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Class 280/510 - Opened by opposite coupling part


Subclass of Class 280 - Land vehicles
Definition: Devices in which one of the coupling members has a movable
No. of patents: 35
Last issue date: 10/14/2008


NumberTitleIssue Date
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
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
7267347Structural assembly for electric scooter
A structural assembly for electric scooter includes a seat mount and a treadboard support. The structural assembly utilizes hook portions on a connecting plate of the treadboard support to hook onto a stud shaft below a joining plate of the seat mount, and further u...
09/11/2007
7264260Adjustable hitch
A quick attach/detach adjustable hitch which allows the operator of a towing vehicle to connect to a trailer without leaving the driver seat. The preferred embodiment includes a lifting carriage connected within a frame by a hydraulic cylinder. Guiding members are u...
09/04/2007
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
7040644Hydraulic three point hitch
A combination of a tractor hydraulic arm assembly and a hitch adapter installed between the two arms of the arm assembly, the hitch adapter consisting of a length of ā€œUā€ shaped steel channel, having a plurality of holes formed in the top surface, with trailer hi...
05/09/2006
7011330Automatic hitch assembly
An automatic hitch may include a base, a support surface, a jaw assembly connected to the base and having engaged and disengaged positions and a biasing member associated with the jaw assembly. The biasing member may be configured to normally bias the jaw assembly t...
03/14/2006
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
6464241Gooseneck trailer hitch
A gooseneck trailer hitch formed of a top plate pivotally attached to a base plate, wherein each plate is formed by investment casting and the components and features of each plate are integrally formed therewith. The top plate is an elongated structure t...
10/15/2002
6394481Draw bar clamp lock
A draw bar clamping locking mechanism for locking and unlocking rapidly a draw bar mounted on the front end of a trolley to the rear end of an automatic guided vehicle. The locking bar mechanism includes a locking bar which is moveable rotatably between a...
05/28/2002
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
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
6099017Trailer hitch quick-lock
A pair of embodiments of latch structures for latching a driving vehicle to a towed vehicle include pivoting lock members. The pivoting lock members are simple to utilize, and do not require complex tooling or assembly operation. With the present inventio...
08/08/2000
6089596Easy attaching hitch
A quick attaching device for attaching a powered vehicle, ordinarily a farm tractor, to an implement without leaving the vehicle. The system is adaptable to implements having either a pulling tongue or having a relatively fixed attachment to the vehicle....
07/18/2000
6070679Powered utility cart having engagement adapters
The present inventive device generally allows a user to easily engage and push or pull heavy and unwieldy object(s), most notably a line of nested shopping carts, effectively and without undue strain. The cart is designed specifically with universal utili...
06/06/2000
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
5839745Lock mechanism for fifth wheel hitch
The lock mechanism for a fifth wheel hitch of the present invention includes a housing mounted on a pedestal, the housing having a hitch plate mounted on the upper end thereof. The hitch plate slot, for receiving a trailer pin, is mounted over a channel e...
11/24/1998
5489112Hitch mount
A support mounting unit is provided for mounting a transportable cart or like apparatus to a vehicle so as to provide an easy method of transport for an apparatus. The mounting unit includes a mounting means for securing the invention to the rear bumper o...
02/06/1996
5439069Nested cart pusher
A powered pusher vehicle for moving a train of nested shopping carts, the vehicle having a main body portion with a central drive wheel powered by an electric motor through a worm gear transmission. Caster wheels support one end of the vehicle for ease of...
08/08/1995
5218737Detachable hopper and vacuum apparatus
A detachable hopper and vacuum apparatus which includes a mobile, detachable hopper adapted for use with the vacuum apparatus of this invention or towed by a tractor or alternative towing vehicle or apparatus, and characterized by a sliding tongue which i...
06/15/1993
5219436Trailer hitch assembly and related method
A trailer hitch assembly is provided for coupling a trailer to a vehicle, the lead vehicle being equipped with a standard ball-type hitch, and the trailer hitch assembly comprising a body securely attached to the trailer, the interior surface thereof form...
06/15/1993
4998745Safety quick hitch
A safety quick-hitch system for coupling over-the-road tractors to utility trailers. A rigid mounting plate is secured to the tow vehicle in place of a conventional pintle-hook hitch assembly. Outwardly flaring walls extend horizontally forwardly from the...
03/12/1991
4793626Trailer hitch
The trailer hitch comprises a channel-shaped body having a bottom wall containing therein two longitudinally offset holes and an elongated slot located forwardly of said holes. Associated with the slot is a trigger mechanism that can be rotated into a per...
12/27/1988
4613149Self-coupling trailer hitch
An automatic trailer hitch assembly mounts a shank unit on the trailer and a receiving unit on the towing vehicle. The shank unit provides an elongated shank member which mounts a trailer ball at one end coupled to a conventional trailer hitch ball socket...
09/23/1986
4502706Tractor hitch frame
A hexagonal hitch frame is provided including short upper and lower horizontal sides and generally horizontal oppositely outwardly projecting mid-heights arms projected outward from the opposite sides of the frame supported from the opposite side apex por...
03/05/1985
4492386Trailer safety device
A trailer safety device for use in conjunction with a trailer hitch is provided having a bracket assembly from which a free-swinging body assembly is suspended. The bracket assembly and body assembly are positioned in spaced relationship above the trailer...
01/08/1985
4475741Three point suspension device for tractors
In the case of the adjustable upper link in a three-point suspension device for a tractor, comprising a locking device in the form of a line fitted with a shut-off device and connecting together the two end-faces of the hydraulic cylinder, the invention s...
10/09/1984
4463965Trailer mounted boat retainer device
A retainer device for use in combination with a boat trailer. The device includes a platform member having a slot formed therein which receives the bow eyelet of a boat. A hook is attached to the platform member and may secure the bow eyelet within the sl...
08/07/1984
4415175Coupler latch mechanism with a self-opening feature
A coupler latch mechanism is disclosed having a self-opening hook-up feature for facilitating the hook-up of an implement to the hitch on a tractor. The coupler latch mechanism includes a latch bar pivotally connected to a coupler frame immediately above ...
11/15/1983
4408778Automatically connecting hitch
An automatic latching device for connecting a tractor drawbar to a wagon or implement being towed in which connecting jaws are adapted to be closed around a pin in the tongue of the pulled device. The device actuating the closing includes a tapered pin ad...
10/11/1983
4348035Towing attachments for attaching trailers to vehicles
Towing attachments for attaching trailers to the end of various vehicles are disclosed, including a tubular sleeve attached to the vehicle, an extension bar having one end rotatably attached to the tow bar of the trailer while the other end is adapted to ...
09/07/1982
4268058Coupler for snowplow
A coupler for rapidly joining a snowplow unit to a prime mover. A horizontally extended tongue is affixed to the push frame of the plow unit which is insertable into a receiving slot contained in the coupler. The tongue is provided with a pair of contoure...
05/19/1981
4121893Ball and socket coupling
A ball and socket coupling in which the ball is positively retained within the socket by means of a cap, removably secured to the socket for closing the open end of the latter and having a hole through which the ball stem extends. The cap hole allows pivo...
10/24/1978
3952431Vehicular carried plow coupling
A coupling between a snow plow and the front of a truck including a housing assembly adapted to be mounted on the truck and a loop and frame member adapted to be mounted on the snow plow. The housing has a convex front surface and a recess in said surface...
04/27/1976
 
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