Patents by Inventor Robert G. Piercy

Robert G. Piercy 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).

  • Grease applicator for wheel bearings
    Patent number: 4932499
    Abstract: A tool for applying grease to the outer wheel bearing set of a spindle-mounted vehicle wheel is dimensioned for engagement with the wheel hub bore after the wheel's grease cap is removed. A pair of nested cylinders connected to a pressurized grease source form an annular passage for delivery of grease into the outer wheel bearing. The inner cylinder covers the spindle and wheel retaining hardware while the outer cylinder engages the outer rim of the wheel hub bore.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: June 12, 1990
    Inventors: Rick Covert, Robert G. Piercy