracking mechanism May. 22, 2007
7163226 King pin security device Jan. 16, 2007
7140633 Fifth wheel mounting and cross member assembly Nov. 28, 2006
7007966 Air ducts for portable power modules Mar. 7, 2006
6893039 Fifth wheel coupling May. 17, 2005
6802521 Trailer wall construction Oct. 12, 2004
6802535 Support device Oct. 12, 2004
6729817 Stackable shipping trailer May. 4, 2004
6659491 Trailer system Dec. 9, 2003
6629700 Gooseneck trailer hitch offset system Oct. 7, 2003
6600974 Method and device for identifying a rolling motion in a vehicle Jul. 29, 2003
6450523 Steering method for a trailing section of an articulated vehicle Sep. 17, 2002
6439639 Trailer hitch enclosure device Aug. 27, 2002
6431564 Add-on self tracking axle for a vehicle Aug. 13, 2002
6264337 Vehicle safety system Jul. 24, 2001
6231064 Automotive transport tractors, semi-trailers, trailers and combinations thereof May. 15, 2001
6186530 Trailer hitch and extension coupling for use therewith Feb. 13, 2001
6109641 First-in/first-out tractor and semi-trailer cargo transfer system Aug. 29, 2000
6045316 Fifth wheel rollback trailer Apr. 4, 2000
5980048 Vehicle safety system Nov. 9, 1999
5931519 5th wheel truck tailgate, its manufacture and uses thereof Aug. 3, 1999
5890728 Extension coupling for use with trailers Apr. 6, 1999
5851047 Fifth wheel adaptable tonneau cover for pickup Dec. 22, 1998
5785341 Pneumatic isolator stabilizing assembly Jul. 28, 1998
5758890 Locking system for a semitrailer chassis and removable container Jun. 2, 1998

1 2 3










 
 
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