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| Number | Title | Issue Date |
| 8146939 | Roll-stabilizing fifth wheel apparatus A fifth wheel apparatus for detachably coupling a trailing vehicle to a towing vehicle is disclosed. An equalizer bridge is supported on a towing vehicle and is pivotable about a roll axis that extends in a direction of towing motion. The equalizer bridge includes f... | 04/03/2012 |
| RE43290 | Hitch assembly A hitch assembly including a frame for being attached to a tow vehicle; a cradle assembly pivotally attached to the frame for pivotal fore and aft movement; a hitch receiver mounted to the cradle assembly for being attached to a trailer; a leaf spring mounted to the... | 04/03/2012 |
| 7878525 | Fifth wheel hitch system A precision, light weight, high strength hitch for coupling a trailer or other vehicle to a towing vehicle. The hitch includes a mounting ball attached to a portion of the trailer or other vehicle and a ball socket attached to the towing vehicle. The mounting ball a... | 02/01/2011 |
| 7753391 | Torsionally-biased, shock-absorbing fifth wheel hitch A torsionally-biased, shock-absorbing fifth wheel hitch includes a first mounting mechanism removably and non-rotatably mounting a lower frame portion thereof to the bed of a towing vehicle; an upper frame portion; a second mounting mechanism with a pair of opposing... | 07/13/2010 |
| 7562892 | Air supported trailer hitch A trailer connection assembly connects a trailer to the vehicle having a bed. The trailer connection assembly has a base adapted to be placed in the bed of the vehicle. A support assembly is secured on the base for relative movement so that a distance between the su... | 07/21/2009 |
| 7552937 | Shock-absorbing adapter for connecting fifth wheel or gooseneck trailer to towing vehicle A shock-absorbing adapter for connecting a fifth wheel or gooseneck trailer to a towing vehicle including a lower plate, an upper plate, first and second guide means, cushioning means, a first coupling mechanism for releasably connecting the lower plate to the towin... | 06/30/2009 |
| 7380810 | Vehicle hitch with multi-directional damping The present invention is directed to an adjustable trailer hitch that provides a suspended connection between a tow vehicle and an attached trailer. The hitch includes a support member that is adapted to be attached to a tow vehicle and a frame having first and seco... | 06/03/2008 |
| 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 |
| 7261311 | Fifth wheel hitch assembly with self-locator Typical fifth wheel hitch assemblies require the operator to leave the cab of the vehicle to put the fifth wheel hitch assembly into position to receive a king pin of a trailer. The present invention is a fifth wheel hitch assembly that comprises a base assembly, a ... | 08/28/2007 |
| 7222872 | Hitch damping system A hitch damping system for dampening forces transferred between a towed vehicle and a towing vehicle. The hitch damping system includes a first assembly being designed for being operationally coupled to the towed vehicle. A second assembly is designed for being oper... | 05/29/2007 |
| 7192045 | Fifth wheel trailer hitch A fifth wheel trailer hitch assembly having a torsion bar mounted to a bed of a vehicle, a pair of support arms connected to the torsion bar and extending upwardly, a support beam connected to and extending between the support arms, and a coupling assembly mounted t... | 03/20/2007 |
| 7185906 | Fifth wheel coupling for a towing vehicle A fifth wheel coupling includes a receiver that is suspended from the frame of a towing vehicle by a linkage mechanism to permit limited relative longitudinal and vertical displacement of the towing vehicle and a towed vehicle. The receiver is mounted on a wishbone ... | 03/06/2007 |
| 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 |
| 7108272 | Trailer hitch cushioning device and method for using same The present invention includes a base frame or hitch receiver which can be attached to the under surface of a pulling vehicle. A hitch frame is pivotally mounted to the base frame for pivotal movement about a horizontal axis. An air bag is positioned between the bas... | 09/19/2006 |
| 6986524 | Fifth wheel pin box assembly A fifth wheel pin box assembly for towing a trailer behind a towing vehicle including a column, a top member secured to the column, a rubber shear spring, a first plate on the rubber shear spring attached to the top member, a skid pad, a second plate on the rubber s... | 01/17/2006 |
| 6981715 | Sliding hitch A sliding hitch for receiving a trailer includes a rectangular base member having opposed end portions attachable to a bed of a truck. The sliding hitch further includes a plurality of stationary members aligned with each other. One of the plurality of stationary me... | 01/03/2006 |
| 6957823 | Hitch assembly A hitch assembly including a frame for being attached to a tow vehicle; a cradle assembly pivotally attached to the frame for pivotal fore and aft movement; a hitch receiver mounted to the cradle assembly for being attached to a trailer; a leaf spring mounted to the... | 10/25/2005 |
| 6935650 | Trailer hitch An improved fifth wheel hitch for attaching a trailer to a towing vehicle. The hitch includes an outer box support frame having two rails for mounting the trailer hitch to the towing vehicle, a spherical bearing mounted in the frame having a ball joint, and a latch ... | 08/30/2005 |
| 6846000 | Trailer hitch An improved fifth wheel hitch for attaching a trailer to a towing vehicle. The hitch includes an outer box support frame having two rails for mounting the trailer hitch to the towing vehicle, a spherical bearing mounted in the frame having a ball joint, and a latch ... | 01/25/2005 |
| 6739611 | Force-sensing fifth wheel A sensing system employs multiple sensors utilizing mounting structure integrated into a fifth wheel hitch and which is protected from the environment, is capable of accurately measuring forces along longitudinal and vertical axes for providing information as to rol... | 05/25/2004 |
| 6692013 | Fifth wheel suspension A fifth wheel suspension assembly for damping movement between a towed vehicle and a towing vehicle is provided. The suspension assembly includes two rods on which a fifth wheel base is mounted. The fifth wheel base moves along the two rods in a direction... | 02/17/2004 |
| 6170849 | McCall air ride 5th wheel hitch system An articulated air suspended hydraulic-dampened fifth wheel hitch coupling device for isolating the front of a fifth wheel or goose neck trailer hitch from the shock of bumps in the road and the inertia of movement of the trailer. Two inflatable air sprin... | 01/09/2001 |
| 6135483 | Vehicle suspension system A suspension system for a vehicle having a frame and a rear axle for wheels. The suspension system includes a pair of trailing arms, each trailing arm extending from the frame and connected to the rear axle. A pair of torque rods, each has a first end piv... | 10/24/2000 |
| 5882028 | Shock absorptive support structure A shock absorptive support structure in a coupler, improved in both economical efficiency and in practical usefulness, so that a shock due to relative displacement between a top plate and support brackets occurring in a vertical direction as well as in a ... | 03/16/1999 |
| 5639106 | Tractor-trailer fifth wheel air suspension assembly A tractor-trailer fifth wheel suspension assembly which includes a mounting frame adapted to be suitably connected to a tractor body frame and a movable frame for supporting the fifth wheel mounted for parallel vertical movement relative to the mounting f... | 06/17/1997 |
| 5622767 | Fifth wheel insert, laminate composite and method of construction A fifth wheel insert, laminate composite and method of construction, which insert includes a cap or cover having mount tabs for tack-welding the insert on a fifth wheel. The laminate composite includes a composite of ultra-high molecular weight polyethyle... | 04/22/1997 |
| 5620770 | Fifth wheel insert, laminate composite and method of construction A fifth wheel insert, laminate composite and method of construction, which insert includes a cap or cover having mount tabs for tack-welding the insert on a fifth wheel. The laminate composite includes a composite of ultra-high molecular weight polyethyle... | 04/15/1997 |
| 5566963 | Floating pin fifth wheel hitch A floating pin fifth wheel hitch is disclosed. This hitch uses separate points to bear the vertical and horizontal forces created by the towed vehicle. By allowing the pivot point to float and thus bear only the horizontal forces of the trailer it can be ... | 10/22/1996 |
| 5509688 | Vehicle weight transfer subframe A weight transfer subframe for a tandem steer tractor having a tractor frame has a longitudinal subframe member having forward and rearward ends, the longitudinal subframe member pivotally mounted at the rearward end to the tractor frame and the forward e... | 04/23/1996 |
| 5388849 | Compact weight transfer device for tractor trailer vehicles The weight transfer device is for a tractor trailer including a tractor for pulling a trailer. The device comprises a mount having opposite ends provided with attaching elements for attaching transversely the mount between a pair of rearward parallel fram... | 02/14/1995 |
| 5328198 | Fluid and tension band-operated hitch adaptor A fluid and tension band-operated hitch adapter mounted in the bed of a pickup truck or similar towing vehicle for cushioning the fifth wheel, receiving pin or ball coupling element and dampening the resulting trailer load. In a preferred embodiment the f... | 07/12/1994 |
| 5226675 | Fifth wheel suspension An apparatus for reducing the magnitude of changes in a vertical force transmitted to a tractor from a trailer through a fifth wheel hitch. The changes in vertical force are caused by the trailer reacting as an inertial mass as the trailer is moved over u... | 07/13/1993 |
| 5060965 | Trailer coupling with force sensing means A trailer coupling including an intermediate unit to be inserted between a standard-type connecting coupling and a trailing vehicle and having integrated therein a force measuring cell for determining vertical forces. Furthermore, horizontal pushing and p... | 10/29/1991 |
| 4961564 | Air suspension apparatus An air suspension apparatus is disclosed for use with the fifth wheel connection between a tractor and semitrailer. The apparatus includes upper and lower frame sections that are connected by a hinge mechanism for relative pivotal movement. An inflatable ... | 10/09/1990 |
| 4955631 | Fifth wheel coupling for allowing and controlling side to side sway The present fifth wheel sway hitch connects the frame of a mobile camper to the fore and aft tiltable fifth wheel mounting in the box of a pickup truck. The fifth wheel sway hitch permits a transverse or side to side swaying of the mobile camper relative ... | 09/11/1990 |
| 4861060 | Air suspension apparatus An air suspension apparatus is disclosed for use with the fifth wheel connection between a tractor and semitrailer. The apparatus includes upper and lower frame sections that are connected by a hinge mechanism for relative pivotal movement. An inflatable ... | 08/29/1989 |
| 4666181 | Inside loader, embodied as a semi-trailer for a tractor truck, for over-the-road transport frames, in particular for transporting flat glass An inside loader, embodied as a semi-trailer for a tractor truck for over-the-road transport of transport frames for transporting flat sheets in a carrying frame having parallel longitudinal members, on the outside of which axle rockers, supported on air ... | 05/19/1987 |
| 4653770 | Hydraulic fifth wheel This invention is a tractor trailer hydraulic fifth wheel which includes a base attached to the tractor and a slidable plate attached to the trailer, and a retatchable assembly between the base and the slidable plate which includes a brak away latch there... | 03/31/1987 |
| 4580806 | Pneumatic suspension system A vibration isolation suspension system comprises a support plate mounted on a main support plate on the spaced parallel frame members of a truck tractor. The support plate is mounted on a transverse pivotal axis located near the forward end of the tracto... | 04/08/1986 |
| 4566716 | Device for connecting a tractor to a semitrailer A tractor-semitrailer connecting device, includes, in a usual way, a fifth wheel connected to the tractor and suited to receive the complementary support element of the semitrailer. Fifth wheel 15 is directly supported and suspended on rear axle 2 of the ... | 01/28/1986 |
