Patents by Inventor Robert W. Westphal

Robert W. Westphal 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).

  • COMPRESSOR SYSTEM WITH RAPID ACCESS VALVE
    Publication number: 20120279587
    Abstract: A check valve is provided for use with a compressor system having a pump and a storage tank, the check valve including a housing including an inlet connected to the pump, a tank port in fluid communication with the storage tank, and a bypass port, all in fluid communication with each other, and with a chamber. A reciprocating piston is disposed in the chamber and has a heavy spring at one end, and a light spring at the other end. The check valve is constructed and arranged so that pressurized air is accessible from the bypass port prior to the storage tank being fully pressurized.
    Type: Application
    Filed: November 3, 2011
    Publication date: November 8, 2012
    Inventors: Donald W. Pemberton, Robert W. Westphal
  • Floral sports light
    Patent number: D441904
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: May 8, 2001
    Inventor: Robert W. Westphal