U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6125480

Vehicle mounted toilet seat

An extension member is attachable to a trailer hitch and extends away from the vehicle and is connected to a seating frame supporting a toilet seat.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 384/421 - For pivot of towed vehicle


Subclass of Class 384 - Bearings
Definition: Subject matter wherein the pressure, or force is at the
No. of patents: 27
Last issue date: 05/16/2006


NumberTitleIssue Date
7044492Connection arrangement comprising a fifth wheel
Coupling arrangement intended for mounting on a towing vehicle provided with parallel frame side members and for coupling the towing vehicle detachably to a towed vehicle such as a trailer. The arrangement incorporates a fifth wheel which is tiltably connected to th...
05/16/2006
7036839Fifth wheel lube plate having a perforated support member
The fifth wheel hitch lube plate (30) of the present invention comprises a perforated support member (40) having a plurality of perforations (50) and a lubricious material (42) molded around the perforated support member such that the lub...
05/02/2006
6623024Fifth wheel coupling
Fifth wheel couplings are used to form an articulated connection between a fifth wheel tractor and a semitrailer. They usually have a fifth wheel coupling plate which is fixed on the fifth wheel tractor by bearing elements (5, 10) and which has a V-shaped...
09/23/2003
6371504Fifth wheel
Fifth wheels are used to establish an articulated connection between a truck tractor and a semi-trailer. They consist of a plate (1) which is attached to the truck tractor and generally has at least one arched slideway lining (4a,4b) acting as a bearing s...
04/16/2002
6045148Semi-trailer coupling
In a fifth wheel with a multipart sliding segmental lining which is rotationally and fixedly arranged on a coupling plate. Comfort is improved and a high service life is made possible by the fact that the sliding segment lining comprises a frictional mate...
04/04/2000
6010141Molded bearing plate assembly
A molded bearing plate of ultra high molecular weight polyethylene is formed with a bearing surface and series of strong, spaced, integrally formed posts extending from the opposed surface. A metal support plate is provided with a series of perforations t...
01/04/2000
5746438Fifth wheel
A fifth wheel includes a coupling plate formed with an insertion slot for receiving a trailer king pin. The insertion slot is provided with a central aperture sized to receive the king pin and formed with a counterbored step. A non-metallic wear ring is f...
05/05/1998
5522613Self lubicating fifth wheel hitch
A fifth wheel hitch having a fifth wheel hitch plate with a bifurcated rear portion defining a kingpin-receiving mouth, throat and latch, an upper surface and an upstanding peripheral rim defining a pocket over substantially all of the hitch plate, a plur...
06/04/1996
5482308Fifth wheel bearing plate improvements
A fifth wheel bearing plate assembly is proposed where a recess is made in the original standard fifth wheel bearing plate, an antifriction plastic liner is placed in this recess, the liner being secured in working position by retaining ears and trapezoid...
01/09/1996
5431424Fifth wheel slip plate
A fifth wheel slip plate is described, in which plastic inserts are used in the plastic slip plate instead of metal skip plates, and in which a composite plastic material is used for outer lateral portions of the slip plate. The plastic of the insert, pre...
07/11/1995
5411281Fifth wheel construction having rotatable bearing plate
A fifth wheel assembly for coupling a tractor to a trailer wherein the assembly includes a housing and a fixed plate which is secured to the trailer unit, and a king pin assembly having a body portion rotatably mounted within the housing, a plate member r...
05/02/1995
5263856Composite fifth wheel bearing plate
A composite bearing plate for a fifth wheel comprises a steel base plate having a layer of polyurethane bonded thereto presenting a bearing surface. The base plate has a plurality of apertures communicating with a plurality of corresponding apertures in t...
11/23/1993
5165714Tractor fifth wheel with bearing plate lubricating liner
A fifth wheel assembly for tractors or other draft arrangement has a bearing plate with a lubricating plate, a peripheral wall with diametrically opposed notches extending above the bearing plate surface and a nonmetallic lubricating wear liner with diame...
11/24/1992
5066035Trailer bearing plate for fifth wheel
An assembly for coupling a tractor to a trailer comprising a fifth wheel bearing plate and a trailer bearing plate assembly. The trailer bearing plate assembly includes a ring having a collar and is adapted to securely attach to an underside of the traile...
11/19/1991
4928987Fifth wheel coupling
A fifth wheel coupling for connection of a semitrailer to a tractor unit is disclosed in which a pair of symmetrical, swivel-articulated closing jaws having semicircular recesses for grasping the king pin have a split bearing comprising an outer bearing h...
05/29/1990
4805926Self-lubricating device for coupling semitrailers
A removable self-lubricating plate for the coupling of semi-trailer vehicles includes an aperture having a diameter so that the plate will frictionally engage the pivot pin of a vehicle mounted on the bearing plate of the vehicle so as to pinch the base o...
02/21/1989
4752081Fifth wheel bearing plate cover with inboard protective skip plates
A low-friction plastic covering on the fifth wheel bearing plate of a tractor is protected from damage during tractor/trailer coupling by a pair of elongated metal "skip" plates. Such plates are preferably rectangular in shape and are positioned in the in...
06/21/1988
4542912Tractor fifth wheel bearing attachment
A fifth wheel bearing attachment for mounting on a tractor and avoiding the necessity of providing oil or grease to lubricate the attachment. The improvement to the attachment comprises an antifriction polyolefin plastic sheet covering to fit over a circu...
09/24/1985
4480849Wheel plate
A wheel plate of a coupler for coupling a tractor and a trailer. The wheel plate has a lubricating arrangement for lubricating the sliding surfaces in the coupling. The lubricating arrangement includes a main groove formed in a central portion of the slid...
11/06/1984
4478425Fifth wheel plate
This invention relates to a fifth wheel stand as used for hitching a semi-trailer on a railway flat car for over-the-rail hauling of such trailers and is especially directed to a system of repair for the fifth wheel, or top plate, of the hitch which inclu...
10/23/1984
4457531Trailer coupling
A trailer coupling is provided with a sliding plate and a coupling plate having an anti-friction layer, preferably of a PTFE composite material. To make it possible that in operation the anti-friction surface always remains paired with the same counter su...
07/03/1984
4410295Universal joint construction
A universal joint construction comprises a plastic housing casing portion which includes an interior cavity forming a ball receiving socket which has an opening in a wall bounding the opening exteriorally of the socket which is bevelled outwardly to an en...
10/18/1983
4263852Side shiftable railway car
A side shiftable railway car in which the bolsters resting on the wheeled trucks engage a movable center plate on the underside of the car. The center plate may be slid sideways along retaining flanges welded to the underside of the car and locked in plac...
04/28/1981
4236863Center pin assembly for power shovels
In a power shovel having a lower frame and an upper frame rotatably supported on the lower frame, a center pin assembly for carrying radial and axial loads imposed on the upper frame comprising a downwardly opening socket mounted on the lower frame, a pin...
12/02/1980
4222331Resilient center plate assembly
A bowl-shaped wear liner for a center plate assembly has an out-turned upper flange that guides the center plate into the center plate bowl during assembly and deforms to seat in sealing relationship with the facing sidewalls of both the center plate and ...
09/16/1980
4169635Fifth wheel bearing plate cover
A bearing plate cover for the fifth wheel of a vehicle engaging the entire bearing and non-bearing surfaces thereof. The bearing plate cover is composed of a flat sheet plastic material having a low friction coefficient and high deflection characteristics...
10/02/1979
4121853Fifth wheel bearing attachment
A preassembled bearing element including a Teflon disc attachable directly to the trailer plates of existing fifth wheel rigs....
10/24/1978
 
Sign InRegister
Username  
Password   
forgot password?