Patents by Inventor Philip Arthur Davies

Philip Arthur Davies 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).

  • Fastener and screw means therefor
    Patent number: 5762560
    Abstract: The fastener comprises, in combination, a screw having a threaded shaft, and a fastening strip or sheet having a raised portion provided with an aperture being preformed to have an at least partly helical threadform-defining edge shaped and dimensioned to matingly receive the threaded shaft of the screw means. The crests comprising the threaded shaft of the screw means have an asymmetrical surface profile in the axial direction of the threaded shaft which enables the shaft to withstand greater applied torque.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: June 9, 1998
    Inventors: John Eric Emmett, Philip Arthur Davies