Patents by Inventor Mark R. Murphy

Mark R. Murphy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8205539
    Abstract: A centering mechanism for a hydraulic pump, a hydraulic pump assembly and a method of assembling a hydraulic pump assembly. The pump assembly generally includes a hydraulic pump, a control arm, and a centering mechanism. The pump generally includes a pump housing, a pump mechanism operable to control a flow of hydraulic fluid through the housing, the pump mechanism having a neutral condition in which fluid does not flow through the housing, a trunnion cap connectable to the housing, the trunnion cap and the housing cooperating to house the pump mechanism, and an input shaft extending along an axis and through the trunnion cap, the shaft being rotatable to operate the pump mechanism. The control arm is connected to the shaft, and movement of the control arm causes rotation of the shaft.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: June 26, 2012
    Assignee: Clark Equipment Company
    Inventors: Brandon J. Kisse, Mark R. Murphy
  • Patent number: 7975787
    Abstract: An attachment system to fasten a power system to a frame of a loader is discussed. The frame has a proximal end, a distal end, and first and second opposing sides. The power system has an engine, and an arrangement of one or more hydraulic pumps attached to the engine. The attachment system has first and second connection points positioned in close proximity to a center of gravity of the power system relative to the direction between the proximal and distal ends of the loader. The attachment system also has a third connection point positioned distally from the first and second connection points, wherein the positions of the first, second and third connection points connect the power system to the frame to allow most of the weight of the power system to be loaded onto the first and second connection points.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: July 12, 2011
    Assignee: Clark Equipment Company
    Inventors: Brandon J. Kisse, Mark R. Murphy, Shannon L. Reardon
  • Publication number: 20100107453
    Abstract: An attachment system to fasten a power system to a frame of a loader is discussed. The frame has a proximal end, a distal end, and first and second opposing sides. The power system has an engine, and an arrangement of one or more hydraulic pumps attached to the engine. The attachment system has first and second connection points positioned in close proximity to a center of gravity of the power system relative to the direction between the proximal and distal ends of the loader. The attachment system also has a third connection point positioned distally from the first and second connection points, wherein the positions of the first, second and third connection points connect the power system to the frame to allow most of the weight of the power system to be loaded onto the first and second connection points.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 6, 2010
    Applicant: Clark Equipment Company
    Inventors: Brandon J. Kisse, Mark R. Murphy, Shannon L. Reardon
  • Publication number: 20100021325
    Abstract: A centering mechanism for a hydraulic pump, a hydraulic pump assembly and a method of assembling a hydraulic pump assembly. The pump assembly generally includes a hydraulic pump, a control arm, and a centering mechanism. The pump generally includes a pump housing, a pump mechanism operable to control a flow of hydraulic fluid through the housing, the pump mechanism having a neutral condition in which fluid does not flow through the housing, a trunnion cap connectable to the housing, the trunnion cap and the housing cooperating to house the pump mechanism, and an input shaft extending along an axis and through the trunnion cap, the shaft being rotatable to operate the pump mechanism. The control arm is connected to the shaft, and movement of the control arm causes rotation of the shaft.
    Type: Application
    Filed: August 30, 2007
    Publication date: January 28, 2010
    Applicant: CLARK EQUIPMENT COMPANY
    Inventors: Brandon J. Kisse, Mark R. Murphy