Patents by Inventor Philip T. Zeilinger

Philip T. Zeilinger 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).

  • Fluid pumping system
    Patent number: 4204811
    Abstract: A fluid pumping system comprises a fluid pump having multiple fluid outlet flows coupled to relatively low and high pressure loads. A control valve system controls the pressure levels of the low and high pressure flows, and relieves excess fluid from the high pressure flow to the low pressure flow to augment the low pressure flow.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: May 27, 1980
    Assignee: The Garrett Corporation
    Inventors: William L. Carter, Jack F. Greathouse, Philip T. Zeilinger