Patents by Inventor Peter J. Stokes

Peter J. Stokes 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).

  • Sonar systems
    Patent number: 4897824
    Abstract: A sonar system for a water craft including a transducer assembly mounted to the hull of the water craft, and a control circuit for applying signals to the transducer for forward transmission by the transducer and for sensing signals reflected from objects forwardly of the craft and for causing actuation of an alarm. The transducer assembly is mounted for pivotal movement relative to the hull such that during pitching motion of the craft, the signals transmitted by the transducer remain in a horizontal plane.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: January 30, 1990
    Inventor: Peter J. Stokes