Patents by Inventor Paul R. Hardy

Paul R. Hardy 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).

  • Screw or nut and a captive washer
    Patent number: 4123132
    Abstract: A captive washer and threaded fastener combination. The washer has a non-planar apertured portion, for passage of a screw shank, which is plastically deformed on first tightening of the fastener. The plastic deformation causes further extending portions of the washer to engage a shoulder on the screw or nut, and hold the washer captive.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 31, 1978
    Assignee: PYE (Electronic Products Ltd.)
    Inventors: Paul R. Hardy, Arthur T. Spencer