Having One Or More Axes Of Pivotable Movement Patents (Class 414/637)
  • Patent number: 8167528
    Abstract: A lift that is configured to securely lift, carry and deposit a control unit using three degrees of movement. The lift comprises a chassis having a support frame and a power source connected to the support frame. A pivot member rotatably connects to the support frame, wherein the pivot member has a pivot plate and a rod rotatably connected to the pivot plate. A lift frame connects to the rod of the pivot plate, wherein a lift arm rotatably connects to the lift frame. The lift further comprises a pressurized fluid drive operatively connected to the power source and operatively connected to the pivot plate, the lift frame and the lift arm. The fluid drive is configured to reciprocally move the pivot plate, the lift frame and the lift arm such that the lift arm moves in three degrees of movement with respect to the chassis.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 1, 2012
    Inventors: Ronald A. Keeven, Michael A. Keeven, Laurence A. Keeven
  • Patent number: 7841822
    Abstract: A manipulator for use with a lift truck includes a guide assembly mountable on a mast of a lift truck, a carriage assembly supported for movement along the guide assembly, and an arm assembly mounted on the carriage assembly for supporting a lift truck attachment such as a clamping apparatus. The arm assembly may include two arms pivotable with respect to each other about a substantially vertical axis. The manipulator can move a load in a widthwise direction of a lift truck and between opposite widthwise sides of a lift truck.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: November 30, 2010
    Assignee: Tygard Machine & Manufacturing Company
    Inventor: Edward Tygard
  • Patent number: 7377739
    Abstract: A jig assembly which includes a universal joint to enable three-dimensional movement of a workpiece or handling device attached thereto. The assembly is particularly useful for enabling translation and rotational movement of heavy machinery and components for servicing and maintenance. The jig assembly may comprise one or more ball joints which may be moved by actuators such as hydraulic cylinder. The assembly may be provided on its own movable frame, or it may be attached to a front end of a loader.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 27, 2008
    Assignee: Justoy Pty Ltd.
    Inventors: Robert Ian Hedley, Scott Andrew Johnson
  • Patent number: 5599155
    Abstract: An attachment for industrial trucks, especially lift trucks, is designed as a multi-articulated lever mechanism (11), preferably as a three-hinge arm. This is articulated to a support plate (1), which can be locked and/or fixed in a bracket of the industrial truck. The lever arms (5, 6, 7) of the lever mechanism (11) are rotatable in relation to one another in articulated axles (3, 8, 10), and can be driven, individually and/or in a simultaneous movement, at least in the horizontal direction by mechanical, hydraulic and/or electrical devices. A load pickup device (12), which can be used preferably as a pivoting retractable fork, is arranged at the last, freely hanging lever arm (7). At least one of the lever arms (5 or 6 or 7) is adjustable in height along its articulated axle (3 or 8 or 10).
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: February 4, 1997
    Assignee: Wagner Fordertechnik GmbH
    Inventors: Volker Rohm, Gerard Vesin, Ulrich Freundt
  • Patent number: 5328321
    Abstract: A three-stage mast (1) for a forklift truck and a forklift truck incorporating the mast (1). The mast (1) has an outer mast section (2) for mounting on the truck. A middle mast section (5) is slidably movable on the outer mast section (2) by rams (7). An inner mast section (12) is slidably mounted on the middle mast section (5) and carries a fork carriage (14). Lifting chains (20) and lowering chains (30) extend between the inner mast section (12) and outer mast section (2) passing over intermediate guides (24, 31) on the middle mast section (5). The chains (20, 30) raise and lower the inner mast section (12) on the middle mast section (5) when the rams (7) are operated. Similarly lifting chains (26) and lowering chains (34) extend between the middle mast section (5) and the fork carriage (14) via guides (27, 35) on the inner mast section (12) for movement of the fork carriage (14) on the inner mast section (12).
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: July 12, 1994
    Assignee: Moffett Research and Development Limited
    Inventors: Carol Moffett, James McAdam
  • Patent number: 4708577
    Abstract: A fork lift truck includes a mast support bar to which the mast supporting carriage and fork lift tines are mounted. The mast support bar includes a central arc-shape segment on which a concentric arc-shape mast support sleeve is slidably mounted. The mast is mounted to the sleeve and power means are provided to slide the sleeve in either direction on the mast support bar. When the fork lift truck encounters uneven ground so that the wheels on one side of the truck are higher than the wheels on the other, the operator will slide the mast support sleeve with respect to the mast support bar to keep the mast in a vertical position over the truck.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: November 24, 1987
    Inventor: Mark E. Fratzke