Patents by Inventor Kenneth P. Weichelt

Kenneth P. Weichelt 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).

  • Majority voting 3-stage servo valve system
    Patent number: 6360646
    Abstract: The invention discloses a structured set of electro-hydraulic pilot servo valves to operate an actuator arm to raise and lower an ammunition cradle. The servo valve structure and operational logic provides redundancy and reduces probability of failure. If one of the valves malfunctions, the remaining other two valves vote to carry more flow to compensate for the lost capacity thereby continuously maintaining system performance at pre-failure or near full capacity levels.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: March 26, 2002
    Assignee: United Defense, L.P.
    Inventors: Robert M. Tellander, Kenneth W. Hummel, Kenneth P. Weichelt, Edward L. Rosenwinkel