Patents by Inventor Jon D. Lark

Jon D. Lark 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).

  • Interval timer circuit
    Patent number: 4783755
    Abstract: An interval timer circuit includes an RC circuit selectively coupled to a reference voltage source such that when power is removed, the capacitor discharges in a predictable manner to provide a time dependent but power supply independent voltage across the capacitor which can be employed to determine the downtime of electrical equipment or machinery.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: November 8, 1988
    Assignee: Jet Electronics & Technology, Inc.
    Inventors: Clark E. Blanchard, Jon D. Lark