Two Wheel, Manually Propelled Vehicle Pivotable About Axis Of Wheels (e.g., Hand Truck, Etc.) And Provided With Attendant-operated, Load-handling Means Patents (Class 414/490)
  • Patent number: 5749587
    Abstract: A hand truck for easy removal of carried objects. A hand truck has a frame with a front face and a rear face and an upper end for handling and lower ends positionable near the ground. Also provided are a pair of supports having upper ends secured to the rear face of the frame adjacent to upper regions thereof and having lower ends secured to the rear face of the frame adjacent to lower regions thereof. Support brackets are located on each side of the frame coupling the lower portions of the frame to the central regions of the supports. A pair of wheels are rotatably supported about horizontal axes secured to the supports near lower regions thereof. A retainer has an elongated generally horizontal portion and a generally vertical portion secured to the front face of the frame adjacent to the lower ends thereof.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: May 12, 1998
    Inventor: Jose Colon
  • Patent number: 5738480
    Abstract: A hand truck or dolly is shown which includes a frame pivotable on a pair of wheels. The frame includes a foot plate and a slidable bracket on which a heavy item to be carried can be mounted. The support can be raised by a screw operated by a hand crank or power-assisted elevator, while one end of the screw is fastened to the foot plate.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: April 14, 1998
    Inventor: Michael J. Butzen
  • Patent number: 5718440
    Abstract: A pipe vice transportation dolly having a one-piece faceplate which is rigid and stable, and primary and secondary support arms to sustain the pipe vice while providing stability and balance as well. Two wheels protrude from either side and enable it to move the pipe vice about. A face plate is generally triangular and is situated between the wheels with the main support arm centered in the peak of the triangle, and two protruding pipes, secondary support arms, on each end of the plate which attach to the pipe vice. A rectangular handle is situated on top and center of the faceplate.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: February 17, 1998
    Inventor: Steven Carl Roxbury
  • Patent number: 5716183
    Abstract: A hand truck for moving objects from one location to another is disclosed as including a frame extending longitudinally from a foot end to a handle end, the frame including a first elongated member, a second elongated member spaced from the first elongated member, and a cross member extending between and fixed to the first and second elongated members. The hand truck also includes at least one ground engaging wheel rotatably mounted to the frame for rotation about a wheel axis adjacent the foot end thereof. A first arm slidingly connected to the first elongated member, wherein the first arm extends substantially perpendicular to the first elongated member, and a second arm slidingly connected to the second elongated member, wherein the second arm extends substantially perpendicular to the second elongated member are provided, as is a brace member slidingly connected to the frame.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: February 10, 1998
    Inventors: Joseph A. Gibson, James E. McNamara
  • Patent number: 5716061
    Abstract: A dolly for moving a snowmobile on a supporting surface such as a garage floor, ground, etc., wherein the dolly may be positioned beneath the snowmobile from the forward portion of the snowmobile. The dolly has a jack associated therewith which may be operated to raise the track portion of the snowmobile from the ground. The forward end of the dolly may then be moved upwardly so that the skis of the snowmobile are also moved out of engagement with the supporting surface. The snowmobile may then be conveniently moved from one location to another.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: February 10, 1998
    Assignee: Cycle Country Accessories Corp.
    Inventors: Ken Sloan, Gary Cross, Jim Danbom, Jan Danbom, Terry Semprini, Scott Danbom, Ron Hickman, Earl Ballou, Jeff Wobbema, Joseph Feuerhelm, Roland Taylor
  • Patent number: 5709397
    Abstract: A dolly with a U-shaped frame which is adjustable both in length and width, has a pair of wheels and a pair of brackets on the ends of the U-shaped frame. A heavy object to be moved includes two transverse members extending between opposite legs. At least one of the transverse members has retractable arms. The heavy object is first lifted at one end by the brackets beneath one transverse member then the retractable arms are extended and the other end of the heavy object is lifted onto the pair of wheels. A removable set of auxiliary wheels assists in transporting the object to a new location.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: January 20, 1998
    Inventor: John R. Hall
  • Patent number: 5707200
    Abstract: A four wheel hand truck with elevator in which one pair of wheels are stationary as in a typical hand truck and the other pair of wheels are slidable upon vertical shafts and powered by a cable and winch assembly. A person can place the slidable pair of wheels on the outward edge of a pick-up truck bed and lower the entire hand truck and associated load to the ground or vice versa.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: January 13, 1998
    Inventor: Jimmy Liu
  • Patent number: 5647720
    Abstract: A hand cart for carrying sheets and other stacked objects has a motorized self-leveling platform, so the things being carried are kept at a constant elevation convenient to a worker, whether things are being added or removed from the platform. For carrying sheets, such as moving sheets of paper in document processing operations, the cart upright and platform are tilted, and the upright has opposing wings extending at 90 degree. Thus, sheets tend to move against the wings and their alignment is either obtained or maintained. When the cart is tilted to move it about, the cart design and load positioning system desirably keep the upward force which a worker must apply to the cart handle at low levels.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: July 15, 1997
    Assignee: Documotion, Inc.
    Inventors: Stefan G. Golicz, Roman M. Golicz
  • Patent number: 5632592
    Abstract: A latch assembly mounted on a two-wheeled hand truck having vertically extending wings mounted on the hand truck frame side rails to pivot about axes extending generally parallel to said side rails from an operative position in which they extend laterally as substantially extensions of said side rails to a folded inoperative inboard transport position in which they lie inboard of the laterally inboard sides of said rails. The latch assembly is mounted on the frame for movement in a lateral path from a first position in which the latch assembly blocks movement of the wings to a laterally displaced second position in which the wings are freed to travel.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: May 27, 1997
    Assignee: Magline, Inc.
    Inventor: Joseph D. Krawczyk
  • Patent number: 5624224
    Abstract: A hand truck unloading apparatus for use with two wheel hand trucks having a cargo platform at the lower end portion, the cargo being unloaded by unidirectional forward displacement of an unloading device without manual contact of the operator with the load.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: April 29, 1997
    Inventor: Thomas L. Brandenburg
  • Patent number: 5599156
    Abstract: An unloading shoe subassembly for use in combination with a hand truck includes a pair of sideframe members and a handle extending between and connecting the sideframe members. A pair of wheeled track assemblies are adapted to be mounted on the frame such that each sideframe member is adjacent one of the wheeled track assemblies and the wheeled track assemblies are generally parallel with one another and generally perpendicular to the load-carrying platform. Each of the wheeled track assemblies includes upper, middle and lower wheel tracks mounted on a support plate in generally coplanar relation with each other. Wheels are slidably mounted within each of the wheel tracks. A shoe assembly including an unloading shoe and at least one shoe support strut is provided, the unloading shoe mounted on the lower end of the strut.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: February 4, 1997
    Inventors: Arnold B. Layne, Ella L. Layne
  • Patent number: 5593271
    Abstract: A ground-loading conveyance for refuse or heavy objects. The frame is tipped with the handle to allow a two wheel carriage on pivoting support legs to swing beneath the frame, so as to support the load for transporting.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: January 14, 1997
    Inventor: John R. Hall
  • Patent number: 5575605
    Abstract: A collapsible, wheeled shopping cart having a horizontal shelf which is vertically movable for easy loading and/or unloading, and having a surrounding skirt that is hinged so as to be collapsible when not in use. The movable shelf may be automatic and movable upwardly when the load on the shelf is decreased or is selectively movable upwardly by a hand crank of a threaded jack or by a piston and cylinder assembly powered by a source of compressed fluid.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: November 19, 1996
    Inventor: Herbert H. Fisher
  • Patent number: 5538390
    Abstract: A load lock interface for a semiconductor wafer process chamber includes a platform adapted to receive and engage with a carrier containing a cassette of semiconductor wafers; and a removable bell-shaped enclosure adapted to surround and seal said carrier from the ambient environment while the carrier is engaged with the load lock interface platform. Once engaged with the carrier, the platform is operable to withdraw the cassette of wafers from the carrier and position the cassette within a load lock. Thereafter, the cassette may be indexed and individual wafers may be removed from the cassette for processing within the process chamber.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: July 23, 1996
    Assignee: Applied Materials, Inc.
    Inventor: Philip M. Salzman
  • Patent number: 5518356
    Abstract: A latch assembly mounted on a two-wheeled hand truck having vertically extending wings mounted on the hand truck frame side rails to pivot about axes extending generally parallel to said side rails from an operative position in which they extend laterally as substantially extensions of said side rails to a folded inoperative inboard transport position in which they lie inboard of the laterally inboard sides of said rails. The latch assembly is mounted on the frame for movement in a lateral path from a first position in which the latch assembly blocks movement of the wings to a laterally displaced second position in which the wings are freed to travel.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: May 21, 1996
    Assignee: Magline, Inc.
    Inventor: Joseph D. Krawczyk
  • Patent number: 5513939
    Abstract: This invention discloses a two-wheeled device that can roll over and straddle three sizes of tanks, extend the adjustable feet to a lift position, raise the back end of the tank, connect a chain and hook to the front end of the tank, lift both front and back tank legs off the ground, and roll the tank over the ground or floor. The handle length is adjustable to accommodate three different tank lengths and the chain and hook can also adjust horizontally to accommodate these three lengths. The feet are also retractable to permit rolling the device past the two front legs on the tank.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: May 7, 1996
    Assignee: L.P. Tank Troll, Inc.
    Inventors: Wesley D. Martin, Lynn A. Adams
  • Patent number: 5489183
    Abstract: In order to facilitate the weighing of large compressed gas cylinders, a hand truck which is used to move the cylinders to a set of scales is provided with a hydraulic or mechanical servo which allows the cylinder to be elevated while it is on the hand truck to a height suitable for off-loading into the scales platform.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: February 6, 1996
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Lavern E. Malden, Robert R. Sanchez, Manuel R. Cisneros, Jr.
  • Patent number: 5468010
    Abstract: A hand truck apparatus includes a frame assembly, and a wheel assembly is carried by the frame assembly at the first end of the frame assembly. A platform assembly is connected to the first end of the frame assembly. A handle assembly is connected to the frame assembly at the second end of the frame assembly, and a plurality of roller assemblies are connected transversely between the lateral frame members. An extension assembly has a first end adapted to be connected to the second end of the frame assembly. The extension assembly includes a pair of lateral extension frame members spaced apart from each other by and connected to a pair of transverse extension frame members located at respective ends of the extension assembly. The extension assembly also includes a plurality of roller assemblies connected transversely between the lateral extension frame members.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: November 21, 1995
    Inventor: Marion K. Johnson
  • Patent number: 5464315
    Abstract: A dolly which may be used in pairs to clampingly engage respective ends of heavy elongate objects followed by upward movement of one frame relative to another to lift the object so that it may be easily and safely transported.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: November 7, 1995
    Assignee: Dawson Metal Company, Inc.
    Inventors: Arthur V. Palmer, Gary Leonard
  • Patent number: 5443349
    Abstract: A manually operated hand truck with an improved unloading lever having a forward lever section, a transverse push plate rigidly mounted on the forward lever section, a foot-actuated pedal portion opposite the forward end lever section, a middle section joining the forward lever section and foot-actuated pedal portion, a tube attached to the middle section at its junction with the forward lever section and foot-actuated pedal portion, whereby the forward lever section and carried transverse push plate is moved forwardly and upwardly upon actuation of the pedal portion to discharge the load.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: August 22, 1995
    Inventor: Maheshkumar M. Mehta
  • Patent number: 5429472
    Abstract: A mechanism for lifting and hauling of a container or the like onto or from a ramp, a tipping body of a lorry and to or from a location which is not easily accessible for heavy haulage vehicles and/or heavy lifting gear includes a hauling arm secured intermediate first and second ends of a shaft and levering arms also attached to the shaft. The shaft is pivotably connected to locking elements adapted to be secured to lower corners of the container at one end thereof. With this arrangement, when the locking elements are secured to the container and the hauling arm is manipulated in order to rotate the shaft relative to the locking elements, the levering arms engage a supporting surface for the container and continued rotation of the shaft causes at least a portion of the container to be lifted from the supporting surface for hauling of the container.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: July 4, 1995
    Inventor: Harald Dahl
  • Patent number: 5405235
    Abstract: A barrel grasping device with upper and lower jaws pivoted to a double yoke surrounding the pole of a barrel trolley. An auxiliary yoke imprisoning a clamping plate is slidingly mounted on the pole above a double yoke and is connected to the latter by a compression spring. A connecting rod is pivoted at one end to the double yoke and at its intermediate portion to a lever having one extremity pivoted to the auxiliary yoke around an off-set axis and engaging a clamping plate. The weight of the barrel transmitted by the jaws to the double yoke automatically pulls the connecting rod, causing the lever to pivot and push the clamping plate against the pole, thus clamping the device along the pole of the barrel trolley.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: April 11, 1995
    Inventors: Charles J. P. Lebre, Chrisotphe Lebre
  • Patent number: 5306112
    Abstract: A loading dock-aid is described that facilitates the lifting and placing of heavy dock plates between the edge of a dock and the back end of a delivery truck. The dock-aid has a lifting boom with a hooked end portion that is inserted into prescribed holes in the dock plate and that is connected via a yoke framework to a roller and an extended handle. The handle provides leverage for a workman to exert pressure thereon and lift up the dock plate. The roller allows the workman to position the whole apparatus in a specific location to then lower the dock plate over the gap between the truck and the dock.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: April 26, 1994
    Inventor: Thomas P. Kielinski
  • Patent number: 5294145
    Abstract: A handcart includes a pair of wheels mounted on an axle, a pair of lower tubes mounted on the axle, a pair of upper tubes telescopically received in the pair of lower tubes, and a holding assembly mounted on the pair of lower tubes to hold a baggage container. The holding assembly includes a lower holding member mounted to a lower portion of the pair of lower tubes, a sleeve mounted to a mediate portion of the pair of lower tubes and slidable along the lower tubes, an upper holding member extending from the sleeve for holding the baggage container between the lower and upper holding members, a handle extending upward from the upper holding member and having an elongate hole extending vertically, a stop member mounted to an upper portion of the pair of lower tubes and having a pin extending outward into the elongate hole, and a spring mounted around each of the lower tubes between the stop member and the sleeve.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: March 15, 1994
    Inventor: Shu-Yen Cheng
  • Patent number: 5290051
    Abstract: A load-unloading subassembly for use with a wheeled handtruck characterized by a pivotal and slidable connection between the sideframe elements of the load-unloading frame and the corresponding upright elements of the handtruck frame which connections cooperate with a scissor link pivotally interconnecting the two to cause a push-off shoe at the lower end of the load-unloading subframe to move substantially horizontally across the load-carrying platform of the handtruck to separate a load therefrom when the subassembly frame is rotated.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: March 1, 1994
    Inventor: Harlan F. Olson
  • Patent number: 5257892
    Abstract: A pipe machine dolly/cart combination is designed with spaced-apart wheels at both ends of a load carrying platform. Removable handles are provided to permit the dolly/cart combination to be manipulated from both ends to be rolled about on a surface, and to be pivoted about the wheels on either end. With the handles attached to one end, the dolly/cart may be manipulated by a single person to permit the loading and unloading of the cart to and from a raised surface, such as the bed of a truck. When the removable handles are secured to the other end, the device may be used as a dolly to transport the load, and to deposit the load on a surface when the device is pivoted 90.degree. . The device is ideally suited for facilitating the loading and unloading and transportation, by a single person, of a relatively heavy load, such as a pipe threading machine, or the like.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: November 2, 1993
    Inventor: David Branch
  • Patent number: 5256025
    Abstract: An improved handtruck having an unloader mechanism for assisting in the removal of cargo from the handtruck. The unloader mechanism utilizes a cargo support pivotally mounted at the lower end of the handtruck. The cargo support is designed so that it can be maintained in a latched position when transporting cargo and can be unlatched to pivot away from the handtruck when unloading cargo. A pusher structure may be operatively connected to said cargo support to facilitate the removal of cargo from said cargo support. The pivot action of the cargo support causes a force to be exerted on the cargo by the pusher structure which urges such cargo down an inclined plane formed by the cargo support, thereby removing the cargo from the handtruck.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: October 26, 1993
    Inventor: Gary Williamson
  • Patent number: 5251922
    Abstract: A hand truck which includes an automatically adjustable toe plate. The toe plate is attached to the frame of the hand truck in a slidable manner by means of a coil spring. A load placed on the toe plate causes it to move downwardly a predetermined distance. The coil spring may be sized for a particular use depending on the bulk and weight of objects placed thereon such that a predetermined object placed on the toe plate will cause its movement downwardly a predetermined distance in order that the top of any object or stack of objects located on the hand truck is at a level above the ground which is convenient for an operator thereof to load and unload the hand truck without the necessity of bending in order to place objects onto or remove them from the hand truck.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: October 12, 1993
    Inventor: Larry D. Mann
  • Patent number: 5249908
    Abstract: The present disclosure is related to a movable pallet assembly with a swivel front wheel mechanism, and particularly to the type of pallet two of which can be bound together by C-shaped fixture clamps and be separated from the ground by supporting legs when used as a base in a warehouse, and be moved around as a transportation cart when the legs are lifted up. The swivel front wheel mechanism can be removably attached to the pallet, and an angle-adjustable pull stick is pivotably fixed to the swivel front wheel mount with an adjustable connecting rod pivotably secured to a slidable push block. By operation of the pull stick, the push block will be moved forward to lift the pallet assembly up or backward to lower the pallet assembly down with the supporting legs in contact with the ground.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: October 5, 1993
    Inventor: Chin-Chin Tsai
  • Patent number: 5244221
    Abstract: A multi-use hand truck or dolly apparatus and more particularly, a hand truck useable in the commercial building construction industry. It is capable of being used in both a vertical mode as well as a horizontal mode. When used in its vertical mode, it is capable of carrying up to five doors or other large objects. When used in its horizontal mode, it serves as a sturdy planar work support surface and permits a workman to perform required tasks thereon. Additonally, the apparatus can be joined with another like apparatus and present a much larger horizontal planar work surface. The apparatus includes telescopic frame members which permit accommodation of various length loads. Further, a plurality of swivel casters are provided which allow full rotational movement of the apparatus when used in its horizontal mode.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: September 14, 1993
    Inventor: John S. Ward
  • Patent number: 5233708
    Abstract: A mobile patient lift and transport apparatus for lifting and moving an incapacitated or partially incapacitated person from one location to another in a substantially forwardly leaning and supported position. The apparatus is provided with an elongate frame which pivots about the single rotational axis defined by the wheels thereof in order to facilitate lifting and transportation. Foot rest means, leg support means, and a vertically elevated trunk support means are provided to support the weight of the person being carried in the forwardly leaning position with his center of gravity positioned substantially over the rotational axis of the wheels. The apparatus also includes a support stand pivotably mounted to the frame and movable from a normally inoperative position adjacent the frame to an operative position depending downwardly from the frame.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: August 10, 1993
    Assignee: Cindylift Products, Inc.
    Inventor: Alexander G. Winston, Sr.
  • Patent number: 5195762
    Abstract: A novel hand truck lift is provided comprising an elevating assembly which is extendable downwardly to easily enable the hand truck lift to be used to move objects supported thereon up and down stairs.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: March 23, 1993
    Inventor: William B. S. Pressly
  • Patent number: 5190304
    Abstract: A back saver hand truck is provided which consists of an elongated upstanding frame having a handle portion. A pair of ground engaging wheels are attached to the bottom of the frame. A platform is for supporting a load thereon. The platform transversely extends outwardly at one end from the frame. A mechanism for lifting said platform upwardly and lowering it downwardly in a longitudinal direction along the frame, so that a person does not have to bend down to remove the load from the platform, when the platform is lifted upwardly.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: March 2, 1993
    Inventors: Dee Prentiss, George Spector
  • Patent number: 5158032
    Abstract: A dock dolly comprising a frame having a handle, a lifting plate and an axle mounted on the frame between the handle and the lifting plate; at least one molded, hollow, thermoplastic wheel having a diameter to width ratio of approximately less than 2 mounted on the axle; a winch having a line mounted on the frame between the axle and the handle; a top line roller mounted on the handle; and a bottom line roller mounted on the axle.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: October 27, 1992
    Inventor: Nigel A. Pitt
  • Patent number: 5141240
    Abstract: A wheeled vehicle includes a lifting device for lifting the vehicle over a step to be traversed. The lifting device includes a carriage mounted on the vehicle frame for vertical movement with respect thereto, lifting arms carried by the carriage and engageable with the step to be traversed, and a force-multiplying block and tackle assembly carried by the frame and coupled to the carriage for moving the carriage downwardly relative to the frame while the lifting arms engage the top of the step to be traversed to thereby lift the frame over the step.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: August 25, 1992
    Inventor: Nahum Heilig
  • Patent number: 5122027
    Abstract: A carrier comprising a lift bar provided on the body of the carrier and movable upward and downward, a connecting member pivotably connected between an upwardly driving cylinder device and the lift bar, an upper claw provided on the connecting member, and a lower claw provided on the lift bar and cooperative with the upper claw for holding the upper rim of a container. The load of the container acting on the lower claw pulls down the upper claw for the two claws to clamp the container upper rim to transport the container as lifted.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: June 16, 1992
    Assignee: Osaka Taiyu Co., Ltd.
    Inventor: Yoshikazu Tabayashi
  • Patent number: 5120183
    Abstract: A load transporting dolly includes a frame having a flange on a lower end thereof to be positioned above an upstanding wall of a tray containing a load and a foot positioned in spaced relation with the flange for engaging the load when the flange is placed above the side wall. Spaced, parallel legs joined to opposing lateral ends of the flange extend upwardly therefrom, and arms for positioning and holding the load upon the frame are mounted, respectively, on the legs for selective rotation around a first axis and selective sliding movement along the first axis to extend along lateral sides of the load perpendicular with the foot. The arms are rotatable around a second axis perpendicular with the first axis and are slidable along the second axis to selectively position gripping fingers in the arms and planes containing the arms to permit the gripping fingers to be placed in a clearance adjacent lateral sides of the load and positioned to extend along a back of the load.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: June 9, 1992
    Inventor: Mark D. Phillips
  • Patent number: 5093944
    Abstract: A mobile patient lift and transport apparatus for lifting and moving an incapacitated or partially incapacitated person from one location to another in a substantially forwardly leaning and supported position. The apparatus is provided with an elongate frame which pivots about the single rotational axis defined by the wheels thereof in order to facilitate lifting and transportation. Foot rest means, leg support means, and a vertically elevated trunk support means are provided to support the weight of the person being carried in the forwardly leaning position with his center of gravity positioned substantially over the rotational axis of the wheels.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: March 10, 1992
    Assignee: Cindylift Products, Inc.
    Inventor: Alexander G. Winston, Sr.
  • Patent number: 5070678
    Abstract: An upright frame member has an upper handle and bottom support wheels. A forwardly projecting boom is secured to the upright frame and is of a length at least as long as tree branches of a tree to be mounted on the cart. A clamp is carried on the forward end of the boom capable of removably clamping a tree at the lower end of the trunk to the boom and supporting the tree on the cart in parallel relation with the upright frame. The upright frame and the boom are disposed relative to each other such that when the cart is laid down rearwardly the center of gravity of the cart and tree is offcenter toward the handle whereby the cart will rest unsupported in such laid down position and suspend the tree horizontally for bagging. A hook is provided on the upright frame for holding a bag in telescoped relation on the boom prior to use. In the method of bagging a tree, an open ended bag is first pulled in telescoping relation over the boom and attached to the hook on the upright frame.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: December 10, 1991
    Inventor: Paul M. Morrill
  • Patent number: 5017080
    Abstract: A hand truck for lifting and transporting objects. The truck includes an elongated frame attached to a wheel assembly. A carriage is mounted on the frame to travel the length of the frame. The carriage includes a load bed that extends across the frame, and at least one protrusion located below the load bed that extends above the load bed. A seizing arm is pivotally attached to the carriage above the load body and has a seizing arm with a grip point directed toward the load body. The seizing arm has a stem that extends beyond the pivot point attachment opposite the seizing arm body. A winch with cable are attached to the top of the frame. The free end of the cable is attached to the seizing arm stem. Retracting the cable causes the seizing arm to pivot so the grip point is forced against as object located on the carriage. The force of the seizing arm is sufficient to secure the object between the grip point and the carriage.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 21, 1991
    Assignee: Blue Arrown Enterprises, Inc.
    Inventors: Charles E. Thorndike, Vaino J. Holopainen
  • Patent number: 4981412
    Abstract: A modified hand truck with a novel structure that optimizes the cooperation between the carrying platform and the wheels in order to produce the maximum lifting force possible for the operator. The wheels are free to move in relation to the carrying platform, thus tilting of the load to the extent desired is possible before lifting becomes necessary. In addition, because the invention minimizes the impact of the size of the wheels on the lifting action, large wheels are used to improve the rideability and stability of the truck.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: January 1, 1991
    Inventor: Bruce L. Hawkins
  • Patent number: 4944648
    Abstract: A trailer assembly comprises spaced wheels connected by an axle, an elongate tow bar assembly projecting forwardly from the axle, and a load carrying frame pivotally mounted on the axle for movement between an upright, ground position for loading and unloading, a first towing position in which the frame is inclined forwardly, and a second towing position in which the frame is horizontal. First and second latching mechanisms are provided for releasably latching the frame in the first and second towing positions, respectively.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: July 31, 1990
    Inventor: Willard J. Parr
  • Patent number: 4921270
    Abstract: A convertible hand truck including a pivotable handle member which may be stowed or selectively used as an extension of the toe plate when the hand truck is in an upright two-wheeled position, and may serve as the push handle for the hand truck when used in an horizontal four-wheeled position. The pivoting handle member is releasably coupled to the toe plate of the hand truck when in the horizontal position by a bracket which wraps partially around and slides along the handle member and extends between the two opposing upright handle segments. The bracket remains flush with the frame when in the stowed position, and has an offset tang which engages the top edge of the toe plate when the handle member is in the upright and secured position.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: May 1, 1990
    Assignee: Liberty Diversified Industries
    Inventor: Carl J. Schoberg
  • Patent number: 4902187
    Abstract: This invention relates to a drum dolly attachment apparatus having a conventional dolly truck assembly with a drum attachment assembly of this invention connected thereto. The dolly truck assembly includes a main truck frame on a support wheel assembly which is operable to be placed adjacent and under a drum member for connecting thereto. The drum attachment assembly is slidably mounted on an upright vertical handle of the dolly truck assembly and is operable to be placed in contact and grasp a main rim portion of the drum member. The drum attachment assembly is constructed so as to move vertically as required to adjust its position on the main rim portion of the drum member when moved from a vertical to an inclined position. The drum attachment assembly includes a drum connector assembly having a first stationary drum connector connectable to an upper inner portion of the main rim portion and a second actuator drum connector connectable to an outer lower portion of the main rim portion of the drum member.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: February 20, 1990
    Assignee: Harper Truck, Inc.
    Inventor: Kenneth E. Rousseau
  • Patent number: 4893824
    Abstract: A hand truck comprising an upright frame having an upper frame section which is telescopingly attached to a lower frame section to permit the height of the frame to be adjusted and clamped into position. A short toe plate extends forwardly from the bottom of the lower frame section, and is slightly narrower than a standard file cabinet. A pair of wheels are conventionally mounted to the rear of the lower frame section. A retaining arm having a hooked end bracket is pivotally and slidably mounted to a crossbar of the upper frame section, such that the retaining arm may be pivoted in a vertical plane generally perpendicular to a plane defined by the front surface of the lower frame section, and slidingly extended forward and retracted backward relative to the crossbar. A spring-loaded clamp assembly serves for pivoting the retaining arm, and for restraining the arm against sliding movement.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: January 16, 1990
    Assignee: Liberty Diversified Industries
    Inventors: John E. Turek, Carl J. Schoberg
  • Patent number: 4865339
    Abstract: A hand truck includes a carrying device connected to a wheel arrangement for transporting a load on a first support surface. The wheel arrangement is slidably displaceable with respect to the carrying device and can be selectively secured in a locked position when moving the hand truck on the first support surface. The carrying device including the load is transferable to a second elevated support surface when the wheel arrangement is slid toward a handle end of the carrying device. The wheel arrangement may be removed from the carrying device or alternatively pivoted for placement on the second support surface.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: September 12, 1989
    Assignee: Carl Englund
    Inventors: Bo Rundborg, Risto Luoto
  • Patent number: 4793623
    Abstract: A load gripping hand cart includes a wheel supported frame with a projectionless load abutment surface that can be positioned adjacent to one side of an elongated load. Arms are selectively pivoted on the frame by a manually operated actuator mechanism to converge against sides of the load and secure it to the load abutment surface. The actuator mechanism includes self-locking features that facilitate locking of the arms against the load in a closed orientation. The actuator mechanism is situated separate from the handle end of the cart frame so the load can be secured to the cart frame and so the arms can be locked in an operation separate and independent from the lifting and transport operation which is controlled from the handle end of the frame.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: December 27, 1988
    Inventor: Charles Talbot
  • Patent number: 4781391
    Abstract: A carrier for transporting a harp whereby the harp may be rolled in a substantially upright position across a supporting surface and, alternatively, whereby a harp may be transported in a substantially flat, horizontal position. The harp carrier includes specific structure for releasably engaging and retaining the base of the harp as well as adjustable arms for engaging and retaining the top of the harp. Provision is also made for carrying accessories such as music and a bench upon which the harpist may sit.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: November 1, 1988
    Inventor: Rudolph R. Hartwig
  • Patent number: 4752173
    Abstract: A hand truck apparatus configured for transporting, as well as lifting, a load and also configured so that the hand truck apparatus is self-stabilizing under all conditions of use. The hand truck apparatus in accordance with the invention provides mechanical advantage for lifting the load and is configured for precisely lifting the load to a raised position. The hand truck apparatus in accordance with the invention is self-stabilizing when a load is not placed on the hand truck apparatus, as well as when a load is placed on the hand truck apparatus and for any raised position of the load. The hand truck apparatus in accordance with the invention is particularly advantageous when used in connection with transporting and installing solid core doors. Hinge plates are first attached to the edge of the door. The door is then placed on the hand truck apparatus and transported to the location of installation.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: June 21, 1988
    Inventor: Jeffrey B. Fleming
  • Patent number: 4741659
    Abstract: A two-wheeled drum or barrel transporting truck slidably mounts a drum flange or chime clamp which is powered from an energy source on the truck to raise the drum for depositing the same on a pallet or the like. An electric motor driven linear actuator on the truck is energized from a battery also carried on the truck to drive the clamp. A double pole switch on or adjacent the handlebar of the truck controls a circuit to drive the motor in opposite directions. The clamp when raised against the chime ring of a barrel or drum automatically locks the drum to the truck. Rollers on the truck embrace and cradle the drum so that it is easily raised and lowered on the truck.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: May 3, 1988
    Assignee: Liftomatic Material Handling, Inc.
    Inventor: Bruce A. Berg