Class / Patent application number | Description | Number of patent applications / Date published |
280476100 | Wheeled draft connection | 21 |
20090020983 | Towable wheeled vehicle having a steering axle - A towable wheeled vehicle releasably attachable to a towing vehicle at two horizontally spaced apart points provides a frame supporting a deck, a wheel carriage having a leaf spring suspension and a tubular steering axle with rotatable and turnable wheels at each end, and an electrically powered pneumatic system. Airbags communicating between the steering axle and the frame inflate and deflate to axially rotate the steering axle in axle sleeves carried by the leaf spring suspension reversing the caster and camber of the wheels responsive to activation of the towing vehicle's back up lights. | 01-22-2009 |
20090261559 | DUAL TRAILER WITH LIFTING WHEELS FOR TRANSPORT WHEN EMPTY - A dual trailer has a first trailer with a king pin for a tractor and a rear fifth wheel for the king pin of a second trailer. The rear end of the first trailer and the front end of the second trailer is lifted into an empty transport position so that the first and second trailers are supported solely on the tractor and the rearmost axle of the second trailer. The remaining axles are held raised from the ground by the lifting of the trailers and by an individual lifting hook supporting the axle raised relative to the frame. In the empty transport position, the first and second trailers are maintained as a single integral trailer in a directly aligned position. Each axle includes an air bag so that the hook is engaged when the axle is raised relative to the frame by releasing the air from the bag. | 10-22-2009 |
20090295122 | INTEGRATED SUPPORT STRUCTURE FOR EITHER A FIFTH WHEEL HITCH OR A GOOSENECK TRAILER HITCH - An integrated support structure apparatus is provided for attaching either a fifth wheel trailer hitch or a gooseneck trailer hitch to a truck bed. The integrated support structure comprises an H-shaped body that is attached to at least one truck frame rail below the truck bed. A gooseneck ball receiver is attached to a central portion of the body and aligned with a gooseneck opening in the truck bed. A plurality of receptacles are attached to the body in an array and are aligned with a corresponding plurality of pedestal access openings in the truck bed. | 12-03-2009 |
20100001489 | 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 wheels off the ground for towing. In a forward tow direction, a conventional tow truck with a hydraulically operated boom for lifting the front of the semi tractor off the ground. In a reverse direction, virtually any truck with a pintle or other means for connection to a tow bar can be used for towing the disabled vehicle. In accordance with an important aspect of the invention, the tractor dolly assembly is provided with self steering wheels which allow the disabled vehicle to be towed in a reverse tow direction. The tractor dolly assembly is configured so that in a reverse tow direction, the semi tractor can be towed by any truck with a pintle hook, which are fairly common on semi tractors and other over the road vehicles or other means for connection to a tow bar. The pintle hook would be connected to a draw or tow bar, which, in turn, would be connected to the tractor dolly assembly on accordance with the present invention. In accordance with another important feature of the invention, since the tractor dolly assembly is configured to be secured to the frame of a disabled vehicle, use of the tractor dolly assembly is independent of the configuration of the tractor or other vehicle or whether the disabled vehicle has a fifth wheel assembly. | 01-07-2010 |
20100117331 | 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 distal end of the main body, (d) an operator's handle coupled to the main body at the proximal end, (e) at least one grip coupled to the operator's handle, (f) a V-shaped support coupled to a lower side of the main body, (g) a hitch receiving aperture coupled to the distal end of the main body, (h) a support beam operably coupled to the main body at one end and the hitch receiving aperture at an opposite end, and (i) an axle coupled to the main body at the distal end and operably coupled to the at least one wheel. | 05-13-2010 |
20100171285 | LOAD STABILIZER FOR AN AUTOMOBILE - A load stabilizer for an automobile is provided. The load stabilizer includes a hitch assembly having an elongate cross member that extends between opposing frame rails of the automobile and that is pivotable about an axis of rotation defined along a length of the cross member in response to a load applied upon the hitch assembly. A first torsion bar is carried on a first end by the cross member and on a second end by the automobile frame for retarding load variations on the hitch assembly. | 07-08-2010 |
20100230930 | DRAWN AGRICULTURAL MACHINE - A drawn agricultural machine comprising a carrier frame for carrying processing members, the carrier frame supportable on the ground, at least during transport, by means of a wheel set comprising at least a wheel, a coupling frame for coupling the agricultural machine | 09-16-2010 |
20110074132 | POWERED CONVERTER DOLLY AND SECURING DEVICE - A powered converter dolly for movement and attachment of trailers is provided. The dolly comprises a conventional converter dolly having a retractable landing gear assembly mounting wheels attached to the drawbar. The dolly has a power supply and operates as a towing device. The landing gear assembly provides steering for the dolly as well as motive power from a motor connected to the landing gear wheels. Alternatively, the wheels of the dolly may be powered for providing motion to the dolly. The dolly further comprises several attachment devices for securing the dolly to an intermodal railcar, including alternative hydraulic, mechanical, and electrically-powered tie down devices. A trolley movable along a railcar is provided for securing the dolly or trailer to the railcar and includes a hitch component for selectively interconnecting to a hitch component on the dolly or trailer. | 03-31-2011 |
20110175323 | TRAILER DOCKING REPOSITIONABLE SUPPORT - A trailer stabilizing device for stabilizing a parked freight trailer comprising a frame having mounted thereto at least a right side wheel and a left side wheel, the frame also including a hitch, a fifth wheel, and at least one of a repositionable wheel chock and a repositionable hook, the trailer stabilizing device further including a repositioning device in order to reposition at least one of the repositionable wheel chock and the repositionable hook. The present disclosure also includes a method of stabilizing a parked trailer at a loading dock, the method comprising: (a) positioning a wheeled trailer stabilizer underneath a parked freight trailer at a loading dock while landing gear of the parked freight trailer are deployed and a kingpin of the parked trailer is accessible; (b) securing the kingpin of the parked freight trailer to a fifth wheel of the wheeled trailer stabilizer; and, (c) deploying a repositionable hook operatively coupled to the frame of the wheeled trailer stabilizer so the repositionable hook couples to a cleat mounted to the ground, where deployment of the hook is operative to exert a pulling force on the kingpin. | 07-21-2011 |
20110187080 | A CASTOR WHEEL - A castor wheel for a vehicle or an attachment for a vehicle, the castor wheel comprising; a wheel having an axle about which the wheel can rotate, an offset pivot mounting for mounting the castor wheel to the vehicle or vehicle attachment, the pivot mounting being connected to the wheel axle and defining a pivot axis perpendicular to and offset from the wheel axle, the wheel capable of pivoting about the pivot axis, and wherein the castor wheel also comprises a restrainer for restraining the pivoting of the wheel is disclosed. | 08-04-2011 |
20120080866 | AUTOMATICALLY ADJUSTING TRAILER CONVERTER DOLLY - A trailer converter dolly includes a frame bearing a fifth wheel supported by a suspension mechanism, an axle assembly, and a wheel assembly. A drawbar housing secured to the front of the frame moveably receives a drawbar which is configured to move toward and away from a leading truck or trailer, thus adjusting the distance between the towed trailer attached to the trailer converter dolly and a leading truck or trailer. A speed sensor determines the speed of the trailer converter dolly and provides one or more signals relating to the speed of the trailer converter dolly. An automatic adjusting mechanism associated with the moveable drawbar moves the drawbar in response to the one or more speed signals provided by the speed sensor. | 04-05-2012 |
20120091689 | Baby Trailer Safety Structure That Prohibits Baby From Standing Up - A baby trailer safety structure includes a safety block affixed to one sidebar of the bottom frame unit of the baby trailer opposite to the other sidebar that is mounted with a trailer bar. The safety block has a sloping peripheral wall with an arc face to prohibit a young child carrying in the baby trail from standing up on the associating sidebar to collapse the baby trailer, enhancing the safety level of the baby trailer. | 04-19-2012 |
20120261903 | Jockey wheel mounting - A mounting ( | 10-18-2012 |
20120319380 | TRAILER - A trailer system or trailer includes a trailer body having one or more wheel axle assemblies underlying the trailer body at a rear portion. In the trailer system embodiment, included is a detachable trailer neck that has at least one swivel wheel assembly located at a rear portion of the neck. The swivel wheel assemblies can be lifted or lowered using hydraulic or air cylinders. The neck or tongue has a transversely oriented pivot joint with an adjustable tongue weight assembly using springs and an air or hydraulically operated cylinder to adjust tongue weight. | 12-20-2012 |
20130001922 | TRAILER STABILIZER - A trailer stabilizer and signaling system comprising: (a) a repositionable freight trailer stabilizer comprising a frame having mounted thereto a wheel, the repositionable freight trailer stabilizer including a repositionable jack; and, (b) a stabilizer signaler operatively coupled to the trailer stabilizer, the stabilizer signaler including a deployable signal configured to confirm the trailer stabilizer is secured under a parked freight trailer. | 01-03-2013 |
20140015223 | POWERED CONVERTER DOLLY AND SECURING DEVICE - A powered converter trolley for movement and attachment of trailers is provided. The trolley comprises a conventional converter trolley having a drawbar. The trolley has a power supply and operates as a towing device. The trolley connects to a freight trailer and can be raised or lowered from a stored position to a ground-engaging, working position. Alternatively, the wheels of the trolley may be powered for providing motion to the trolley. The trolley further comprises several attachment devices for securing the trolley to an intermodal railcar, including alternative hydraulic, mechanical, and electrically-powered tie down devices. A trolley movable along a railcar is provided for securing the trolley or trailer to the railcar and includes a hitch component for selectively interconnecting to a hitch component on the trolley or trailer. | 01-16-2014 |
20140159342 | TRAILER DOCKING REPOSITIONABLE SUPPORT - A trailer stabilizing device for stabilizing a parked freight trailer comprising a frame having mounted thereto at least a right side wheel and a left side wheel, the frame also including a hitch, a fifth wheel, and at least one of a repositionable wheel chock and a repositionable hook, the trailer stabilizing device further including a repositioning device in order to reposition at least one of the repositionable wheel chock and the repositionable hook. The present disclosure also includes a method of stabilizing a parked trailer at a loading dock, the method comprising: (a) positioning a wheeled trailer stabilizer underneath a parked freight trailer at a loading dock while landing gear of the parked freight trailer are deployed and a kingpin of the parked trailer is accessible; (b) securing the kingpin of the parked freight trailer to a fifth wheel of the wheeled trailer stabilizer; and, (c) deploying a repositionable hook operatively coupled to the frame of the wheeled trailer stabilizer so the repositionable hook couples to a cleat mounted to the ground, where deployment of the hook is operative to exert a pulling force on the kingpin. | 06-12-2014 |
20140291962 | Automated axle steering control system - The invention disclosed herein is a new steering control mechanism attached to a truck frame extension which permits trucks towing goose neck trailers to have more maneuverability while towing the trailer. Specifically, a steering control plate rests between two metal stops located on a tie rod connecting the two wheels of the truck frame extension. When the operator of the truck signals a turn the steering control plate is lifted off of the tie rod to a level above the metal stops which permits the tie rod to move in connection with the movement of the towing truck. After the truck completes the turn the steering control plate returns to rest on the tie rod between the two metal blocks locking the tie rod in place. This arrangement permits the trailer to faithfully follow the truck in straight line traffic. The invention disclosed herein permits the goose neck trailer to make sharper turns without putting stress on the tires and frame of the truck or trailer. | 10-02-2014 |
20150307142 | DRAG REDUCTION FAIRING FOR A TRAILER CONVERTER DOLLY - A converter dolly is provided for use with a tractor-trailer wherein the converter dolly additionally comprises dolly fairings which are located in front of the wheels of the converter dolly. The dolly fairings are preferably made of fibreglass, and improve the aerodynamic efficiency of the converter dolly, and thus reduce fuel consumption. | 10-29-2015 |
20150307143 | SHIPPING CONTAINER TRANSPORT SYSTEM - A container transport system includes a gooseneck assembly for towing by a medium duty truck and a dolly for supporting the weight of an intermodal freight container. The gooseneck assembly includes a pair of platforms each configured to support a corner casting of the transported intermodal freight container and having a post matingly received through a bottom orifice of the supported corner casting. A hoist assembly is provided to lift an end of the intermodal freight container for placing the container on the dolly or removing the container from the dolly. A pair of barrel slide bolt assemblies is provided for securing the intermodal freight container in place atop the platforms. In order to facilitate placement of the dolly beneath the freight container, the dolly also includes a gin pole assembly, which is stowable in a recess so as to not interfere with placement of the container. | 10-29-2015 |
20160059913 | Collapsible Towing Dolly - A collapsible towing dolly with a rectangular frame for assembly on a driving surface beneath a towed vehicle. Four sides of the rectangular frame cradle a pair of opposing tires on the towed vehicle. The rectangular frame can be adjusted in size to accommodate different towed vehicles. The corners of the rectangular frame flex, so that the frame displaces in parallelogram fashion when pulled around a curve, allowing the towed vehicle to track behind the tow vehicle. The rectangular frame is raised off the driving surface by means of a liftable attachment between the rectangular frame and each of a pair of dolly wheel assemblies. Alternatively, jacks attached to the rectangular frame lift the rectangular frame. The rectangular frame attaches to a standard hitch on the tow vehicle via a tongue assembly removably attached to the rectangular frame. | 03-03-2016 |