Patents by Inventor David N. Owens

David N. Owens 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).

  • Diagnostic apparatus and methods for ignition circuits
    Patent number: 5572135
    Abstract: Diagnostics apparatus for detecting operation of an exciter circuit connected to an igniter, includes means for detecting current discharged from the exciter circuit through the igniter, means for detecting current discharged from the exciter circuit other that through the igniter, and means for producing a single output that indicates the type of discharge from the exciter circuit.
    Type: Grant
    Filed: February 26, 1994
    Date of Patent: November 5, 1996
    Assignee: Simmonds Precision Engine Systems
    Inventors: David N. Owens, Dale F. Geislinger
  • Coreless detector for ignition dischage current
    Patent number: 5508618
    Abstract: In combination, a gas turbine engine ignition system exciter, an igniter, a conductor that connects the exciter to the igniter to form a discharge circuit, and a current pulse detector for detecting current pulses in the circuit, the detector comprising a wire disposed in close proximity to a current carrying element in the circuit so that a sense current is induced in the wire across a coreless gap; the detector further comprising a signal conditioning circuit for converting the sense current to an output that indicates occurrence of a spark discharge.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: April 16, 1996
    Assignee: Simmonds Precision Engine Systems
    Inventor: David N. Owens