Patents by Inventor Phillip Rood Wheeler

Phillip Rood Wheeler 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).

  • Solar heating system
    Patent number: 4018581
    Abstract: A heating system using heat derived from solar collectors to operate a reciprocating piston heat engine which provides operating power to drive a heat pump, and with additional capability to operate as a heat pump with electric motor drive, and with separate inlet valves for heat engine and heat pump operation.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: April 19, 1977
    Inventors: John Denis Ruff, Phillip Rood Wheeler