Class / Patent application number | Description | Number of patent applications / Date published |
280515000 | Draft pin | 27 |
20090096189 | HITCH - A hitch system includes a handle portion including a handle loop, a pin portion extending from the handle portion, a pair of opposite retainers and a trigger. The retainers are movable between a retracted position relative to the pin portion and an extended position relative to the pin portion. The trigger is coupled to the retainers to actuate the retainers between the retracted position and the extended position. | 04-16-2009 |
20090121452 | Extension Coupling With Angle Adjusting Retainer For Use With Trailers - An extension coupling for interconnecting a trailer to a tow hitch with an angular opening including a mount securable to the trailer and an elongated arm having a proximal end portion rotatably attached to the mount and an opposite distal end portion. A connector pin is disposed on the distal end portion and adapted to releasably mate with the tow hitch. A retainer is mounted to the elongated arm and includes a head assembly operative to engage the angular opening of the tow hitch thereby to resist rotation of the arm relative to the tow hitch. The head assembly includes first and second faces respectively oriented at an angle with respect to one another. The faces are movable with respect to one another so as to change the angle between a larger angle and a smaller angle to correspond to the angular opening in the tow hitch. | 05-14-2009 |
20090230657 | Hitching Mechanism - An apparatus and a method providing for improved hitching of a towed implement to a tractor. The apparatus and method are of most use in small connections such as to a lawn tractor and provide for a handgrip to improve ease of moving the implement by hand and a hitching mechanism which serves to allow for the same hand to raise the hitch pin, engage the hitch, and then lower the hitch pin. | 09-17-2009 |
20090278334 | Device for installing and removing a clip method for inserting and removing a cotter pin | 11-12-2009 |
20100007117 | Adaptable Trailer Drawbar Assembly - A drawbar assembly includes a shank that can slidingly engage a first hitch receiver having an interior opening with a first size, which may be a class I receiver with a one and one-quarter inch square opening and provisions for a one-half inch hitch pin. First and second adapter parts, each having two sides forming a right angle, are removably coupled to the shank on opposite sides. The drawbar assembly can slidingly engage a second hitch receiver having an interior opening with a second size, which may be a class III receiver with a two inch square opening and provisions for a five-eighths inch hitch pin. A threaded hitch pin may clamp the drawbar assembly to the receiver. | 01-14-2010 |
20100264627 | Receptacle for an Adapter Having a Trailer Ball - A receptacle device that is attachable to a motor vehicle includes a receiving tube into which an insertion tube of an adapter having a trailer ball can be inserted. The insertion tube is held in the receptacle tube with the help of a splint. In order to eliminate play between the insertion tube and the splint, the insertion tube is pressed against the splint by a pressure piece. A first segment of the pressure piece fits the inner diameter of the receiving tube, so that the pressure piece can be held by said receiving tube, while a second segment engages precisely in the insertion tube in order to be held thereby. | 10-21-2010 |
20110049840 | Drawbar Bore Adapter - In an example embodiment a drawbar pin bore adapter includes a bushing sized to fit within a drawbar pin bore of a first size and a retainer to secure the bushing to the drawbar. The bushing may include a primary portion having an outer diameter configured for insertion into the drawbar pin bore, an inner diameter configured to receive a drawbar pin of a second diameter; and an extension portion configured to protrude from the drawbar bore and engage the retainer to secure at least a portion of the bushing within the drawbar pin bore. | 03-03-2011 |
20110074133 | PIVOTING HITCH ASSEMBLY - A clevis pin combination comprises a clevis made of aluminum alloy; and a pin made of steel. This combination of parts and materials results in lighter weight and improved performance of maximum load carrying capacity over similar combinations of all aluminum or all steel. The clevis further comprises a first clevis leg having a first clevis aperture in a first clevis end and a second clevis leg having a second clevis aperture in a second clevis end. The second clevis end is spaced apart from the first clevis end forming an open end. A curved portion connecting the first clevis leg and the second clevis leg forms a closed end. The first clevis aperture and the second clevis aperture are axially aligned and the steel pin is sized to fit through the first clevis aperture and second clevis aperture allowing pivoting movement between the clevis and the pin. The clevis may be substantially U-shaped. At least the curved portion of the clevis may by significantly wider than it is thick, such that it is flat in cross-section. Alternatively, the clevis may by significantly wider than it is thick, such that it is flat in cross-section. The curved portion or the entire clevis may be formed of a single piece of solid aluminum bar stock bent into a U-shape, forming a weldless and seamless U-shaped clevis. | 03-31-2011 |
20110121541 | CARRIER VEHICLE AND COUPLING MECHANISM - The carrier vehicle includes a coaxial two-wheel vehicle including two wheels arranged on the same axial centerline, a cart, and a coupling mechanism to couple the coaxial two-wheel vehicle to the cart. The coupling mechanism | 05-26-2011 |
20110156372 | DUAL-ATTACHMENT SYSTEM FOR A SWAY CONTROL HITCH - A trailer hitch system for equalizing trailer loads and reducing trailer sway. The trailer hitch system may include spring bars that may be attached to a hitch head using a trunnion style connection. The spring bars may be attached to the trailer using rigid brackets that reduce swinging of the spring bars. The rigid brackets having a plurality of contact points may include an upward extending portion for attaching to the trailer tongue, and a lateral extending portion for receiving the spring bars thereupon. The rigid brackets may include a spacing member and an attachment member. | 06-30-2011 |
20120074669 | PIVOTING JOINT FOR AN ARTICULATED VEHICLE - The subject matter of the invention is a pivoting joint for an articulated vehicle comprising two joint segments connected by at least one joint body, wherein the joint body comprises at least one saddle having at least one concave bowed surface, which is received by the first joint segment, wherein the joint body furthermore comprises at least one calotte disposed on the other second joint segment, wherein the calotte faces the concave bowed surface of the saddle with its convex bowed surface, wherein the calotte and saddle are connected by means of a pin to each other, wherein a bearing liner with at least one layer made of elastomer is disposed between the saddle and the calotte. | 03-29-2012 |
20120228853 | HITCH PIN - A hitch pin for use in a hitch assembly is provided. The hitch pin includes a first end portion, a second end portion, and a transition portion. The size of the first end portion is different relative to the size of the second end portion. The two end portions are configured to fit different size apertures defined by a hitch assembly component. In further examples, the hitch pin can include a first end portion, a second end portion, a third end portion, and a transition portion. The first end portion is of a different size relative to both the second end portion and the third end portion. | 09-13-2012 |
20120299271 | HITCH COUPLER - A hitch coupler includes a frame that includes a back plate, a first plate connected to the back plate, a second plate connected to the back plate at a position spaced from the first plate extending between the first plate and the second plate and cooperating therewith to define an interior space, and a third plate connected to the back plate spaced from the second plate, wherein the first, second and third plates each include an aperture extending therethrough. The frame also includes a pin extending through the first, second and third apertures, such that the pin extends through the interior space and is adapted to slide within the apertures between an extended position and a retracted position, and a spring member biasing the pin towards the extended position. | 11-29-2012 |
20130076008 | LOCKING ASSEMBLY FOR TOWING HITCH - The present invention is a locking assembly and tow bar that allows for one handed locking and unlocking of the tow bar and can be easily manipulated with one person. The tow bar has a receiver joint connecting the ends of two tow bar arms, the receiver joint including upper and lower plates. The receiver joint is connected by a coupling link to a clevis hitch, which has a horizontally mounted pivot bolt mounted for rotation about a horizontal axis. The tow bar rotates at the receiver joint about the pivot pin from a horizontal, or deployed position, to a vertical, or stowed position. The clevis hitch is received by a tow bar receiver, which in turn is disposed in a hitch socket on the towing vehicle. | 03-28-2013 |
20130147158 | Implement Hitch With Ring and Clevis - A hitch apparatus has a tongue member with drawpin hole. Upper and lower clevis straps are pivotally attached to a corresponding top and bottom sides of the tongue member about vertical pivot axes, such that the clevis straps can pivot from an operating position, where the upper clevis strap is above the drawpin hole and the lower clevis strap is below the drawpin hole, to an idle position where the clevis straps extend laterally from the tongue member. When the clevis straps are in the operating position, upper and lower clevis holes in the corresponding clevis straps are vertically aligned with the drawpin hole in the tongue member, and a recess is formed between one of the upper and lower clevis straps and the tongue member. A drawpin retainer prevents upward movement of a drawpin out of engagement with the clevis and drawpin holes. | 06-13-2013 |
20130154236 | Drawbar Pin Retention Device - In an example embodiment, an automatic engaging drawbar pin retention device includes a biased locking plate configured to retain a drawbar pin within a drawbar bore. The locking plate may be movably coupled to a drawbar clevis between a pin-lock to at least partly cover the bore and prevent removal of the drawbar pin and a pin-unlock condition. | 06-20-2013 |
20130221635 | AUTOMATIC LOCK SYSTEM FOR VEHICLE HITCH ASSEMBLY - A hitch coupler includes a frame having vertically spaced apart plates extending outwardly therefrom. Each plate includes a pin receiving aperture adapted to receive a pin member therethrough. The pin member is moveable between extended and retracted positions. The pin member includes a pin housing having a vertical guide slot disposed thereon. A lock mechanism is pivotally coupled to the frame member and includes a locking flange which is adapted to engage the guide slot when the pin member is in the extended position. The lock mechanism is biased towards a lock position such that the locking flange of the lock mechanism is adapted to automatically engage the guide slot disposed on the pin housing of the pin member when the guide slot is aligned with the locking flange of the lock mechanism. In the locked position, the locking mechanism acts to retain the pin member in the extended position. | 08-29-2013 |
20130277946 | HITCH BUSHING - A hitch apparatus has a tongue member with a weight bearing surface and an opposite free surface, and defining a bushing hole extending substantially vertically. A bushing has a cylindrical portion defining a drawpin hole with an outside diameter equal to an inside diameter of the bushing hole and a flange extending outward from one end of the cylindrical portion. The flange has a tongue surface adjacent to the cylindrical portion of the bushing, and an opposite wearing surface. The cylindrical portion of the bushing extends into the bushing hole such that the tongue surface of the flange bears against the weight bearing surface of the tongue member, and the bushing has a Rockwell Scale hardness greater than a Rockwell Scale hardness of the tongue member. Different bushings may define a variety of drawpin hole diameters to suit different drawpins. | 10-24-2013 |
20130313806 | Ground Engaging Machine Having Articulation Hitch, And Method - A ground engaging machine includes a first and a second frame unit, and an articulation hitch coupling together the first and second frame units. The articulation hitch includes a pin, a first and a second bearing positioned about the pin, and abutting a first and a second axial side of an annular protrusion of a hitch plate in one of the first and second frame units. A clamping mechanism of the articulation hitch clamps the first and second bearings between first and second clamping components, such that they are preloaded against the annular protrusion. | 11-28-2013 |
20130334794 | FOOT ACTUATED HITCH PIN ASSEMBLY - A trailer hitch assembly includes a support bracket having an upper support bushing and a lower support bushing separated from the upper support bushing. A hitch pin slideably engages the upper and lower support bushings. The hitch pin includes a ring shaped actuating collar disposed between the upper and lower support bushings. A release lever pivotally connects to a mounting pin and slideably engages the actuating collar between the upper and lower support bushings. An actuating arm is fixedly attached to the release lever for concurrent rotation therewith about the mounting pin. The release lever may be selectively pivoted around the mounting pin by apply an actuating force to the actuating arm to move the hitch pin between a latched position and an unlatched position. A latch plate attached to the support bracket includes an aperture for receiving the hitch pin when positioned in the latched position. | 12-19-2013 |
20140125035 | PIVOTING HITCH ASSEMBLY - A clevis pin combination comprises a clevis made of aluminum alloy; and a pin made of steel. This combination of parts and materials results in lighter weight and improved performance of maximum load carrying capacity over similar combinations of all aluminum or all steel. The clevis further comprises a first clevis leg having a first clevis aperture in a first clevis end and a second clevis leg having a second clevis aperture in a second clevis end. The second clevis end is spaced apart from the first clevis end forming an open end. A curved portion connecting the first clevis leg and the second clevis leg forms a closed end. The first clevis aperture and the second clevis aperture are axially aligned and the steel pin is sized to fit through the first clevis aperture and second clevis aperture allowing pivoting movement between the clevis and the pin. The clevis may be substantially U-shaped. At least the curved portion of the clevis may by significantly wider than it is thick, such that it is flat in cross-section. Alternatively, the clevis may by significantly wider than it is thick, such that it is flat in cross-section. The curved portion or the entire clevis may be formed of a single piece of solid aluminum bar stock bent into a U-shape, forming a weldless and seamless U-shaped clevis. | 05-08-2014 |
20140145416 | Towing Assembly - The present invention relates to a towing bar assembly that may convert from an articulated assembly extracting a vehicle in an inaccessible location to a rigid assembly for safely towing a vehicle on a road. | 05-29-2014 |
20150054258 | Automatic Lock System for Vehicle Hitch Assembly - A hitch coupler, comprising a frame is disclosed, wherein the frame includes a plurality of vertically spaced apart plates having apertures disposed there through. A vertically extending clevis pin is adapted to slide within the apertures of the vertically spaced apart plates between an extended position and a retracted position. The pin further includes a pin housing having a guide slot, wherein the guide slot has an offset portion used to lock the pin in either the extended position or the retracted position. Further, the pin houses an internal spring having a torsional bias that urges the pin to a locked position in either the extended or retracted position. | 02-26-2015 |
20150054259 | MULTI-CONFIGURATION, MULTI-PIN DRAWBAR RETENTION ASSEMBLY - A drawbar pin-retention assembly for use with a drawbar mechanism has a swinging drawbar, a support housing, and a device configured to prevent the swinging of the drawbar, the device having at least one drawbar pin. The pin-retention assembly includes a hanger bracket having a body portion and a pair of overhanging arms and a retaining bracket mounted on the hanger bracket with hinge tabs and pivotable about a pivot axis to move between a pin-retaining position and a pin-removal position. When the retaining bracket is pivoted to its pin-retaining position, a strap is positioned over the drawbar pin. Outward movement of the pin causes it to contact a forward portion of the strap forward of the pivot axis causing the retaining bracket to contact the hanger bracket thereby preventing pivoting of the retaining bracket in a first direction. The retaining bracket pivots by gravity to the pin-retention position. | 02-26-2015 |
20150061261 | DRAWBAR HITCH MOUNT ASSEMBLIES - Drawbar hitch mount assemblies for towing an implement such as a mower conditioner are disclosed. The assemblies include a hitch receiver capable of pivoting relative to the implement and/or towing vehicle. | 03-05-2015 |
20150306927 | Scooter and Cart Connection Device - A scooter and cart connection device allows connection of a shopping cart to a personal scooter to facilitate shopping. The device includes a conduit having a first opening, a second opening, and a medial opening. A cord extends through the conduit with a first end extending from the first opening and a second end extending from the second opening. A medial section of the cord extends from the medial opening defining a loop. A pin is positionable to extend through the loop wherein the cord is coupled to a connector extending from a scooter. Each of a pair of hooks is coupled to an associated one of the first end and the second end of the cord for coupling to a basket of a cart. | 10-29-2015 |
20150360527 | DRAWBAR - A drawbar for a towing vehicle includes a longitudinal support and an attachment which is removably fixed to the longitudinal support. The longitudinal support and the attachment form a towing-eye receiving area, and the longitudinal support and the attachment each have a receiving opening for a coupling pin. The attachment has at least one tilting protrusion which is arranged in a recess of the longitudinal support in a self-locking manner relative to a removal force in the direction of the central line of the coupling pin. | 12-17-2015 |