Patents by Inventor Geoffrey D. Waters

Geoffrey D. Waters 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).

  • Patent number: RE30206
    Abstract: A method of manufacture of an annular seal element comprises the steps of providing an apertured backing ring with closely packed bristles extending radially outwardly from the circumference thereof, clamping the free ends of the bristle between a pair of co-axial rings and welding the rings and the outermost tips of the bristles into a unitary structure and subsequently machining away the original backing ring to leave the rings with radially inwardly extending bristles.The invention also includes a sealing element made by the method.
    Type: Grant
    Filed: May 10, 1977
    Date of Patent: February 5, 1980
    Assignee: Rolls Royce (1971) Limited
    Inventors: John G. Ferguson, Geoffrey D. Waters