Class 298/22J - Jack-knife linkage actuated by hydraulic means

Subclass of Class 298 - Land vehicles: dumping
No. of patents: 32
Last issue date: 04/28/2009

Number	Title	Issue Date
7523994	Hoist A hoist, for example, capable of use for raising and lowering a truck bed to and from a truck frame. In certain embodiments, a scissor-type hoist having a hydraulic cylinder pivot located to improve hoist lift efficiency (e.g., thereby exhibiting improved hoist lift...	04/28/2009
7111908	Material/equipment handling assembly A trailer assembly includes a body having a plurality of sidewalls for defining a cavity therebetween. Selected sidewalls are pivotally coupled to the body and selectively adaptable between loading and unloading positions and another sidewall defines a substantially...	09/26/2006
7090305	Vehicle dump body elevation device, kit, and method relating thereto The present invention is directed toward a vehicle dump body elevation device, kit and method related thereto. The elevation device and kit comprise at least one hinge assembly for attaching a dump body to a vehicle frame and at least one hoist having a lower end pi...	08/15/2006
6976740	Ball screw hoist system for vehicle A vehicle is disclosed which includes a chassis and a body pivotally secured to the chassis at a hinge. A hoist system is provided which extends between the body and the chassis for pivoting the body about the hinge between a storage position and a range of dumping ...	12/20/2005
6916142	Utility vehicles A utility vehicle for removably mounting and carrying a plurality of different equipment, such as turf maintenance equipment, is provided. The utility vehicle is motorized and has a support frame. A multi-purpose platform is mounted to the support frame. The multi-p...	07/12/2005
6910533	Mechanism that assists tractoring on uniform and non-uniform surfaces A six-bar linkage mechanism for conforming to the configuration of a tractored surface having a central link defined by a tool body and a saddle link spaced from the central link and movable for conforming with the tractored surface. A pair of front links each havin...	06/28/2005
6561589	Dual acting truck hoist A dual acting underbody truck bed hoist is provided which exhibits increased lifting efficiency and safety. The hoist, in some embodiments, further includes an alignment of its various pivots and booster arm so as to maximize the height achieved during in...	05/13/2003
6543856	Dual acting truck hoist with safety latch A dual acting underbody truck bed hoist is provided with a self-latching mechanism for preventing rebound if a maneuver is attempted by the truck operator to jar hung up dirt from the bed when raised. The hoist further includes an alignment of its various...	04/08/2003
6257670	Side dump trailer A side dump trailer comprising a trailer body pivotally mounted on a wheeled frame to enable the material within the trailer body to be dumped from one side of the trailer. The body is pivotally moved with respect to the wheeled frame by means of a plural...	07/10/2001
6186596	Truck hoist A hoist for raising and lowering a truck bed to and from a truck frame is provided which utilizes a lever to accomplish initial lift and to further position the hydraulic cylinder at a more efficient angle for completion of the lift process. The hoist fur...	02/13/2001
5829842	Recyclables collecting truck A truck for separately storing and discharging recyclable materials includes a chassis, a cab, and a frame pivotably mounted on the chassis rearwardly of the cab and supporting a housing with a platform extending along one side to the cab. Partition walls...	11/03/1998
5513901	Hoist mechanism A hoist mechanism including a hoist subframe, a body subframe, a dump linkage pivotally coupling the body subframe to the hoist subframe such that the body subframe pivots about an instant center which moves continuously as the body subframe pivots and an...	05/07/1996
5088795	Dumping trailer and truck for a container A dumping trailer and truck for containers has a frame for mounting and keeping firmly a container thereon and an oil pressure cylinder possible to raise the frame inclinedly with its front up so shock-enduring goods such as scrap, grain, etc., can be loa...	02/18/1992
5074622	Scissor frame lift apparatus for dump trucks A scissor frame lift for pivotally moving a dump body hingedly secured to a truck frame comprising upper and lower frame assemblies having the rearward ends thereof pivotally secured together and which are pivotally moved relative to one another by a hydr...	12/24/1991
5048896	Minimum profile hoist An improved scissors-type hoist for dump truck bodies comprises an upper frame and a lower frame pivotally connected at a scissors axis. One end of the upper frame opposite the scissors axis is pivotally attached to the dump body, and one end of the lower...	09/17/1991
4951999	High lift dump truck A high lift dump truck having a chassis on a truck, and a body portion having a tailgate being positioned on the chassis and being supported in a lowered position. A front hoist having a first end pivotably mounted at a generally central location on the c...	08/28/1990
4741576	Dump hoist A hoist mechanism is provided that includes a first and a second lifting arm connected at a first pivot point, a hydraulic cylinder connected to said lifting arms, and a stop located on one end of the second lifting arm. During the initial lifting of the ...	05/03/1988
4592593	Scissor frame lift apparatus for dump trucks A scissor frame lift apparatus is employed in combination with a dump truck and the like, the hoist including upper and lower pivotally interconnected leg members which in turn are pivotally connected at opposite ends to the underside of the dump body and...	06/03/1986
4556357	Truck having articulated chassis for hauling goods A truck in the nature of an automotive vehicle for carrying and moving heavy loads, bulky articles, freight, etc., has a wheeled front section which includes a cab and an engine compartment and a wheeled rear section which includes a cargo-receiving bed. ...	12/03/1985
4480871	Dump bed stabilizer A pair of elongated arm assemblies are provided each having first and second ends. The first ends of the arm assemblies are pivotally connected for relative swinging of the arm assemblies in a plane paralleling both arms and the second end of one arm asse...	11/06/1984
4415300	Transporter-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
4348054	Convertible adjustable bed vehicle An adjustable, tilting vehicle bed which is power actuated and is capable of having its position selectively altered between positions in which it is flat, raised, tilted for dumping a load and tilted to provide a loading ramp....	09/07/1982
4302050	Truck hoist A hoist mechanism that more effectively uses its hydraulic capacity is comprised of a first and a second pair of lifting arms connected at a first pivot point, a hydraulic cylinder connected to said lifting arms, and a pivoting stop means that coordinates...	11/24/1981
4253536	Articulated, 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
4176881	Lock device for dump trucks A self acting lock which automatically locks down the dump body of a truck and automatically releases when the body is to be raised. Two pairs of lever arms which are pivoted together cooperate with a single acting hydraulic cylinder to provide a hoist fo...	12/04/1979
4168861	Dump-hoist conversion system A dump-hoist conversion system particularly suited for providing a dump capability in pick-up trucks. A modified scissors hoist is utilized having transversely spaced lower channel members as well as lift members. These components mutually nest when the b...	09/25/1979
4161338	Pickup truck hoist attachment A scissor hoist attachment for pickup truck beds to convert a fixed bed truck with a passenger cab and hauling bed supported on a frame to a tilting bed truck. The hoist upon installation allows the truck bed to be rotated from a horizontal to a tilt posi...	07/17/1979
4148528	Scissor frame for a truck hoist A scissor frame for a truck hoist for stabilizing a dump body mounted upon a truck when it is lifted and tilted. The frame includes an upper leg and a lower leg hinged together by an offset pivot to permit the legs to fold against each other. The lower le...	04/10/1979
4066296	Truck bed tilting mechanism A truck bed tilting mechanism is provided for use between the hauling bed and frame of a truck having a bed pivotally connected adjacent the rear of the truck frame to permit relative rotation between the hauling bed and the frame. The tilting mechanism i...	01/03/1978
4052105	Truck hoist A truck hoist assembly for use in combination with a dump vehicle having a chassis and a dump bed pivotally mounted to the rear of the chassis. A pair of relatively small sized hydraulic cylinders are pivotally connected adjacent the rear pivot of the dum...	10/04/1977
4019781	Hydraulic hoist for pickup bed The specification discloses an attachment for converting a fixed bed truck with a passenger cab and hauling bed supported on a frame to a tilting bed truck. The attachment permits the rotation of the truck bed from a horizontal to a tilt position, such th...	04/26/1977
3985250	Vehicles for taking on, transporting, and discharging a load A self-loading vehicle having an elongated horizontal frame to one end of which is connected a vehicle-propelling structure while at the other end region of the frame there is a bell crank structure pivoted to the frame for turning about a bell crank axis...	10/12/1976

PatentStorm

Quotables

PatentStorm News

Class 298/22J - Jack-knife linkage actuated by hydraulic means