Patents by Inventor Matthew Hennemann

Matthew Hennemann 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).

  • Publication number: 20050210871
    Abstract: A hybrid hydraulic system for a work vehicle is provided that includes a first fixed displacement hydraulic pump whose outlet is connected to a priority valve. The priority valve, in turn, directs the pump's flow to a first group of closed center backhoe valves on a primary circuit and a second group of open center loader valves on a secondary circuit. A second hydraulic pump is provided with independent load sensing capability to supplement fluid flow provided by the first pump.
    Type: Application
    Filed: March 27, 2004
    Publication date: September 29, 2005
    Inventors: Richard Lech, Matthew Hennemann
  • Publication number: 20050087386
    Abstract: An articulated wheel loader provides a cushioned deceleration at the limits of its turning to the left and to the right by reducing fluid flow through a hydraulic steering cylinder as the articulated frames approach abutment. The throttled fluid flow causes a variable displacement pump to de-stroke, which further cushions the deceleration.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Matthew Hennemann, David Natzke, Donnell Dunn, Roger Mickelson