Patents by Inventor Stanley F. Parker

Stanley F. Parker 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).

  • Tamper proof threaded fastener
    Patent number: 5697743
    Abstract: A tamper proof threaded fastener construction (10) comprising a conventional elongated threaded fastener body member (20) having an enlarged head member (30) provided with a contoured and tapered frangible member (40) which is used to drive the fastener construction (10) in a rotatable fashion, and when the frangible member (40) is removed leaves an irregular surface (45) which prevents the fastener construction (10) from being rotatably driven in any direction.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: December 16, 1997
    Inventor: Stanley F. Parker