Patents by Inventor Thomas C. Grieshaber

Thomas C. Grieshaber 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: 5806313
    Abstract: This invention relates to an arrangement for communicating fluid between a pressurized source and an implement that is remotely mounted on a linkage arrangement of a construction machine. The conduit arrangement includes a pair of conduits positioned internally within the linkage arrangement. One conduit communicates the pressurized fluid to a control valve mounted on the end of the linkage, while the second returns the fluid to a reservoir. This arrangement permits a plurality of conduits to extend between the control valve and a multi-function implement mounted on the linkage arrangement while limiting the number of conduits between the control valve and the source of pressurized fluid.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 15, 1998
    Assignee: Caterpillar Inc.
    Inventors: Howard T. Koshi, Thomas C. Grieshaber