Patents by Inventor Larry James Conrad

Larry James Conrad 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).

  • Trolley pole support apparatus with variable length moment arm
    Patent number: 6193035
    Abstract: A trolley pole support apparatus is provided in which the trolley pole is urged to an extended position by a spring acting against a moment arm and the force required to position the trolley pole in the stowed position is minimized by minimizing the moment arm between the spring contact point and the trolley pole pivot. By doing so, even with the maximum compression of the spring in the stowed position, this small moment arm permits only small forces to be transmitted to the trolley pole shoe.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: February 27, 2001
    Assignee: Brookville Mining Equipment Corporation
    Inventor: Larry James Conrad