Patents by Inventor Virgil Richard Charles Durgan

Virgil Richard Charles Durgan 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).

  • Crankcase guard jack utilizing double parallelogram
    Patent number: 3937443
    Abstract: A jack or lift with a special fixture is provided for raising or lowering heavy and unusually shaped parts, such as crankcase and transmission guards for heavy-duty vehicles, such as track-type vehicles. The fixture on the jack engages the guard with a novel gripping or coupling arrangement for positively engaging the guard at two points. The gripping or coupling arrangement is vertically and horizontally adjustable to accommodate for different sized parts. A slope adjusting member is provided on the lift remote from the fixture to provide the third point of a three point support.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: February 10, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Virgil Richard Charles Durgan