Fluid-pressure Operators Patents (Class 298/22R)
  • Patent number: 6142576
    Abstract: An assembly for coupling a dump truck bed to a frame of a work machine includes an attachment member secured in fixed relation to the frame. The attachment member has a plurality of first fastener apertures defined therein. The assembly also includes a hydraulic cylinder having a first end and a second end. The first end of the hydraulic cylinder is pivotally coupled to the dump truck bed. The assembly further includes a bearing assembly having an inner race and an outer race, wherein (i) the outer race is disposed around the inner race such that the outer race rotates in relation to the inner race thereby defining a central axis of rotation, (ii) the outer race is fixed in relation to the second end of the hydraulic cylinder, (iii) the inner race is fixed in relation to the attachment member, and (iv) the inner race has a plurality of second fastener apertures defined therein.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: November 7, 2000
    Assignee: Caterpillar Inc.
    Inventors: Tom Brooks, Jason Martin, Robert L. McNabb
  • Patent number: 6116697
    Abstract: An articulated work machine includes an engine mounted in front of a load carrying receptacle on a trailer. The articulated work machine includes a cab assembly which has a front axle assembly on which number of front wheels are mounted, and a seat for supporting an operator of the work machine. The articulated work machine further includes a trailer assembly having a rear axle assembly on which a number of rear wheels are mounted. The articulated work machine still further includes a receptacle adapted to receive and carry loads. The receptacle is supported on the trailer assembly. The articulated work machine yet further includes a coupling which pivotally connects the cab assembly to the trailer assembly. The articulated work machine still further includes an engine assembly for propelling the work machine. The engine assembly is mounted on the trailer assembly. The assembly is interposed between the receptacle and the number of front wheels.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: September 12, 2000
    Assignee: Caterpillar Inc.
    Inventors: Jerry F. Smith, Alan D. Young
  • Patent number: 6092966
    Abstract: A multiple purpose dump unit designed to be mounted on a vehicle for hauling, dumping, spreading and the collection of refuse as well as for distributing salt, sand and other aggregates. The unit has a single dump body with a sloping, fixed endgate and a longitudinally extending conveyor along the open bottom of the dump body, and the unit is provided with a spreader mechanism at the exit gate from the conveyor to facilitate spreading of salt, sand and other aggregates. The unit is pivotally mounted near its rear end so that it can be lifted by hydraulic cylinders for dumping, spreading aggregate, asphalt, etc. The dump unit can be sized so that the vehicle can navigate narrow streets and alleys and is mounted at a height and with sides of a height to meet the requirements for manual refuse loading.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: July 25, 2000
    Assignee: Highway Equipment Company
    Inventors: Charles Martin, Michael Dean, Peter Cervelli
  • Patent number: 6089813
    Abstract: A collection vehicle including a material handling system, storage body, compaction system, storage system, and dump system all of which have contact surface areas, wherein the surface areas are self-lubricating. The surface areas may be found in the vehicle's fluid biased cylinder bushings, tailgate hinges, storage body pivot joints, articulated joints, rotation joints, and slides. The self-lubricating, low friction, surface areas reduce wear and repair associated with conventional collection vehicle.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: July 18, 2000
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventors: Garwin B. McNeilus, William P. Bartlett
  • Patent number: 6086076
    Abstract: A suspension system for a large dump truck. The dump truck having a main frame with laterally spaced frame members each associated with a rear wheel mounting hub with a wheel on each of its sides. Each hub is attached to a respective frame member by an attachment member pivotally attached to the respective frame member by a pivotal mounting and a suspension spring pivotally attached to the hub by a spherical bearing and to the respective frame member at a pivot mounting. The connections of the hub allow for limited pivotal movement of the hub about transverse and longitudinal axes relative to the frame members. A dump body is pivotally attached to the frame members at the pivot mounting or to the rear and above a suspension pivotal connection at a body pivotal connection.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: July 11, 2000
    Assignee: BHP Coal Pty Ltd.
    Inventors: Hans Prem, Francis Allen Bartley, Darin Ross Miller, Alan William Dickerson
  • Patent number: 5975643
    Abstract: A bag actuated tilting device where the area of cross section of the bag is sized such that available pressure multiplied by the bag cross sectional area multiplied by the distance from the pivot perpendicular to a line drawn from the center of the bag base to the center of the cross section equals the load that is being lifted multiplied by the distance from the pivot perpendicular to the line of action of the load. The bag is designed so that the cross sectional area of the bag increases from the top of the bag, mounted to the load, to its base, whereby as the bag collapses, the top of the bag moves downwardly toward its base, folding inwardly onto itself without buckling. In addition, the present invention provides for securely mounting the bag at both ends to the thrust plates nearest to the hinge that causes the bag to effectively become a fixed end-fixed end column resulting in reduced potential for buckling.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: November 2, 1999
    Assignee: Load Hog Industries, Inc.
    Inventors: Fred P. Smith, John Kowalski, Tim E. Grosland, James R. Hendry
  • Patent number: 5921743
    Abstract: A detachable dump bucket assembly for selective attachable with a skid steer loader. The assembly includes a substantially rigid frame having side rails connecting with opposed ends of front and rear rails. An attachment frame which is operative to connect with the lift arms of the loader is connected with the rear rail of the frame. A pair of swivel support wheels and a support axle are connected with a teeter-totter mounting with the front rail of the frame. A hydraulically controlled dump bucket is provided and pivoted about the front rail between a carry position and a dump position. The assembly, when attached with the lift arms of the loader, is capable of carrying and dumping material weighing at least two times the weight of the loader. It is also capable of being raised by the lift arms into an elevated position for carried movement.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: July 13, 1999
    Inventor: Rodney Slagter
  • Patent number: 5836657
    Abstract: A detachable stabilized intermodal container dumping apparatus for removable mounting on an intermodal container transport vehicle includes a container support frame having forward and rearward ends, a lower frame section and an upper frame section. The upper frame section is constructed of at least two upper section long sill members and at least two upper section crossbeam members mounted on the upper section long sill members. The lower frame section is constructed of at least two lower section long sill members and at least two lower section crossbeam members mounted on the lower section long sill members. The upper frame section is hingedly connected to the lower frame section adjacent the rearward end of the container support frame along a hinge pivot axis extending generally perpendicular to the longitudinal axis of the container support frame such that the upper frame section may pivot relative to the lower frame section, thus permitting dumping of an intermodal container situated thereon.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: November 17, 1998
    Assignee: Omaha Standard, Inc.
    Inventors: Jeffrey L. Tilley, Ross F. Meyer
  • Patent number: 5738022
    Abstract: A truck is parked adjacent a coal boiler ash recovery unit and includes a first inlet pipe provided to receive ash from the recovery unit and an outlet pipe provided to convey dust from within the storage chamber of the truck to a bag house where the dust is loaded onto another truck. Water spray may be provided within the storage compartment of the first-mentioned truck to moisten the captured material to reduce dusting.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: April 14, 1998
    Assignee: Florida Power Corporation
    Inventor: William P. Reilly
  • Patent number: 5681095
    Abstract: A dump body for a vehicle has a floor slab with a front panel located proximate the front end of the floor slab. A pair of side panels extending upwardly from opposed sides of the floor slab are structurally connected thereto and to the front panel. A plurality of spaced trusses are welded to the under surface of the floor slab. A hinge at the rear of the dump body permits tipping of the dump body relative to the frame members of the vehicle by a hoist. The floor slab and trusses are made of steel and the side and front panels are made from aluminium.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: October 28, 1997
    Assignee: Diesel Equipment Limited
    Inventor: John C. Martin
  • Patent number: 5653469
    Abstract: A mobile storage tank having a jack system on the front thereof and a rear wheel lift system to facilitate the draining of fluid from the tank and the towing of an empty tank from one job site to another. Recesses are provided in the walls of the storage tank for receiving manholes, fittings and a ladder so that a maximum volumetric dimension can be obtained for the storage tank while still conforming to highway laws regulating the size of trailers. The manholes are positioned at a predetermined height above the ground to allow a person standing on the ground to have access to the interior thereof for cleaning and the like.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 5, 1997
    Inventor: Sidney Allen Wade
  • Patent number: 5618155
    Abstract: 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 and disconnects the self-propelled vehicle and the trailer, preferably without leaving the cab of the self-propelled vehicle. A hook secured on a tool of the self-propelled vehicle and a ring secured, directly or indirectly, to the trailer, releasably connect them. Rotation of the tool, e.g. the bucket of a wheel loader, locks and unlocks the coupling. The operator of the self-propelled vehicle has direct visible sight of the coupling. The ring can be mounted at the end of an articulated frame pivotally connected to a hydraulic jack cylinder. A dump body of the trailer can be raised by a hoist piston. Vertical reciprocation of the tool pumps the jack cylinder which produces hydraulic power to activate the hoist cylinder via a valve body.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: April 8, 1997
    Inventor: Peter Tighe
  • Patent number: 5580211
    Abstract: A transportation system is adapted for transporting and removing roll on/roll off containers from a trailer surface. A tractor having a fifth wheel is used to tow the trailer. The tractor carries a supplemental platform, which is placed over the fifth wheel area to permit transfer of a container from the trailer onto the platform of the towing tractor for transportation of the container to a delivery site. The container and tractor also include mating members to permit raising one end of the container relative to the other to facilitate dumping of the contents from the container while it is carried on the supplemental platform on the tractor. A specific form of container, particularly suitable for use in the transportation system, is a double walled, insulated container for carrying hot mix asphalt.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: December 3, 1996
    Inventor: William F. Mengel
  • Patent number: 5560684
    Abstract: A tipping vehicle has a tipping tray which is pivoted about a hinge by inflation of a flexible gas bag. The bag is constructed in two sections, the lower of which is generally cylindrical with parallel side walls and the upper of which is generally conical with its central axis tilted toward the hinge. The bag may be inflated with vehicle exhaust gasses.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: October 1, 1996
    Assignee: XPT Power Industries Pty. Ltd.
    Inventor: Duncan B. Gilmore
  • Patent number: 5513901
    Abstract: 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 actuator for moving the body subframe between a lowered position and a raised position. The instant center is positioned at a point below the hoist subframe with the body subframe in the lowered position, and progresses to a point above the hoist subframe as the body subframe is lifted to the raised position.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: May 7, 1996
    Assignee: Heil Company
    Inventors: Fred P. Smith, William R. Johnson, Fred T. Smith
  • Patent number: 5476285
    Abstract: A suspension system for the main frame of a large dump truck has laterally spaced frame members each associated with a wheel mounting hub. For each hub, a hollow forward attachment arm is supported by a bearing block having a longitudinal journal and a transverse journal. The longitudinal journal receives the attachment arm and the transverse journal receives the ends of a shaft rigidly secured to the frame members and extends therebetween to define a cross member. A vertically compliant suspension strut includes a cylinder rigidly attached to a support secured to the frame member and receives a piston attached to a rear extension from the hub via a bearing which allows each hub to rotate about longitudinal and transverse axes relative to the respective frame member. Also disclosed is a dump truck body having side walls, a floor and an end wall. The floor is reinforced by longitudinal reinforcing beams and by only one transverse beam.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: December 19, 1995
    Assignee: BHP Australia Coal PTY Ltd A.C.N.
    Inventor: Alan W. Dickerson
  • Patent number: 5456520
    Abstract: A trailer for selectively transporting either a first or second substance is disclosed. The trailer includes a substantially flat bed and has two containers disposed thereon, each of which is capable of storing a different type of substance. An operator may choose to transport materials in either one of the two containers. Accordingly, the container to transport the substance is shifted toward a balanced load distribution point along the trailer while the empty container is moved to one end of the trailer. In the preferred embodiment, the two containers are coupled together so that the movement of one container along the trailer automatically causes a corresponding movement in the other. One container moves along the trailer by virtue of a plurality of wheels while the other slides along rails separated by a bearing.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: October 10, 1995
    Assignee: Jack B. Kelley, Inc.
    Inventors: Brook W. Adams, Richard P. Bell, Timmy R. Harvey, W. Glen Hicks, Raymond Housh, Oliver K. Kelley, Donald P. Ryan
  • Patent number: 5397172
    Abstract: A dump truck having an endless-conveyor structurally integrated into the bottom of the dump body, a conveyor hood opening in the tailgate of the dump body in longitudinal alignment with the conveyor and a conveyor hood mounted within the conveyor hood opening for being shifted between a forward extended position thereof covering the rear end of the conveyor and a rearward retracted position thereof generally flush with the inner face of the tailgate to facilitate use of the truck for open truck hauling with the tailgate in a flat open position extending rearwardly from the bottom of the dump body.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: March 14, 1995
    Assignee: Air-Flo Mfg. Co., Inc.
    Inventors: Charles S. Musso, Jr., Tom W. Musso
  • Patent number: 5383714
    Abstract: A vehicle is provided with a dump bed which can be pivoted from a horizontal orientation to a fully upright position to facilitate loading of material onto the dump bed and unloading material therefrom. A hydraulic or other type cylinder is used to raise and lower the dump bed. The cylinder is oriented at an acute angle from the horizontal and is attached at one end to a rear portion of the dump bed. The other end of the cylinder is attached to a crossbeam at a forward location. The dump bed includes downward extending arms and extensions that carry pivot pins about which the dump bed rotates. The location of the pivot axis in this manner creates a crank arm that provides the cylinder with the leverage necessary to raise the dump bed.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: January 24, 1995
    Inventor: H. Victor Hunter
  • Patent number: 5273317
    Abstract: A truck frame (100) for use hauling heavy loads in a dump body (14) pivotally attached thereto utilizes a first beam (102) as a central spline for the truck (10). The first beam (102) is constructed by welding steel sheeting together around a plurality of support gussets (124). A pyramidal structure (102) connects this first beam (102) to a second beam (106). A pair of outriggers (110) extend from the second beam (106). The front suspension attaches the front wheels (16) of the truck (10) to the frame (100). The rear wheels (18) attach to the distal end of the first beam (102c) by the rear suspension (24). A cab support structure (120) extends across the proximal end of the first beam (102a). The monobeam construction allows for the use of two engines (30) mounted on either side of the first beam (102). If two engines are used, a second pair of outriggers (130 ) are utilized for support.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: December 28, 1993
    Assignee: Komatsu Dresser Company
    Inventors: James F. Kunz, Edward G. Orth
  • Patent number: 5269592
    Abstract: A hydraulic telescoping ram of the type suitable to tip dump trucks and the like, which permits the use of outer aggressive seals and a bore sealing device by providing a conduit which hydraulically connects the upper end of each cylinder of the telescopic ram with an oil reservoir. This makes it possible to use seals which are not aggressive and which can run on surfaces of somewhat less than top quality, on the internal bottom faces of the rams so as to allow the passage of a small quantity of oil into a gap formed within the ram and cylinder and between the aggressive and non-aggressive seals. The oil which passes the non-aggressive seal is returned to the oil reservoir when the ram is extended.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: December 14, 1993
    Assignee: Diesel Equipment Limited
    Inventor: John C. Martin
  • Patent number: 5252020
    Abstract: A collection system of recyclable waste includes one or more central vehicles loaded by one or more satellite vehicles all which segregate recyclable materials from non-recyclable materials. The central vehicles are loaded through openings matched to the bins on the satellite vehicles, the latter which may dump their contents along different axes, permitting the bins to be sized flexibly to the openings of the central vehicle and allowing the waste to be loaded and unloaded with a minimum of labor and with reduced risk of commingling. The axis of dumping of the bins and the placement of the receiving openings of the collecting vehicles allow efficient unloading of the segregated material without interference from traffic or unnecessary manual operation.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: October 12, 1993
    Assignee: Expert Disposal Service, Inc.
    Inventors: Russell C. Kinney, Donald C. Kinney, Lyle Paullin, Richard Paullin, Jeffrey W. Parrott, Donald Smith
  • Patent number: 5197782
    Abstract: There is disclosed an apparatus which includes a vehicle and a container supported on the bed of the vehicle for use in hauling and dumping material. The bed of the vehicle is tiltable and the container has a gate for closing an open end of the container, when the bed is flat, and permitting the gate to move to open position when the container is tilted with bed. The gate is latched in closed position in response to an actuator on the vehicle.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: March 30, 1993
    Assignee: May Fabricating Company
    Inventors: Robert A. May, Patrick T. Earp
  • Patent number: 5137366
    Abstract: A small mixer vehicle structured as a trailer has clutching mechanics for frictionally revolving a rotatable drum during towing and for both manual and powered auxiliary drum turning when the trailer is parked. For manual drum turning, an attachable crank is provided. The crank attachment also accepts connection by a hydraulic motor which is remotely powered by an auxiliary pump. The trailer drum support structure has mechanics for placing the drum in a tilted position for unloading and for returning the drum to a horizontal towing position. A tow bar attached to the trailer includes adjustable mechanics for leveling the trailer.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: August 11, 1992
    Inventors: Paul C. Hill, Leonard A. Hill, Felesta Smith
  • Patent number: 5067774
    Abstract: An inflatable bag (17) for use in exhaust powered tippers is constructed from blanks of flexible air tight material using a side wall template (10) and end wall templates (11, 12). The blanks are made so that the finished bag when fully inflated assumes an oblique cone-like shape (17) with rounded ends (19, 20). The side wall material is preferably a fabric having waft and weft fibres of uniform tensile strength so that the tension in the side wall is in the longitudinal direction as the bag inflates in order to reduce the tendency of the bag to rotate on its couplings. The invention can be provided in kit form where the bag is coupled for limited movement to load transmitting end plate (21, 22) for retro fitting the bag to a vehicle.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: November 26, 1991
    Assignee: Marketmont Pty, Ltd.
    Inventor: Mark G. Trowland
  • Patent number: 5040849
    Abstract: A carrier for lifting, transporting and dumping a large load box or the like is provided including a wheeled trailer having a forwardly projecting tongue for pivotal connection to a tractor, a central longitudinal frame rigidly connected to the tongue and a rear cross member rigidly connected to the central frame member. A cross tube for journalling the trailer wheels is attached to a support arm pivotally connected at one end to one of the trailer frame members and rigidly connected at the other end to the cross tube and a first hydraulic cylinder interconnects the cross tube and another one of the trailer frame members for swinging the support arm about its pivotal connection so as to raise and lower the rear end of the trailer frame member with respect to the trailer wheels.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: August 20, 1991
    Assignee: Kress Corporation
    Inventors: Dennis R. Thomas, William L. LaBerdia, William N. Birkey
  • Patent number: 5033794
    Abstract: A locking device for a hydraulically operated dump truck secures the lift cylinder against unwanted oscillation when the dump body is in the lowered travel position by securing the top of the cylinder to the doghouse of the dump body. The cylinder is connected to the bottom of the dump body for lift purposes and pivots away from the doghouse during lifting.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: July 23, 1991
    Assignee: Lanson Industries, Inc.
    Inventor: Henry L. Vick
  • Patent number: 5020857
    Abstract: A fluid dynamic restrictor limits the speed at which the bed of a dump truck can be lowered by discharging fluid from a lift cylinder. The fluid dynamic restrictor defines a fluid vortex that provides a pressure drop proportional to the square of the fluid flow rate. Therefore the maximum rate at which the bed can be lowered is much the same regardless of whether the bed is empty or full. In contrast to a restrictor in the form of a throttled valve or wire mesh, the fluid dynamic restrictor is not easily plugged by debris. The fluid dynamic restrictor also offers little resistance in its reverse direction, which facilitates rapid lifting of the bed.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: June 4, 1991
    Inventor: Peter C. Bertelson
  • Patent number: 5021156
    Abstract: The truck has an hydraulic pump for receiving dredged mixture of solids and water from a pumping site and delivering the mixture to the truck body. A fixed partition wall is mounted transversely in the body and divides the body into first and second open compartments. The first compartment receives the mixture from the pump means to enable solids to settle at the bottom of the first compartment and the water rises towards the top of the compartment. The second compartment receives the water which rises in the first compartment and the partition wall. Drain means are selectively operable to effect removal of substantially all water from the second compartment. A one-way valve is located between the first and second compartments and is operable when the body is tilted to permit residual water in the second compartment to flow into the first compartment to effect removal of remaining solid matter from the first compartment by washing it out of the tilted body via the open tailgate.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: June 4, 1991
    Assignee: Subaqueous Services, Inc.
    Inventor: Albert H. Sloan
  • Patent number: 4968097
    Abstract: A carrier for lifting, transporting and dumping a large load box or the like is provided including a wheeled trailer having a plurality of frame members and a forwardly projecting tongue for pivotal connection to a tractor. A first hydraulic cylinder is provided for raising and lowering the trailer frame with respect to the trailer wheels. A pair of laterally spaced jaw members are secured to the rear cross frame member of the trailer to receive transverse hinge pins secured to the underside of the load box adjacent its rear end and a latch plate is provided to lock the transverse hinge pins in the jaws.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: November 6, 1990
    Assignee: Kress Corporation
    Inventors: Dennis R. Thomas, William L. LaBerdia
  • Patent number: 4958845
    Abstract: Extendable trailer apparatus includes a fixed frame and a frame slidably connected to the fixed frame and movable relative to the fixed frame for lengthening and shortening the trailer apparatus. The movable rear frame includes an axle and wheels secured to it, and a load is secured to the fixed frame. The two frames are movable for adjusting the weight of the load on trailer axles including axles secured to the fixed portion of the trailer and an axle or axles secured to the movable frame. One embodiment of the apparatus includes an end dump bed with tapered sides and a sloping bottom for enhancing the dumping capabilities.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: September 25, 1990
    Inventor: Donald J. Parks
  • Patent number: 4929142
    Abstract: A subframe structure for a tilting bed vehicle carrier. The subframe structure has an attached wheel lift and the subframe is pivotally mounted on the chassis of a towing vehicle. The subframe structure includes pivotally mounted strut members for load distribution within the subframe. The load which is distributed by the strut members tends to counteract the bending and torsion forces imposed upon the subframe structure by the towed vehicle on the rear wheel lift.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: May 29, 1990
    Assignee: Chevron, Inc.
    Inventor: Ronald R. Nespor
  • Patent number: 4875811
    Abstract: An apparatus and method for transporting and unloading a container (10, 10A) carrying particulate lading which is removably mounted on a tiltable support frame (76, 76A) pivotally mounted on a highway trailer (54, 54A). At the unloading site, a portable throttle valve assembly (108, 108A) and flexible connecting hose (166, 166A) are connected to the container (10, 10A) and the container (10, 10A) is tilted by the support frame (76, 76A) to an angle above the angle of repose of the lading for gravity unloading of the lading from the container (10, 10A) in to a trailer mounted rotary valve (148, 148A) which forms an air lock over a subjacent pneumatic hopper structure (144, 144A) for pneumatic conveyance of the lading to a storage facility.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: October 24, 1989
    Assignee: Intermodal Container Systems
    Inventors: Ronald G. Merrett, Oscar Eakin, Jr.
  • Patent number: 4704062
    Abstract: A trailer of the container roll-on, roll-off type having a self contained power plant thereby being capable of full operation for loading and unloading regardless of the type of towing vehicle or in the absence thereof. The device is multifarious in uses, in that amoung other capabilities, it may be used as an ordinary flat bed trailer when not in use as a tilting roll-on, roll-off trailer. The device is capable of production in a multitude of sizes making it adaptable to a wide range of needs and uses within the financial means of many who previously have been excluded from ownership of such a vehicle.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: November 3, 1987
    Inventor: Isom H. Hale
  • Patent number: 4623197
    Abstract: A sloped floor trailer which incorporates drain ports which are opened during trailer loading and which are sealed during trailer transportation, in order to retain the liquid. In addition to the foregoing features, I provide apparatus for heating the trailer side walls with the truck tractor exhaust to prevent freezing during inclement weather.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: November 18, 1986
    Assignee: Florig Equipment Company, Inc.
    Inventor: Eugene F. Stluka
  • Patent number: 4616879
    Abstract: A dump trailer having a chassis with ground engaging wheels under one end, a heavy duty hoist on the other end and a dump body pivoted to the chassis at the wheel supported end and adapted to be elevated by the heavy duty hoist incorporates a floor structure in the body including longitudinal and transverse frame members and provides resilient cushions on each of the transverse frame members of the body where they rest on the chassis when the body is in normal transport position.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: October 14, 1986
    Inventor: Howard Booher
  • Patent number: 4572579
    Abstract: A dump apparatus comprising a base frame removably mounted on a rear body of a truck etc., a loading box rotatably mounted on the base plate, an inflatable bag provided between the loading box and the base plate and a hose for feeding exhaust gas from an engine into the bag to inflate the same and tip the loading box by the inflation of the bag.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: February 25, 1986
    Inventor: Ken Saito
  • Patent number: 4412699
    Abstract: A modular frame for width-adjustable tipping bodies for dump trucks, comprising a pair of cross members, having at their ends the peripheral tipping joints of the body, and a pair of parallel side members, symmetrical in respect of the longitudinal axis of the vehicle, connected with said cross members, and the base of the telescopic jack, and being provided with means for the adjustment of the center distance of said side members to the transverse dimensions of the original frame of the vehicle.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: November 1, 1983
    Assignee: Officine Romanazzi S.p.A.
    Inventor: Luigi Peruzzi
  • Patent number: 4392688
    Abstract: A trailer is provided in the form of a container having side walls (20, 21, 22) and a movable base (23) which can be raised and lowered within the side walls under control of a ram (25). Thus the height of the base can be adjusted as a crop or product begins to fill the space available above the base in a raised position and by this means the extent of drop of the crop or product into the container can be made as small as possible so that the possibility of damage is significantly reduced. The base can be supported by scissor arms (27, 28) and can also be locked in the lower position to the container walls so that when the ram (25) is operated the walls and base will be tilted together about a pivot (32) for unloading.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: July 12, 1983
    Inventor: James A. E. S. McIntyre
  • Patent number: 4384816
    Abstract: In a dump truck, the most efficient way of raising the container body is to apply a lifting force to the end of the body remote from the pivot point. In some applications it is difficult to do so because of height restrictions and it is particularly difficult to do so in a telescoping container body in which the end of the container body which is remote from the pivot point moves in relation to the pivot point. The present invention overcomes this difficulty by mounting the extensible ram in a position remote from its upright position and providing a mechanism for pivoting it to its required upright position prior to its operation as a hoist. In a telescopic container body, the extensible ram is normally stored in freeboard space disposed below the front section of the container body and is raised into an upright position at the front end of the telescoped body in response to movement of the front section from its extended position to its retracted position.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: May 24, 1983
    Assignee: Diesel Equipment Limited
    Inventors: John C. Martin, William C. McKee
  • Patent number: 4327455
    Abstract: A surface cleaning machine and particularly a riding power sweeper is provided. The sweeper has a main rotary broom and an adjacent hopper with an inlet opening for receiving dirt and debris swept from the surface by the broom. The hopper has an outlet opening spaced from the inlet opening through which dirt and debris are emptied from the hopper, and a dumping door is located adjacent the outlet opening for opening and closing the outlet opening. The dumping mechanism for the hopper includes a single drive unit which is connected to the hopper and to the dumping door. When the hopper is to be dumped, the drive unit is operated to first open the dumping door to a position against a stop. After the door contacts the stop, continued operation of the drive unit moves the hopper to a tilted dumping position in which the dirt and debris are emptied through the open outlet opening.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: May 4, 1982
    Assignee: The Scott & Fetzer Company
    Inventor: Jack L. Burgoon
  • Patent number: 4326749
    Abstract: A coupling for use in a vehicle having an extensible and retractable ram reacting between the vehicle frame and a rockable dump body for raising and lowering the latter comprises a pair of parallel links straddling the ram and being pivoted at corresponding ends to the body and at their opposite ends to the ram. The pivotal connection of the links to the body preferably is of the ball joint type to enable substantially universal movement of the links relative to the ram. The coupling enables limited relative movement between the body and the vehicle frame without necessitating extension and retraction of the ram.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: April 27, 1982
    Assignee: Bender's Sales & Service, Inc.
    Inventor: Fredrick L. Bender
  • Patent number: 4289353
    Abstract: A vehicle is shown having a hopper mounted thereon capable of dumping materials contained within the hopper over the end of the hopper or through the bottom of the hopper. Dumping over the end of the hopper is accomplished by lifting the front end of the hopper and sequentially pivoting the rear end of the hopper upon an initial pivot point and a subsequent pivot point in a manner which minimizes the risk of the vehicle capsizing by maintaining a low center of gravity. Dumping through the bottom of the hopper is accomplished through the use of a clam shell gate covering an opening in the bottom of the hopper. The vehicle may be interchangeably used as a rear dump vehicle or a belly dump vehicle, more safely used upon hazardous terrains, and still carry the maximum load capacity allowed.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: September 15, 1981
    Inventor: Jackie A. Merritt
  • Patent number: 4270786
    Abstract: A dumping wheelbarrow capable of providing a forward tilt to the barrow while maintaining the legs of the wheelbarrow on the ground. The wheelbarrow has a frame which supports the barrow which frame has a wheel and a pair of legs together with a pair of extending handles. The barrow is pivoted at a forward barrow point and is caused to dump by the action of a hydraulic piston affixed at one end to the frame and at the other end to the bottom of the barrow.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: June 2, 1981
    Inventor: McKinley Mattox
  • Patent number: 4207022
    Abstract: A powered vehicle for loading, transporting and unloading heaped materials comprises a chassis having a first fixed part mounted on running gear and a second movable part pivotally mounted on the front of the fixed part which is substantially vertically aligned with the front axis of rotation of the running gear, the front of the movable part projecting beyond the front of the fixed part and having pivotally mounted on it a skip. The skip is moved between loading, transportation and unloading positions by two elements, one of which bears on the fixed and movable chassis parts for pivoting the movable chassis part relative to the fixed chassis part and the other of which bears on the movable chassis part and the skip for pivoting the skip relative to the movable chassis part.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: June 10, 1980
    Assignee: COVEM - Compagnie de Vente d'Engins Mecaniques
    Inventor: Claude Castel
  • Patent number: 4194787
    Abstract: A dump body for handling bulk material in which the tail gate is located inside the body walls sufficiently forward of the rear end to provide a delivery chute. The body is adapted to be mounted with the tail gate essentially over the rear wheels and the discharge chute extending back therefrom. Body configuration may be elliptical or rectangular and the sidewalls continuously diverge from bottom to top. The gate is hinged by overhead relatively close-tolerance bearings and trunnions by which the gate is hung and a space is provided between the gate edge and body wall even when fully closed, the space being filled with a flexible seal mounted on the gate perimeter. Specially shaped stops are located on the inner sidewall against which the gate butts on closing. A remotely actuated latch mounted on the body extends through the body wall extension to engage and lock the gate.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: March 25, 1980
    Assignee: Williamsen Truck Equipment Corporation
    Inventor: Leland C. Williamsen
  • Patent number: 4129333
    Abstract: A tip-up trailer with a hydraulically operated tipping body having a device for preventing the tipping body sticking up in the raised position. This is done by providing a back pressure to bear on the piston of a hydraulically operated ram to assist in the commencement of the lowering operation. Preferably this back pressure is provided in the ram which raises and lowers the tipping body.
    Type: Grant
    Filed: January 20, 1976
    Date of Patent: December 12, 1978
    Inventor: Archibald W. Kidd
  • Patent number: 4126357
    Abstract: The invention provides a unitary tilting container assembly of the portable type adapted to be mounted and demounted on a truck, which includes, in combination, a T-shaped bracing structure adapted to be bolted to the truck, there being hinged, at a first pivot axis, to the bar of the T a box-like load bearing tilting container. There is a hydraulic ram pivotally connected on the one hand, at a second pivot axis, to the end of the leg of the T-shaped bracing structure and, at a third pivot axis, to a trunnion carried on the underside of the container. The ram is extensible and pivotal about the second pivot axis from a closed position in which the floor of the container is alongside and substantially parallel to the leg of the T-shaped bracing structure to an open position of the ram in which the floor of the container is inclined to the leg of the T-shaped bracing structure by an angle of at least 25.degree.. All said first, second and third pivot axes are substantially parallel to one another.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 21, 1978
    Assignee: Gowing Engineering Limited
    Inventor: Edward J. Day
  • Patent number: 4111485
    Abstract: A dump truck having a telescoping container body which is initially telescoped to a reduced length to discharge a portion of the load therefrom in response to the telescoping action and thereafter elevated to discharge the remainder of the load in the manner of a conventional dump truck. The fully extended length of the container body, which determines the load carrying capacity of the container body, is greater than that which would normally be elevated to directly discharge the load therefrom in the manner of a conventional dump truck. The retracted length of the container body is no greater than the acceptable length of a container body for elevating to dump a load in a conventional manner.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: September 5, 1978
    Assignee: Diesel Equipment Limited
    Inventors: John C. Martin, Paul H. Martin
  • Patent number: 4058343
    Abstract: A concrete transporting and placing vehicle wherein the frame of the material receiving body is slidably seated on a sub-frame that is fixed to the chassis of a truck, for movement by a hydraulic cylinder, about a fixed vertical axis, either to the left or the right, from a centered transport position aligned with the truck chassis to a diagonal discharge position in which the material discharge mouth at the rear of the body is at one side or the other of the vehicle; depending upon whether the body frame was shifted to the left or the right; and wherein upon return of the body frame to its transport position, a locking pin automatically engages to releasably hold the body frame in its transport position, the locking pin being automatically retracted to release the body frame for movement from its transport position, concomitantly with pressurization of the cylinder to effect such movement.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: November 15, 1977
    Assignee: Maxon Industries, Inc.
    Inventor: Glenway W. Maxon, III