Patents by Inventor Robert Edwin Waimsley

Robert Edwin Waimsley 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).

  • Rotary piston machines
    Patent number: 4044589
    Abstract: A liner element for a housing of a rotary piston machine is manufactured from a flexible metal strip and is deformed for example by pressing on one side thereof such that when the liner is assembled in a semi-cylindrical bore in the housing, the inner surface of the liner element has a trochoidal shaped surface to receive the rotor of the rotary piston machine.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: August 30, 1977
    Assignee: Vandervell Products Limited
    Inventors: Robert Edwin Waimsley, Robert Oliver, Norman Ernest Fisher