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Class 298/20R - Vehicle-motion controlled


Subclass of Class 298 - Land vehicles: dumping
Definition: Where the operation is effected by a movement of the vehicle
No. of patents: 22
Last issue date: 06/29/2004


NumberTitleIssue Date
6755479Trailer with tilting bed
A trailer for attachment to a hitch of a tow vehicle, the trailer comprising a bed, or some other type of load carrying portion, connected for pivotal movement with respect to the draw bar of the trailer. The bed is movable between a generally horizontal, hauling po...
06/29/2004
6290301Self-dumping cart
An apparatus and method for an improved self-dumping cart. The dump cart has a box pivotally mounted on a frame and wheels. The cart box is normally locked to the frame in an upright position for loading and towing. Then to dump, the box is unlocked from ...
09/18/2001
5687981Height adjustment system for trucks
A height adjustment system for automatically adjusting the height of the tail of a tilt bed truck in response to changes in the terrain profile. The tail of the bed of the truck is adjustable in height relative to ground level by a lifting mechanism, such...
11/18/1997
5618155Construction site hauling system
A hauling system for loose bulk material at a construction site uses a self-propelled vehicle and a trailer that is not self-propelled which are releasably connected by a system that is operable by a single operator who aligns, connects, locks, unlocks an...
04/08/1997
5452942Device for lowering a dump truck bed
A device and method for automatically lowering the bed of a dump truck by disengaging the hydraulic pump and the power take-off when the dump vehicle reaches or exceeds a predetermined speed or when the transmission is shifted to or above a predetermined ...
09/26/1995
5030053Round hay bale transporter/feeder
A bale handling apparatus for receiving, transporting, discharging, and feeding of large round bales of hay is provided. The apparatus includes an upwardly open semi-cylindrical cradle rotatably supported above a trailer frame on a scissor device attached...
07/09/1991
4968096Dump trailer with lifting mechanism
A cargo-receiving bed is pivotally mounted upon a wheeled undercarriage. An elongated actuator is telescopically and slidably mounted in the undercarriage and is hitched at its free end to a tractor. A lifting mechanism is connected to a portion of the ac...
11/06/1990
4889390Tipping trays
This invention relates to a towable trailer having a tipping tray. The tipping tray incorporates an axle and wheels, and is mounted to the trailer's chassis via a pivot. The chassis incorporates a guide slot which accommodates the tray's pivot. A cam arra...
12/26/1989
4723887Load carrying and tipping vehicle
A load carrying and tipping vehicle (11) adapted to be coupled to a power-operable vertically movable part (15) of a motor vehicle (13) such as a front end loader in which case the bucket of the front end loader constitutes the vertically movable part. Th...
02/09/1988
4711499Tipper trailer
The trailer bed plate (3) is tipped by the towing vehicle moving backwards. The tow bar (1) is hinged to a sliding hinge (2) disposed on the underside of the bed plate, and connected via at least one connecting rod (4) to wheel-supporting frame (5) which ...
12/08/1987
4659147Dump trailer
A dump trailer includes a frame attached below a trailer bed and having a first pair of parallel outer rails which are inclined upwardly from front to rear and a pair of center rails which are inclined downwardly from front to rear. A towing tongue extend...
04/21/1987
4643625Hay-hauling trailer
The invention is a hook and latch assembly for hauling hay, the device being mounted on a trailer axle and comprising a front assembly, a rear assembly, attached to the front assembly, and a hook assembly pivotally attached to the rear assembly by means o...
02/17/1987
4639043Self-dumping trailer
A trailer designed to be towed behind a vehicle with a frame that is slidably attached to the trailer body. Inclined ramps are formed on the members of the frame such that when the frame slides rearward relative to the trailer, rollers on the underside of...
01/27/1987
4632461Dump cart
A wheeled dump cart is described which may be dumped from the user's normal position behind the handle. The cart includes a box member pivotably connected to the frame. A cam member may be pivoted from a normal raised position to a ground-engaging positio...
12/30/1986
4417765Dump cart
A dump cart is disclosed having a box removably mounted on an axle support and pulled by a drawbar. A latch is mounted on the drawbar to coact with a latch catch on the side of the box. The latch is biased by biasing means such as a spring located within ...
11/29/1983
4415300Transporter-unloader for large cylindrical hay bales
A transporter-unloader for large cylindrical hay bales features a main frame and a load frame, the load frame partially overlying the main frame and pivoted to the rear end of the latter frame. The rear end of each frame is equipped with a pair of wheels,...
11/15/1983
4318664Self-stabilizing load lifting and handling vehicle
The present invention relates to a self-stabilizing load lifting and handling vehicle, wherein the chassis thereof is composed of two elements bearing, respectively, the rear axle and the front axle, these two elements being pivoted on each other about a ...
03/09/1982
4253536Articulated, cross-country vehicle
An articulated, cross-country motor vehicle, especially for forestry work and the transportation of timber, comprising front and back pairs of bogies with belts, pivotally attached to the frame of the vehicle by means of transverse axles or shaft journals...
03/03/1981
4215963Self-loading hay-bale-carrying trailer
A two-wheeled trailer has a V-shaped hay-bale-holding cradle pivoted about an axis closely above and parallel to the wheel axle. In its bale-loading position, parallel arms of the cradle extend rearwardly from the trailer and close to the ground for slidi...
08/05/1980
4198096Trailer with a dumping bottom
A trailer has a torque arm assembly pivotally mounted between the upper front portions of a pair of opposed side walls. A bottom is slideably and pivotally supported upon a bottom support member extending between the side walls and has a upwardly extendin...
04/15/1980
4058231Apparatus for moving an exchangeable platform or a container on to and off of a tipping frame of a lorry, trailer, or the like
Method and apparatus for unloading a platform from a lorry having a tipping frame, the tipping frame having an endless belt or chain which in turn has an elongated chain connected thereto. The chain has hook and wedge member thereon adapted to connect to ...
11/15/1977
3993352Energy absorbing dump truck body
A dump truck has a carrier that is placed on its body frame so as to be longitudinally movable thereon when longitudinal impact force exceeding a given value works on the truck's body. Energy absorbing means are interposed between said frame and carrier, ...
11/23/1976
 
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