Patents by Inventor Paul J. Van De Velde

Paul J. Van De Velde 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).

  • Valve assembly
    Patent number: H1810
    Abstract: A valve assembly includes a first valve having a first valve stem configured for controlling operation of the first valve, and a second valve having a second valve stem configured for controlling operation of the second valve. A linkage is provided for interconnecting the first and second valve stems so that rotation of the first valve stem rotates the second valve stem, and thereby operates the first and second valves.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: November 2, 1999
    Inventor: Paul J. Van De Velde