Class 280/485 - By single resilient element (e.g., rubber block type)

Subclass of Class 280 - Land vehicles
Definition: Devices in which the resilient means resisting movements
No. of patents: 25
Last issue date: 03/25/2008

Number	Title	Issue Date
7347036	Lawn mower towing device An assembly is provided for towing first and second push-type lawn mowers behind a riding mower. A base plate attachable to the rear of the riding mower releasably holds a tow bar. First and second tow arms are releasably coupled to the tow bar and are each adapted ...	03/25/2008
7334357	Snowplow impact reduction system An improved front hitch assembly is provided for mounting a snowplow to the front of a vehicle. The hitch assembly includes a pair of mounting brackets secured to the vehicle frame, and a pair of receivers releasably connected to the mounting brackets. The plow incl...	02/26/2008
7093845	Motion absorbing hitch A motion absorbing hitch for dampening forces on a towing vehicle from movement of a trailer assembly towed by the towing vehicle includes a towing attachment assembly coupled to a towing vehicle, a trailer attachment assembly pivotally coupled to the towing attachm...	08/22/2006
7011329	Tow bar with torsion spring lift assist and method A tow bar with a torsion spring disposed between the tow bar and a steering arm to urge the tow bar towards an operating position, the torsion spring minimizing the force required by an operator to lift the tow bar. ...	03/14/2006
6957825	Trailer impact suppression apparatus A hitch receiving assembly for connecting a trailer to towing vehicle is disclosed. The hitch receiving assembly includes a first fixed elongate member mountable to a trailer and a second floating hitch receiving member that is separated from the fixed member by a p...	10/25/2005
6874807	Coupling device for a handling trolley A coupling device for a handling trolley comprises a drawbar (22) arranged at the front of the trolley and designed to co-operate with the hook (24) provided at the back of a tractor, in particular a trolley preceding a line of trolleys. The drawbar (	04/05/2005
6581953	Trailer hitch assembly and method for connecting a tractor vehicle and a trailer vehicle with force dampening capabilities A trailer hitch uses a draw bar to interconnect tractor and trailer vehicles. The draw bar includes an elongated shank with a transverse throughway. A resilient cushion is disposed in the throughway. A passageway is associated with the throughway to recei...	06/24/2003
6260873	Isolation hitch An apparatus, interposed between and attached to a drive vehicle and an object to be moved, dampens the force (drive, resistance, inertia, etc.) between them. The apparatus has a rigid structure which is capable of transferring the large forces required t...	07/17/2001
6244613	Self-propelled agricultural machine An articulated self-propelled agricultural machine, in particular, a forage harvester, whose group of rear axles comprise two frame parts having regions thereof arranged one above the other and the frame parts being coupled to one another by a bearing whi...	06/12/2001
5887884	Trailer hitch apparatus A trailer hitch assembly having a connecting arm disposed within a sleeve and pivotally coupled within the sleeve by a bolt. A tongue at the distal end of the arm rests on one or more air cushions which provide damping or shock absorption to the coupled a...	03/30/1999
5868415	Cushion coupler A coupling device for attaching a towed vehicle, such as a trailer, to a towing vehicle, such as a truck, where the coupling device includes a securing assembly for removably securing the coupling device to the towing vehicle, a generally longitudinally e...	02/09/1999
5823560	Two way cushioning trailer hitch Trailer hitch apparatus including dampening mechanisms to simultaneously dampen vibration and shock in a longitudinal direction and vertical direction. The apparatus consists of a hollow draw bar tube capable of being removably coupled to a vehicle mounte...	10/20/1998
5683094	Universal, energy-absorbent trailer hitch The present invention features an energy-absorbent, hitching mechanism for towing trailers and other vehicles by pickup trucks or other tow vehicles. This is a mechanism of the universal type, in which energy absorption is achieved for all transverse and ...	11/04/1997
5487555	Hinge connection between two vehicles connected to each other in an articulated manner Hinge connection between two vehicles, which are connected to each other in an articulated manner such that the two vehicles can be adjusted in relation to one another around a vertical axis, a transverse axis, and a longitudinal axis. Movements around th...	01/30/1996
5064209	Combined trailer/wheelchair The invention relates to a combined trailer/wheelchair which can either be towed behind a powered cart or be manually pushed as a wheelchair and which includes features such as a removable or telescoping tow bar, an articulated hitch mechanism adapted to ...	11/12/1991
4811965	Vehicle hitch A vehicle hitch for automatically connecting a vehicle to a trailer or connecting two vehicles for pushing or pulling one or the other. The hitch includes a coupling member mounted for pivotal movement in generally horizontal and vertical planes and provi...	03/14/1989
4773668	Towing hitch A towing hitch is disclosed which has a housing for receiving a tow bar such that said housing can be pivotally connected to said tow bar. A tongue is coupled to the housing for receiving a towing element. The housing has a pin which project into said tow...	09/27/1988
4596399	Vehicle to vehicle coupling A coupling for use between first and second vehicles has a series of sections joined in line by pivotal connections. One section is a draw bar anchored to the frame of the first vehicle, another is a tow unit connected by transverse pivots to the second v...	06/24/1986
4371184	Bike trailer A cycle trailer comprising a lightweight frame supported on a pair of road wheels and having a draw-bar for attachment to the towing cycle. The connection between the draw-bar and towing cycle comprises a flexible rubber tube clamped to the end of the dra...	02/01/1983
4307893	Trailer hitch A hitch for use in towing a trailer behind a bicycle can be constructed using two elongated elastomeric straps, one end of each of the straps being connected to the bicycle and one end of each of the straps being connected to the trailer....	12/29/1981
4136787	Elastic hinge of a central buffer coupling for rail cars An elastic hinge of a central buffer coupling for rail cars, comprises a bearing housing which has at least one end with a coupling rod receiving opening into which a coupling rod extends. The interior wall of the housing has a plurality of axially spaced...	01/30/1979
4131296	Self-damping trailer hitch A trailer hitch comprising a draw tongue adapted to extend from a trailer, a handle mounted for pivotal movement above the draw tongue, and a cable attached at one end to the handle and extending downwardly through the draw tongue to a hitch coupler which...	12/26/1978
3993320	Resilient hitch for cycle trailer A two-wheeled trailer for towing behind a cycle having a tongue which extends forwardly and on one side of the rear end of the rear wheel of the cycle. The forward end of the tongue is provided with a conveniently disconnectable hitch which is mounted on ...	11/23/1976
3990722	Shock absorbing vehicle coupling A shock absorbing trailer hitch for cushioning end thrust shocks between towing and towed vehicles is disclosed having a base member rigidly attached to one vehicle with a pair of upstanding slide guides thereon and a second member slidably supported with...	11/09/1976
3961813	Trailer hitch This disclosure relates to a trailer hitch for coupling a draft vehicle to a drawn vehicle wherein the eye portion of the hitch includes a molded insert of flexible material having an axial bore extending therethrough adapted to receive the pintle portion...	06/08/1976

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Class 280/485 - By single resilient element (e.g., rubber block type)