...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7673895 | Universal gooseneck to fifth wheel hitch converter A converter apparatus for connecting a fifth wheel-type trailer to a towing vehicle having a ball hitch extending above a bed thereof, the apparatus including a horizontal first body member; a clamping mechanism releasably securing the first body member to the ball ... | 03/09/2010 |
| 7207587 | Remote controlled hydraulic gooseneck for tractor trailers A gooseneck for connecting a tractor to a trailer. The gooseneck has a remotely controlled unit for operating the hydraulic and pneumatic systems that provide for moving a slidable king pin plate to different loading positions so as to balance the load for over-the-... | 04/24/2007 |
| 7156591 | High mobility recovery trailer The invention in a preferred form includes a frame assembly having a load bearing surface and a hitch engagement. The hitch engagement includes a lifting bar and a hitch guide. A bogey assembly may be further attached to the frame. The bogey assembly may include a w... | 01/02/2007 |
| 7125033 | Towing 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 |
| 7121574 | Pin box assembly having interchangeable hitch couplers A pin box for connecting a trailer to a tow vehicle includes a hollow receiver tube attached to a pair of support beams positioned on opposite sides of the receiver tube. A forward mounting bracket for attaching the pin box to a frame of the trailer is disposed betw... | 10/17/2006 |
| 7097193 | Gooseneck trailer hitch and method The gooseneck trailer hitch assembly includes a block tube that is fixed to a trailer frame. A top plate is fixed to the block tube. A vertical shaft is connected to the top plate. A steel spherical member is slidably mounted on the vertical shaft. Two rings are cla... | 08/29/2006 |
| 7029019 | Attachment for a host vehicle for moving a selected item The present invention is an attacher having a receiver extending rearward and a boom extending upward and rearward from a base. One or more connectors, such as a gooseneck hitch or a hook, can be at the distal end of the boom. The boom is supported by a pair of bent... | 04/18/2006 |
| 7025008 | Agricultural implement hitch An implement lift system for connection to a tractor and a farm implement, the system including a frame having a plurality of pivotal attachment devices being the sole structural connection of the implement lift system to the tractor. The pivotal attachment devices ... | 04/11/2006 |
| 6971660 | Kingpin adaptor system A kingpin adaptor system which enables a fifth wheel trailer to be connected to a towing vehicle having an upside down kingpin. The kingpin adaptor system includes an inverted fifth wheel head assembly and a kingpin adaptor. The kingpin of the fifth wheel trailer is... | 12/06/2005 |
| 6969090 | System for mounting hitches to hydroformed frames A hitch structure for connection between a pair of elongated, laterally spaced hydroformed frame members of a vehicle chassis having preformed apertures formed therein. The hitch structure comprises a hitch base adapted to receive a hitch ball member, a pair of side... | 11/29/2005 |
| 6932372 | Detachable gooseneck trailer hitch A hitch assembly for connecting a front end 21 of a low-loader trailer to a tow vehicle 10 is disclosed. The hitch assembly includes: a first mount 22 located at the front end 21 of the trailer; a second mount 25 longitudinally spa... | 08/23/2005 |
| 6808195 | Hitch ball engaging assembly and apparatus usable to interconnect fifth wheel trailer coupling to a gooseneck tractor coupling A hitch ball engaging assembly provides a socket to receive a hitch ball with at least one locking element. A rotatable locking collar rotates between first and second positions respectively to move the locking element between a locked state and an unlocked state. A... | 10/26/2004 |
| 6540246 | Ranch hitch adapter A hitch adapter for coupling a first vehicle having a king pin mounted thereon to a standard ball hitch. The adapter comprises a vertically adjustable body and a remotely operated latching mechanism. The adapter may have a cone-shaped top with a serrated ... | 04/01/2003 |
| 6485045 | Combination fifth wheel and gooseneck hitch A combination hitch for allowing a towed vehicle to be fastened to a tow vehicle. The combination hitch includes a base for being attached to the bed of the tow vehicle, the base including a ball hitch member located substantially over the centerline of t... | 11/26/2002 |
| 6474673 | Trailer hitch conversion apparatus An adapter for attaching a gooseneck or fifth wheel trailer hitch to a standard, V-shaped, trailer hitch. The hitch converting device contains a fifth wheel frame that attaches about the standard hitch and ball of a trailer device. The adapter provides a ... | 11/05/2002 |
| 6386569 | Fifth-wheel hitch coupling adapter An adapter includes connector elements for releasably coupling to a quick-connect coupling of a loader or other off-road vehicle, and a fifth-wheel for releasably coupling to a fifth-wheel king pin equipped trailer. The adapter is adapted for connecting t... | 05/14/2002 |
| 6203046 | Adaptor structure for towing a trailer having a pintle eye behind a truck having a fifth wheel mount Adaptor structure is provided for towing a pintle hitch trailer behind a truck having a fifth wheel ball mount. The adaptor structure includes a mounting plate constructed and arranged to be mounted to a surface of a tongue of a trailer to be towed. The m... | 03/20/2001 |
| 6148928 | System for mounting a three point hitch to a pick up truck The three point hitch mounting system allows a pick up truck to be fitted with a three point hitch so that the pick up truck can be used to transport and operate common agricultural and industrial implements such as mowers, plows, and tillers. In enhanced... | 11/21/2000 |
| 6109640 | Wheeled gooseneck adapter for standard hitch trailer An adapter for converting a tag-along or standard trailer to a gooseneck trailer. The adapter has a main elevated horizontal frame with three principal structures depending therefrom comprising: (1) a forward gooseneck of adjustable vertical length for co... | 08/29/2000 |
| 6024372 | Fifth wheel extension adapter An improved fifth-wheel extension adapter is described whose design provides the adaptability necessary for mating of the extension adapter with all known trailer king pin designs, which further provides improved contact with the trailer king pin and whic... | 02/15/2000 |
| 5971418 | Gooseneck hitch assembly and method of installation A gooseneck hitch assembly includes a hitch ball assembly having a hitch ball and a housing and a mounting assembly for securing the hitch ball assembly to the frame of a vehicle. The hitch ball is pivotally connected to the housing and includes a conveni... | 10/26/1999 |
| 5893575 | Hitch assembly A hitch assembly is provided with a hitch mount and a safety chain connector, both of which adjust to provide a hitch assembly which conforms substantially to the contour of the towing vehicle body when the hitch assembly is not in use. The hitch mount is... | 04/13/1999 |
| 5797614 | Convertible folding gooseneck trailer hitch A convertible folding gooseneck trailer hitch apparatus for towing a conventional A-frame trailer behind a vehicle, the apparatus including a gooseneck assembly having a forward vertical member and an aft vertical member connected by a horizontal member, ... | 08/25/1998 |
| 5755452 | Folding hitch safety latch A folding ball hitch for use with fifth wheel trailers is movable between an operative position (protruding above a truck bed) and an inoperative position (stowed below the surface of the truck bed). A locking mechanism prevents the ball from inadvertent ... | 05/26/1998 |
| 5738363 | Hitch assembly A hitch assembly is provided with a hitch mount and a safety chain connector, both of which adjust to provide a hitch assembly which conforms substantially to the contour of the towing vehicle body when the hitch assembly is not in use. The hitch mount is... | 04/14/1998 |
| 5575491 | Carrier hitch A novel carrier hitch is provided for attaching a heavy trailer or the like to a pick-up truck or the like. The hitch can be quickly and easily attached to and detached from the truck without any residual damage to the truck. The hitch includes first and ... | 11/19/1996 |
| 5571270 | Hitch assembly with retractable trailer coupling A hitch assembly is proved with a retractable hitch mount and a retractable safety chain connector, both of which retract to provide a hitch assembly which conforms substantially to the contour of the towing vehicle body when the hitch assembly is not in ... | 11/05/1996 |
| 5566964 | Convertible towing device A convertible towing device for use with a towing vehicle equipped with a trailer connector and a trailer having a tongue with a conventional trailer hitch includes a base section connectable to the trailer and a pivot section pivotable on the base sectio... | 10/22/1996 |
| 5513869 | Fifth wheel with gooseneck A fifth wheel hitch assembly (10) which is mounted on the hitch ball (32) of a gooseneck subassembly (12), is described. The subassembly is mounted in the bed (14A) of a pickup truck (14) such that the subassembly is parallel to the rear axle (16) of the ... | 05/07/1996 |
| 5435585 | Folding ball hitch with safety chain anchor A hitch adapted to be mounted in the bed of a pickup truck for towing a trailer having a coupling mechanism and safety chains. The hitch includes a ball adapted to releasably interlock with the coupling mechanism. The ball has an upright position for enga... | 07/25/1995 |
| 5415425 | Apparatus for coupling a gooseneck hitch to a trailer platform A gooseneck hitch is held in coupled relation with a trailer platform by a pivoted link which is adapted to be rocked rearwardly by hydraulic actuators to raise the forward end of the platform to a transport position and rocked forwardly to lower the forw... | 05/16/1995 |
| 5324061 | Gooseneck hitch apparatus A gooseneck hitch structure is arranged in accommodating a trailer with a conventional bumper hitch to a gooseneck type mount in a "fifth wheel" arrangement relative to an associated tow vehicle.... | 06/28/1994 |
| 5240270 | Fifth-wheel extension adapter A fifth-wheel extension adapter is provided for coupling a fifth-wheel trailer to a ball hitch assembly which is mounted in the bed of a truck. The fifth-wheel extension adapter comprises generally an extension frame, a ball coupler assembly for releasabl... | 08/31/1993 |
| 5167190 | Mobile engine-carrier convertible between road and rail use with folding swan-neck and ramps for attaching to railway bogies In a road-transportable trailer having a connecting arm (11) of a "swan neck" type, and including an oblique arm (15), followed by a branch (17), a forward extremity of the former including a lower support rack (16), and a retractable telescopic support a... | 12/01/1992 |
| 4921266 | Fifth wheel hammer ball for gooseneck trailers A fifth wheel gooseneck trailer ball coupling system for user mounting to pickup trucks comprises a multi-piece stress distributing frame and a hammer actuated ball coupling which enables the user to deploy the system in towing or non-towing modes with th... | 05/01/1990 |
| 4598925 | Trailer with improved folding gooseneck for carrying The purpose of this invention is to provide a drawn vehicle that can carry large wheeled vehicles such as combines and hopper botton freight. The trailer would normally be used in over-the-road transport and would be drawn by a large truck or semi-tractor... | 07/08/1986 |
| 4433853 | Convertible trailer hitch A convertible hitch for towing a trailer or the like includes a gooseneck arm for use as a hitch of that type. The gooseneck arm is braced by an A-frame tongue, and the hitch is converted to the bumper type by detaching the forward end of the tongue from ... | 02/28/1984 |
| 4302022 | High-low trailer A trailer bed having ground wheels at the rear and tractor engaging means at the front is formed of front and rear portions joined together by pivoted links, the rear portion being vertically movable relative to the front portion and the wheels to convert... | 11/24/1981 |
| 4261594 | Trailer with convertible hitch A trailer to be towed behind a vehicle has a convertible trailer hitch mounting on its front end in which a connecting portion of a trailer hitch is detachably secured so either a straight draw bar connected hitch or a gooseneck fifth wheel connected hitc... | 04/14/1981 |
| 3986727 | Hitch for low-bed trailers To facilitate transporting heavy equipment on forest service roads and the like by means of a low-bed trailer having a gooseneck drawbar, the customary fifth wheel pivotal connection between the towing tractor and trailer is immobilized relative to horizo... | 10/19/1976 |