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Class 280/479.3 - Extensible swingable tow bar with coacting guide for centering


Subclass of Class 280 - Land vehicles
Definition: Vehicles where either the tow bar or trailer tongue is extensible
No. of patents: 65
Last issue date: 06/30/2009


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NumberTitleIssue Date
7552938Quick release telescoping and swiveling hitch assembly
A quick release assembly for remotely actuating operative disconnection between vehicles by decoupling a hitch assembly having a telescopic and swiveling probe assembly carried in a housing assembly and mounted on the towed vehicle. In one embodiment, the release as...
06/30/2009
7425013Continuously adjustable hitch assembly
A ball hitch device mountable upon the rear of a tractor vehicle is interactive with a ball-receiving socket disposed upon a forwardly directed tongue of a trailered apparatus. The ball hitch device includes paired rigid extension arms pivotably secured to the tract...
09/16/2008
7425014Trailer hitch
A trailer hitch facilitating proper alignment and connection to the hitch coupler of a trailer. The trailer hitch includes a tow bar assembly and a throat having spaced parallel top and floor panels generally equal in spacing to a vertical thickness of the tow bar a...
09/16/2008
7293791Telescoping and swiveling hitch assembly
A hitch assembly for connecting a towed vehicle to a towing vehicle include a housing mounted on the towing tongue of the towed vehicle having a tow bar mounted in an internal cavity having a restricted throat. Tow bar can be extended and pivoted to position a hitch...
11/13/2007
7290755Trailer hitch method and apparatus
A fully integrated, self-contained, retrieving trailer hitch for use in coupling heavy laden trailers to large SUV's and RV's. The self-contained module is capable of being plugged directly into a vehicle tow bar hitch receiver and connected to the vehicle's electri...
11/06/2007
7195268Pivoting hitch mount assembly
A pivoting hitch mount assembly for interconnecting a towed vehicle with towing vehicles having hitch positions at varying elevations includes a pivot arm assembly having a hitching component for coupling with a the hitch position with the towing vehicle that is sel...
03/27/2007
7134679Towing device used to facilitate connection of a towing vehicle to a towed vehicle
A towing device is provided for use on a vehicle to facilitate the connection of a trailer hitch to a coupler. The towing device has a frame configured to be securely attachable to an undercarriage of the vehicle. An extension bar movably engages the frame. The mova...
11/14/2006
7131704Shiftable conveyor for road milling machine
A material collection device for particles received from a processing device on a road processing machine. The material collection device comprises a guide having a material discard opening and an attachment face. A conveyor support is shiftably fixed to the guide a...
11/07/2006
7059615Locking mechanism and method for a mower-sulky unit
A sulky apparatus and method are described. The sulky rides behind a self-propelled mower. The sulky apparatus allows the mower operator to ride behind the mower, as the self-propelled mower is guided about a lawn. Common to the sulky apparatus is a swing arm that e...
06/13/2006
7052032Pivotable anti sway trailer hitch
A trailer hitch assembly that can be extended and turned from side to side to facilitate hookup of a vehicle to be towed and that can when not in use be stowed out of the way without removal from the towing vehicle is shown. The hitch assembly also serves to control...
05/30/2006
6997471Multi-hitch apparatus and method
A multi-hitch apparatus and method includes a movable hitch attachment. More than one hitch is connected to the movable hitch attachment wherein the movable hitch attachment is movable between a first position and a second position. According to one aspect of the in...
02/14/2006
6902181Trailer hitch having rapid adjustment
An adjustable trailer hitch assembly which provides rapid and easy coupling by moving the ball to the tongue, rather than by moving the tongue to the ball. Adjustment is provided in each of three axes. Simultaneous movement in the lateral and vertical directions is ...
06/07/2005
6874807Coupling 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
6494477Automatic trailer hitch coupling apparatus
An automatic trailer hitch coupling apparatus having a hitch bar receiver mounted on a platform at the rear end of a towing vehicle, said hitch bar receiver having a square cross section and a flanged rear end into which a hitch bar is removably inserted....
12/17/2002
6428030Self-centering trailer hitch
A self-centering trailer hitch includes first and second telescopic arms, each of the telescopic arms having first and second opposite ends. The first ends of the telescopic arms are pivotally mounted to a hitch hood coupler for coupling the first ends of...
08/06/2002
6357779Hitch assemblies for connecting a trailer to a tow vehicle
An improvement in or relating to a hitch assembly for connecting a trailer to a towing vehicle. The hitch assembly consists of features which are moveable in a telescopic manner and/or in a rotational manner to allow the adjustable repositioning of a coup...
03/19/2002
6328326Self-aligning hitch
A hitch for coupling a towing vehicle and a trailer vehicle, particularly in situations where the vehicles are misaligned. The hitch has a tongue housing for attachment to one of the vehicles and a tongue for extension and retraction within a throat defin...
12/11/2001
6286852Self-aligning hitch
A hitch for coupling a towing vehicle and a trailer vehicle, particularly in situations where the vehicles are misaligned. The hitch has a tongue housing for attachment to one of the vehicles and a tongue for extension and retraction within a throat defin...
09/11/2001
6170852Trailer hitch assembly
A trailer hitch assembly for allowing a user to simultaneously extend and pivot the distal end of the trailer hitch to position the hitch ball in a desired position. The inventive device includes a support frame attachable to a vehicle, a telescoping stru...
01/09/2001
5975552Self-aligning trailer hitch
A trailer hitch which is attached to a vehicle which is towed, such as a trailer, and is used to connect the towed vehicle to a conventional towing ball of a towing vehicle. The trailer hitch of this invention is extendible by the user so as to enable a t...
11/02/1999
5845921Three-dimensionally adjustable trailer hitch
A trailer hitch has a plurality of longitudinally tapered, telescoping members movable between a retracted position substantially contained within a largest of the telescoping members and an extended position in which at least one of the plurality of tele...
12/08/1998
5630606Trailer hitch with extensible throat
A ball and socket trailer hitch with a throat that is capable of automatically seating and locking a telescoping member capable of lateral swinging movement. The hitch allows a stationary towing vehicle having been imprecisely aligned with a stationary tr...
05/20/1997
5580088Manually operated trailer hitch with extendable swinging boom
A trailer hitch has a boom which is slideable from a drawn in position to different extended positions and which independently of its extendability is swingable from a centered position to different sideways angled hook up positions. The trailer hitch is ...
12/03/1996
5547210Trailer hitch
A trailer hitch is designed to be inserted in a conventional square-shaped sleeve or receiver fixed to the back of a vehicle. The hitch includes a sleeve and an arm which is received by and pivots simultaneously with the sleeve....
08/20/1996
5342076Gooseneck trailer hitch
This invention relates to trailer hitches generally and more specifically to a hitch that may be swiveled and extended as necessary to couple a trailer thereto and readily align and lock the hitch in transportation mode. The hitch has a base plate with a ...
08/30/1994
5288096Self aligning hitch
A self aligning hitching device having a tongue support mountable on a vehicle or vehicle hitch. The tongue support has a mounting support so that the tongue support can easily be mounted on a vehicle. A tongue is provided that is mounted in the tongue su...
02/22/1994
5288095Trailer hitch
This invention relates to trailer hitches generally and more specifically to a hitch that may be swiveled and extended as necessary to couple a trailer thereto and readily align and lock the hitch in transportation mode. The hitch has a base plate with a ...
02/22/1994
5277447Trailer hitch with alignment adapter
In a trailer hitch connecting a towing vehicle and an trailing vehicle, each "coupling" member of each vehicle has a support component and an attachment component. An adapter is interposed between and attached to the support component and the attachment c...
01/11/1994
5277446Trailer hitch coupling device
A device for coupling the hitch socket of a trailer to the hitch ball of a tow vehicle is attached to a tongue jack having a centered post. A rigid elongate bar comprising a pair of laterally spaced apart beams is mounted around the tongue post below the ...
01/11/1994
5263734Coupling device for attaching towable implements to a tractor
A coupling device for a tractor has a frame (4) which is mounted on the rear underside (3) of the tractor (1). A drawbar (14), with a coupling member (15), is guided in the frame (4). The drawbar (14) is moved by a slide (18) and can be swung sideways abo...
11/23/1993
5188385Automatic locking proximity trailer hitch
A trailer hitch is provided for a vehicle equipped for the tongue of a trailer with provisions for moving the hitch in and out of the tongue and for angular movement where the tongue is not aligned. The hitch is anchored to an advancing mechanism within t...
02/23/1993
5048854Pivoting quick-connect hitch system
A winch-driven hitch system for coupling trailers to tow vehicles. The system comprises a unitary frame pivotally mounted beneath the bumper of the vehicle by a rigid pivot shaft, which projects upwardly from the center of the frame. A rigid base defines ...
09/17/1991
5011176Adjustable trailer coupling
A coupling device for connecting a towed vehicle to a towing vehicle in which the towed vehicle has a towing bar. There is a telescopic arm received within the towing bar with an end of the telescopic arm pivotally connected to an articulating arm. The ot...
04/30/1991
5009446Self aligning coupling apparatus
A self aligning coupling apparatus for mounting on a towing vehicle or a towed vehicle. Included is an extensible coupler mounted on gimbal axles adapted to tilt up and down and sideways in rotary motion in making a connection to an unaligned vehicle. The...
04/23/1991
4991865Automatic self-aligning trailer hitch
An automatic trailer hitch for use with a draft vehicle is disclosed. This hitch contains devices for attaching its two ends to a trailer and to a vehicle for towing the trailer. When the hitch is being connected to the vehicles, it may be extended in len...
02/12/1991
4951957Trailer hitch
A wide-range hitch assembly which mounts on a towing vehicle is provided wherein a hitch ball can be pivoted in an arc and extended or retracted to simplify mating the hitch ball with a cooperating ball hitch fitted on a towed vehicle. The present inventi...
08/28/1990
4944525Self locking trailer hitch
A self-locking trailer hitch has a frame arranged for attachment to a vehicle, a housing arranged to slide longtudinally on the frame between extended and retracted positions, a swing bar pivotally attached to the housing to swing laterally about a vertic...
07/31/1990
4893829Self aligning coupling apparatus
A self aligning coupling apparatus for mounting on a towing vehicle or a towed vehicle. Included is an extensible coupler mounted on gimbal axles adapted to tilt up and down and sideways in rotary motion in making a connection to an unaligned vehicle. The...
01/16/1990
4811967Trailer hitch
A hitch for connecting a trailer to a tow vehicle includes a hitch bar which projects from the tow vehicle and a hitch box which receives the end of the hitch bar and is coupled to one trailer through a hitch ball and a socket-type coupler. The hitch bar ...
03/14/1989
4802686Trailer hitch
A trailer hitch for connecting a trailer to a hitch ball on a towing vehicle. There are two converging sides arranged as a V which has an apex at the hitch ball receiving area. A top plate covers extends over most of the sides. There are a pair of holes i...
02/07/1989
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