Patents by Inventor Martin Damien McVicar

Martin Damien McVicar 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).

  • Hydraulic drive system and controller
    Patent number: 6382340
    Abstract: A drive controller for a hydraulic drive system, a three wheeled vehicle having a pair of transversely arranged in line of drive shaft assemblies and a single wheel drive shaft assembly each assembly including a drive unit having two separate drives and has for series operation secondary hydraulic feed lines between one of the drives of the single drive units and one of the drives of each transverse drive unit. A pressure release valve is provided in each secondary line which valve is fed through a non-return valve.
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: May 7, 2002
    Assignee: Moffett Research and Development Limited
    Inventors: Cathal McKenna, Eric O'Keeffe, Andrew William Wylie, Paul Patrick Quinn, Gerard McHugh, Seamus Murchan, Martin Damien McVicar, Gerard Harte