Patents by Inventor A. LeVan Webb

A. LeVan Webb 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).

  • Cattle guard
    Patent number: 5203544
    Abstract: The disclosed cattle guard includes a base and grills which may easily be removed for cleaning without disturbing the adjacent roadway. The cattle guard includes side wings which are attached to the base to ease the removal of the grills. In a further aspect, the ends of the base include angled portions designed to facilitate funneling of water through the base while preventing ground erosion.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: April 20, 1993
    Inventor: A. LeVan Webb
  • Device for supporting a mechanic in a horizontal position above an automotive vehicle engine compartment
    Patent number: 4964487
    Abstract: A device supports a mechanic above the engine compartment of an automotive vehicle and is movable in at least the vertical and in the horizontal planes. The device also includes a jackscrew lifting element so a user support can be moved vertically with respect to the rest of the device.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: October 23, 1990
    Inventors: A. LeVan Webb, Margaret Webb