Patents by Inventor Wayne H. Pagel

Wayne H. Pagel 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 vane pump with undervane pumping and an auxiliary outlet
    Patent number: 4484863
    Abstract: A rotary vane pump having a rotatable rotor in an elliptical chamber and a plurality of radially slidable vanes dispersed around the rotor, and having an intake phase and a discharge phase of rotor rotation, wherein liquid is admitted into the pump, pressurized and expelled from the pump at an elevated pressure. The improvement including passages in flow communication with the pressurized side of the pump vanes, and an auxiliary outlet communicating with the passages to provide an auxiliary pressurized liquid outlet from the pump, wherein the auxiliary pressure is developed by the pump vanes.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: November 27, 1984
    Assignee: Hydraulic Services Inc.
    Inventor: Wayne H. Pagel