Patents by Inventor George W. Stamp

George W. Stamp 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).

  • Bleeder valve assembly
    Patent number: 4899979
    Abstract: A valve assembly has a valve lid assembly which can be fitted in sealing relation on a valve seat, an over-center device can serve to force the lid on to the seat; a drive shaft connected to the lid assembly and drive means for rotating the shaft to open and close the valve seat, the over-center device serving to oppose rotation of the shaft up to a critical position whereupon the device assists in rotation of the shaft to open the valve seat.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: February 13, 1990
    Assignee: Davy McKee (Stockton) Limited
    Inventor: George W. Stamp