Patents Represented by Attorney Andrew Ririe
  • Patent number: 8069593
    Abstract: An excavator bucket top assembly can be completed as an assembly before being attached to other components to form an excavator bucket. The top assembly includes a flat bottom plate and a top plate with two bends, each having relatively simple geometry for ease of manufacturing. Two hinge plates penetrate through the top plate and are joined to both the bottom plate and the top plate. The top assembly includes strategically positioned, continuous weld joints to avoid weld starts and stops that create stress risers. The top assembly produces a torque tube which is stiff and resistant to fatigue.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: December 6, 2011
    Assignee: Caterpillar Inc.
    Inventors: Samuel Lucas McClallen, Michael R. Agurkis, Jeremy Dean Folkerts
  • Patent number: 7762015
    Abstract: A ground engaging tool system comprises a ground engaging tool such as a tip, an adapter mounted to or part of a work tool, and a rotating lock member. The ground engaging tool is attached to the adapter, and a post portion of the adapter slides into a slot provided on the lock. The lock is rotated so that the entrance to the slot is blocked and the post cannot slide out of the slot. The lock in this position is in a locking position, and the retention of the post in the slot of the lock retains the ground engaging tool to the adapter.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 27, 2010
    Assignee: Caterpillar Inc
    Inventors: Murray A. Smith, Craig E. Harder
  • Patent number: 7634863
    Abstract: A method is provided for enhancing the repositioning of an excavating machine, including an excavating assemblage, from one set-up position to a next, subsequent set-up position. A joystick is controlled in implement control mode to operate at least one of a boom, a stick, and a bucket of the excavating assemblage during a first excavating phase from a first machine set-up position. The first excavating phase is terminated and, during a machine repositioning phase, the machine is moved to a second machine set-up position for a second excavating phase at the second machine set-up position. After terminating the first excavating phase and before moving the machine to the second machine set-up position, an input/display device is accessed and activated to convert the joystick from implement control mode to machine control mode. At least machine steering and machine propulsion are controlled with the joystick set in the machine control mode during the machine repositioning phase.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: December 22, 2009
    Assignee: Caterpillar Inc.
    Inventors: Daniel Stanek, Roger D. Koch, Jeffrey S. Alig, Robert J. Price