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Class 280/508 - Self-coupling


Subclass of Class 280 - Land vehicles
Definition: Devices in which the opposing coupling members automatically
No. of patents: 102
Last issue date: 10/04/2011


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NumberTitleIssue Date
8029012Device, system and method for automated tow coupling
A tow hook coupling device to automatically align and couple a tow hook of a first vehicle onto a female member of a second vehicle when the two vehicles are brought into proximity. The female member has a lateral attachment that is suitable to be grabbed by a hook,...
10/04/2011
7434826Self-locking scissor coupler for attaching a trailer to a trailer hitch ball
A self-locking scissor coupler, provision for holding guide poles, for attaching a trailer to a trailer hitch ball. The coupler includes a body, a pair of movable jaws, and a bail. The body attaches to the trailer. The pair of movable jaws are pivotally mounted to t...
10/14/2008
7416206Drawbar hammer strap pin lock
A drawbar hammer strap assembly design achieves a low profile, and prevents rotation of the drawbar and of the cross pin. The drawbar hammer strap assembly includes a drawbar, a hammer strap member attached to the drawbar, a drawbar pin mountable to drawbar and hamm...
08/26/2008
7378013Gooseneck trailer coupler
A coupler comprised of a coupler housing having a first opening formed therein. The opening has a concave cavity. A cylindrical socket is formed within the housing. A second opening in the housing communicates with the cylindrical socket. A lock ring is provided, th...
05/27/2008
7367745Securing assembly for use between a bike trailer and a bike
A securing assembly for a bike and a bike trailer includes a securing body provided with a gap defined in the securing body and composed of two plates each provided with an elongated hole and a cutout to respectively correspond to and align with the elongated hole a...
05/06/2008
7364181Self locking coupling device
A coupling device that requires no manual actuation to achieve coupling features a locking bolt movable along a hole extending into a mouth of a hook body to secure a coupling pin therein. A control lever pivotally connected to the locking bolt opposite the mouth en...
04/29/2008
7237788Boat loading system
A system enables a boat to be loaded from water onto a trailer that is partially submerged on a ramp at the edge of the water. One part of the system is a connector that is mounted on the keel of the bow. Another part of the system is a transversely mounted removabl...
07/03/2007
7225883Device for coupling implement to agricultural tractor
The invention relates to a device for a coupling an agricultural implement to an agricultural tractor, in which the operation to release the coupling between the agricultural implement and the agricultural tractor can be easily implemented. When the coupling ...
06/05/2007
7192047Trailer coupling for a vehicle
A trailer coupling (1) for a vehicle, in particular a tractor, has a coupling element (6). This coupling element (6) can grasp a drawbar (4) of a trailer and is displaceable between a coupling position and a release position. The coupling...
03/20/2007
7125033Towing apparatuses
Towing apparatuses suited for use with, for example, three-point hitches or quick hitches. At least some of the present towing apparatuses include a male hitch member that is positioned such that a force acting through the male hitch member (such as a force transmit...
10/24/2006
7059419Tractor hitch lift arm adaptor
An adapter that converts a tractor hitch coupling from a ball and pin type to a hook type. The adapter is a tubular member having an opening at one end into which an end of the hitch arm is inserted and a hook extends therefrom at the opposite end. A locking dog is ...
06/13/2006
7004489Connection device for interconnecting tugger carts
A connection device is provided for interconnecting first and second tugger carts. The connection device includes a striker element projecting from the first tugger cart. A connecting arm is pivotably connected to the second tugger cart and includes a terminal end t...
02/28/2006
6908093Kingpin coupler
A kingpin coupler for allowing a user to connect a trailer having a kingpin to a towing vehicle. The kingpin coupler includes a head assembly, casting, jaws and a locking slide bar. The jaws are pivotably mounted in the housing and are biased into the open position ...
06/21/2005
6908098Non-rotating hitch ball
An attachment to prevent rotation of a hitch ball assembly where the assembly has a ball supported by a neck on a base and has a mounting shaft. The attachment comprises a plate having top and bottom surfaces and an passageway for receiving the mounting shaft. The t...
06/21/2005
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
6758285Coupling for coupling pulled implements or trailer having a drawbar to a tractor
A coupling for coupling, for example, a trailer having a drawbar (2) to a tractor with a three-point linkage device, which has two height-adjustable lower steering arms (3, 4) of which one is laterally adjustable by a lateral strut (11). A first...
07/06/2004
6698783Trailer hitch guide
The invention is an articulated frame for attachment to a trailer hitch for purposes of facilitating alignment and coupling of the trailer hitch to a vehicle hitch....
03/02/2004
6695337Pivotal pin lock for fifth wheel hitch
An improvement to a fifth wheel hitch providing a pivotal pin lock to retain a kingpin of a fifth wheel trailer within a front opening of the fifth wheel hitch during the loading process prior to engaging the pin in the fifth wheel hitch, the pivotal pin ...
02/24/2004
6669224Docking assembly
A docking assembly configured to allow a first medical device to move with a second medical device includes a hitch, a base, and a connector. The hitch is configured to be coupled to the first medical device. The base is spaced apart from the hitch and is...
12/30/2003
6619687Quick hitch drawbar assembly
The quick hitch drawbar assembly accepts a standard yoke hitch but simplifies the tractor/scraper connection. Holes in the drawbar are replaced with slots which are angled to prevent accidental disconnection. These slots are wider at the top to simplify a...
09/16/2003
6588790Trailer coupler
A selectively remotely actuated coupler which comprises a coupler for trailers, automatic locking mechanism to secure said trailer to a towing vehicle ball, a remotely actuated release assembly for unlocking said automatic locking mechanism attached to sa...
07/08/2003
6557275Vehicle hitch mount assembly for a snow plow
Hitch mount for hydraulically driven snow blades or other accessories that includes a mounting frame for mounting to the vehicle chassis and a one piece plow assembly and lift frame readily removably coupled to the mounting frame, the plow assembly prefer...
05/06/2003
6488306Mobility platform coupling device and method for coupling mobility platforms
A coupling device for connecting a first mobility platform to a second mobility platform in tandem. An example mobility platform is a robot. The coupling device has a loose link mode for normal steering conditions and a locking position, tight link mode f...
12/03/2002
6467793Gooseneck coupler
A coupling device (10) for allowing a user to connect a trailer (104) having a gooseneck assembly to a hitch ball (102) of a towing vehicle (106). The coupling device includes a housing (12), jaws (24 and 26) and a locking mechanism (32). The jaws are piv...
10/22/2002
6390490Quick connect tractor hitch coupling
A quick hitch coupling for use with a powered machine and a drawn machine. The coupling comprises a receiving unit attached to forward end of an implement in a substantially stationary position and an engaging unit attached to the powered machine which ma...
05/21/2002
6363629Vehicle hitch mount assembly for a snow plow
Hitch mount for hydraulically driven snow blades or other accessories that includes a mounting frame for mounting to the vehicle chassis and a one piece plow assembly and lift frame readily removably coupled to the mounting frame, the plow assembly prefer...
04/02/2002
6336683Fixed platform self-propelled trailer dump
The present invention provides a self-propelled trailer dump truck which can convey earth and sand at an amount substantially corresponding to two dump trucks by one conveying operation without overloading, whereby excellent effects can be obtained on an ...
01/08/2002
6224084Trailer coupler
A trailer coupler is described in which a pair of elongated hitch capturing members, each having a hitch socket part at a forward end are mounted to a base member for selective movement forward and rearwardly between a forwardly extended and open hitch re...
05/01/2001
6193259Mounting frame for use with three point hitch
A mounting frame 10 is intended to be used with a three point hitch apparatus 4 on the rear of powered vehicle, such as a tractor. The frame 10 is rectangular so that the center is open to permit clearance for a power take off. A ball socket 20 is mounted...
02/27/2001
6186532Trailer coupler
A trailer coupler in which a pair of hitch capturing members, each having a hitch socket are movable relative to one another and to a base member. The base member mounts the hitch capturing members for selective movement between a forwardly extended and o...
02/13/2001
6164681Automatic hitch coupler
A pivotal guide for a trailer hitch which guides a trailer socket to engage a hitch ball when the user forces the trailer guide to engage the trailer socket. A base plate is pivotally connected to a hitch bar, which when a trailer tongue engages a base pl...
12/26/2000
6113125Ball hitch coupler
A ball hitch coupler which provides a simplified structure for coupling a ball hitch mounted on a towing vehicle to a coupler mounted on a trailer. This invention provides an innovative single cam pin locking mechanism, which in combination with a safety ...
09/05/2000
6095544Fifth wheel hitch release
A fifth wheel hitch operable between a fully locked condition and a fully released condition, having a top hitch plate and a lock jaw, a locking plunger shiftable between a biased, extended locking position engaging the jaw and a retracted position for re...
08/01/2000
6047982Hitch for agricultural implement
A hitch assembly for coupling a first agricultural implement, such as a forage wagon, to a second agricultural implement, such as a self propelled or pull type forage harvester. The hitch assembly includes a substantially vertical hitch pin affixed to the...
04/11/2000
5997025Self locking trailer hitch
A trailer hitch (10) including a pair of clamping jaws (12) and a retractable jaw locking member in the form of a wedge block (84) that is spring biased to move between the jaws (12) in order to lock the jaws in a closed position about a hitch ball. A lat...
12/07/1999
5988666Fifth wheel hitch release
A fifth wheel hitch operable between a fully locked condition and a fully released condition, having a top hitch plate and a lock jaw, a locking plunger shiftable between a biased, extended locking position engaging the jaw and a retracted position for re...
11/23/1999
5967541Towing head
A towing head is provided including three primary members. The first member is stationary and includes a channel which receives the tow pin or towing fitting of an aircraft. The second member pivotally attaches to the first member and itself includes a ch...
10/19/1999
5951036Adjustable coupler for a weight distributing trailer hitch apparatus
An adjustable coupler apparatus for a trailer hitch includes a drawbar assembly and a hitch head assembly. The drawbar assembly is interconnected to a tow vehicle and includes an elongate bar and a drawbar angle adjuster that is pivotally interconnected a...
09/14/1999
5938227Winch driven ball joint hitch guidance system
A winch driven cable guidance system for coupling trailers to tow vehicles. The system comprises of trailer having a trailer hitch coupler, a tow vehicle having a coupling ball joint, and a cable whereby one end of the cable is connected by means of a cab...
08/17/1999
5839759Vehicle capture device
A vehicle capture device and method of utilizing such to stop the progress of a fleeing vehicle. The device is mounted to the front of a chase vehicle and includes arms which include hook portions that are capable of initially extending outwardly under po...
11/24/1998
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