Patents by Inventor Trevor J. Wood

Trevor J. Wood 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: 5680913
    Abstract: Snubbers are useful in dampening inertia loads at the end of stroke movement of a hydraulic motor. Known snubbers usually have a spear type annular orifice with an associated plunger which usually restrict fluid flow in the non-snubbing mode thereby slowing response in the opposite direction. The subject snubber includes a snubber stem which is moved to contact the end of a tubular hydraulic cylinder so that all fluid from an actuating chamber must pass through a circular orifice which will build up pressure in the actuating chamber to provide a dampening effect on a piston rod assembly. When fluid is directed into the actuating chamber the snubber stem will move away from the end of the tubular hydraulic cylinder to allow free flow into the actuating chamber to provide quick response for extension of the piston rod assembly.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: October 28, 1997
    Assignee: Caterpillar Inc.
    Inventor: Trevor J. Wood