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| Number | Title | Issue Date |
| 8042826 | Trailer hitch carriage assembly A trailer hitch carriage assembly for reducing downward force on a tow vehicle and facilitating hitching of a trailer includes an axle having pivotable distal end portions and a tow bar pivotally coupled to a central portion of the axle. The tow bar has a proximal e... | 10/25/2011 |
| 8002303 | Semi tractor dolly assembly A tractor dolly assembly is disclosed for use with a semi tractor or other vehicle to be towed in either a forward or reverse direction. The tractor dolly assembly is configured to be coupled to the rear frame of a semi tractor or other vehicle and lift the rear whe... | 08/23/2011 |
| 7980582 | Front tow extended saddle A front tow extended saddle is disclosed. The saddle allows a first towing truck to mount a second truck, facing forward, behind the first truck, in order to tow the second truck to a distant location. The saddle allows the towed truck to face forward during transpo... | 07/19/2011 |
| 7946606 | Converter dolly backup device A backup device for limiting the rotation of converter dollies about a trailer hitch is presented. A dolly mounted, laterally extending moveable bar is selectively pressed against the vertical members of the trailer's underride guard in order to prevent rotation of ... | 05/24/2011 |
| 7934743 | Convertor dolly with self steering An apparatus for facilitating trailer towing is provided comprising a steer axle fixed to a rigid frame by means of a suspension, a selectably adjustable hitch, for receiving a trailer tongue, mounted on the frame and positioned above and forward of the steer axle, ... | 05/03/2011 |
| 7845670 | Trailer dolly In some embodiments, a trailer dolly may include one or more of the following features: (a) a main body having a proximal and distal end, (b) an adjustable hitch operably coupled to the distal end of the main body, (c) at least one wheel operably coupled to the dist... | 12/07/2010 |
| 7823902 | Trailer towing system An accessory towing apparatus that connects a towing vehicle to a gooseneck-type trailer. The accessory towing apparatus includes a chassis framework assembly mounted on an axle having two ground engaging wheels. The chassis assembly includes three linkage arms, whi... | 11/02/2010 |
| 7740265 | Semi tractor dolly assembly A tractor dolly assembly is disclosed for use with a semi tractor or other vehicle to be towed in either a forward or reverse direction. The tractor dolly assembly is configured to be coupled to the rear frame of a semi tractor or other vehicle and lift the rear whe... | 06/22/2010 |
| 7338063 | Trailer damping apparatus and trailer utilizing same A damping apparatus for a gooseneck trailer and a gooseneck trailer are provided. The damping apparatus includes an inner shaft and an outer shaft reciprocable about the inner shaft. A first plate is coupled with the outer shaft. A second plate may be coupled with t... | 03/04/2008 |
| 7311335 | Trailer and fuel tank assembly A trailer and fuel tank assembly are disclosed. The fuel tank preferably forms the body of the trailer. The fuel tank may include a recess in the top surface for receiving the motor and/or pump, which may lower the pump closer to the ground to increase the suction p... | 12/25/2007 |
| 7290782 | Trailer dolly A trailer dolly comprising a horizontal base plate, a first pair of wheels which are fixed from rotation about a vertical axis, a second pair of wheels being rotatable around a vertical axis, and a trailer ball. The trailer dolly facilitates the loading of a trailer... | 11/06/2007 |
| 7273114 | Elimination of jack-knifing of the tractor-trailers A tractor-trailer coupling mechanism for a powered tow vehicle and unpowered trailer vehicle which eliminates jack-knifing. The coupling includes at least one extension or more on the trailer vehicle which is constructed to slide into a receptor channel or recesses ... | 09/25/2007 |
| 7261313 | Towing mechanism A towing mechanism for a vehicle is disclosed having an axle and wheel assembly, the towing mechanism including at least one of a linkage and a stabilizer to militate against a rocking motion of the towing mechanism and maximize stability. ... | 08/28/2007 |
| 7252169 | Windrower rear axle suspension system A suspension system for the rear axle of a self-propelled agricultural windrower. The axle is split into two components, each having an air spring to absorb shocks. The two air springs are interconnected by a tube to equalize the internal pressure. A pair of pins ca... | 08/07/2007 |
| 7237789 | Detachable axle and hitch assembly A hitch and axle assembly including a support structure detachably securable to a vehicle and an axle assembly. A hitch is mountable on the support structure. The axle assembly includes a primary axle member defining a primary axis. Torsion beam assemblies are coupl... | 07/03/2007 |
| 7234665 | Aircraft landing gear snow ski tow bar A snow ski tow bar adapts a prior art aircraft tow bar for attachment to a landing gear of an aircraft to which a snow ski has been attached. The snow ski tow bar modifies an existing tow bar with a second set of connectors that adapt the snow ski tow bar for connec... | 06/26/2007 |
| 7112029 | Carrier apparatus and method A carrier apparatus and method includes a pair of oppositely positioned carriers. At least one pair of steerable wheels is connected to at least one of the oppositely positioned carriers. A movable neck is connected to each of the oppositely positioned carriers and ... | 09/26/2006 |
| 7111862 | Unitized fifth wheel and rear axle suspension A modular suspension system for short distance repositioning tractors, often referenced as terminal tractors, isolating the shock and impact of a retractable fifth wheel and rear axle from the frame of the terminal tractor by the arrangement of a rear axle and fifth... | 09/26/2006 |
| 7100489 | System and method for hitch with backup anti-jack knife and anti-dive For use in landmine clearing, a hitch system providing backup with anti-jack knife and anti-dive, the system includes a hitch assembly and a roller assembly. The hitch assembly has a hinge axis housing containing a hinge shaft and a connector shaft housing containin... | 09/05/2006 |
| 7077220 | Tractor with rear castor wheels A hydrostatic agricultural tractor has front ground wheels mounted on the frame at fixed angles parallel to each other and parallel to a center line of the frame and rear ground wheels mounted on a respective castor, with each of the front ground wheels being driven... | 07/18/2006 |
| 7043932 | Temperature controlled air cargo container transport dolly A temperature-controlled air cargo container transport dolly for use in transporting perishable cargo from an air cargo storage area to an aircraft. In a preferred embodiment, the air cargo container transport dolly comprises a conventional air cargo trailer having ... | 05/16/2006 |
| 7017934 | Tractor dolly A portable dolly for use in towing a tractor including at least one wheel for moving the dolly, a king pin configured for placement in a mating engagement with a fifth wheel on the tractor, and a plurality of chains for connecting the dolly to the tractor, wherein t... | 03/28/2006 |
| 6973892 | Quick release coupler for an inflatable towable vehicle The present invention provides a quick disconnect coupler for an inflatable towable vehicle including a body member attached to the towing connection of the towable vehicle and a selectively movable arm having a first end pivotally attached to the body member. The a... | 12/13/2005 |
| 6938910 | Towing carriage The invention relates to a tow carriage, especially for towing motorcars with the aid of a motor-cycle (2) or some other small vehicle. The carriage (1) comprises at least two wheels (3, 4 and 5, 6) which supported are steerable by means ... | 09/06/2005 |
| 6923453 | Suspension leveling system In the operation of work machines of the type required to carry heavy loads over uneven ground conditions, it is oftentimes desirable to provide the work machine with a way to automatically maintain the chassis in a substantially horizontal condition. The present in... | 08/02/2005 |
| 6820887 | Dolly for towing trailers Disclosed embodiments of a dolly for towing trailers generally include a main framework, a tongue assembly, stabilizing shocks, an axle, an axle platform, a steering assembly, and/or tire-wheel assemblies. The use of these dolly embodiments reduce the probability of... | 11/23/2004 |
| 6733028 | Towing mechanism A towing mechanism (10) for a vehicle having an independent axle and wheel assembly and a linkage for adjusting the height of the towing mechanism (10) to accommodate a variety of trailers, whereby the towing mechanism (10) militates against the... | 05/11/2004 |
| 6685211 | Trailer dolly A load-bearing trailer dolly which connects a tongue-type boat, utility or other trailer to a towing vehicle and bears weight from the trailer during towing. In a preferred embodiment, the trailer dolly is characterized by an axle mounted on a pair of whe... | 02/03/2004 |
| 6663131 | Dolly for towing disabled trailers A dolly is disclosed and includes a pair of wheels; a frame mounted to the wheels and movable to an engagement position beneath the forward end of a trailer; a fifth wheel assembly; a mounting assembly and a clamp system. The fifth wheel assembly includes... | 12/16/2003 |
| 6616373 | Boat launching device and method A boat launching device. The boat launching device is portable and attaches to the front of a vehicle so that the driver has a front view while launching the boat into the water. The boat launching device includes a first link member that is connected to ... | 09/09/2003 |
| 6565108 | Locking mechanism for trailer-pulling assemblies A locking mechanism for an articulating trailer of the type which couples to a king-pin plate provides an arrangement for locking the trailer in a non-articulated position while allowing the king-pin plate to continue pivoting. One or more apertures are f... | 05/20/2003 |
| 6454289 | Trailer hitch cart for a motorcycle A trailer hitch cart for a motorcycle comprises a two-wheel cart having a U-shaped frame, with a lateral frame member, a first longitudinal frame member extending forward from one end of the lateral frame member, and a second longitudinal frame member ext... | 09/24/2002 |
| 6450523 | Steering method for a trailing section of an articulated vehicle This invention relates generally to systems used to steer trailing sections of articulated vehicles and trailers. The preferred embodiment of this invention is a steerable dolly that can be manually and/or automatically switched among multiple modes. The ... | 09/17/2002 |
| 6431564 | Add-on self tracking axle for a vehicle The present invention is a self steering "add on" axle system for use with a vehicle such a dump truck in order to increase the legal weight capacity of the vehicle and provide effective steering in both the forward and reverse directions. The system comp... | 08/13/2002 |
| 6419247 | Auxiliary axle assembly An auxiliary axle assembly in which a pair of pivoted swing arms, each supporting a wheel are mounted to a frame member to extend downwardly and outwardly therefrom. Controllably pressurized air springs are mounted to a respective swing arm to set a desir... | 07/16/2002 |
| 6290248 | Universal dolly attachment device An improved trailer dolly having a fifth wheel and also carrying a ball-type trailer hitch to give the driver the option of towing either type of trailer and having steering means built into the dolly to provide sure and positive steering and control of t... | 09/18/2001 |
| 6273447 | Trailer support with articulating, free castering wheels The present invention is a trailer extension support dolly with a frame supported by a pair of articulating, free castering support wheels. The trailer extension support dolly attaches between a trailer and a tow vehicle to at least partially support the ... | 08/14/2001 |
| 6224083 | Multi-function load bearing apparatus A multi-functional, compound apparatus that functionally provides at least one additional axle and wheels, that can be used with or without a trailer being towed to enable a vehicle to carry extra weight, extra long loads, and/or to tow a trailer heavier ... | 05/01/2001 |
| 6182997 | Trailer hitch assembly Towing apparatus for connecting a trailer with a towing vehicle. The towing apparatus is adapted to bear part of the weight of the trailer, thus lessening the load on the towing vehicle. This is accomplished by providing a wheel assembly on the towing app... | 02/06/2001 |
| 6135484 | Tow bar construction for transport vehicles and transport vehicle combinations, and a transport vehicle combination The invention relates to transport vehicles and combinations thereof and their tow bar constructions comprising a tow bar journalled to the front of the chassis rotatably relative to a vertical and a horizontal axle, and structure for turning the axle. Th... | 10/24/2000 |
