Patents by Inventor Clifford M. Cheary

Clifford M. Cheary 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).

  • Ignition systems
    Patent number: 4413303
    Abstract: An electrical ignition system for a burner in which a spark generation circuit is arranged to charge a capacitor in one sense, and in which a flame sensing device charges the capacitor in the opposite sense, a detector circuit being provided to monitor the presence and polarity of a charge on the capacitor.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: November 1, 1983
    Assignee: Dunlop Limited
    Inventors: Clifford M. Cheary, David J. Lancaster, Paul P. Smith