Patents by Inventor Thomas Wheatley

Thomas Wheatley 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).

  • Three pot two way check valve
    Patent number: 3974848
    Abstract: A three port, two way check valve is disclosed. It is made of a standard tee and standard flanges attached thereto, typically in conformance with API standards. A flat disc is inserted in one of the openings, the disc incorporating an inernal circular valve seat and a hinged valve member which closes against the disc. A similar apparatus is installed in the center port of the tee. The flapper valve elements are connected together by a connecting rod. The connecting rod assures that when one is pulled closed that the other is pulled open. The connecting rod assures that the check valve function is obtained.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: August 17, 1976
    Inventor: Thomas Wheatley