Patents by Inventor James E. Warthan

James E. Warthan 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).

  • Electro mechanical switch having remotely controlled off position
    Patent number: 4804862
    Abstract: The switch includes a cantilevered switch arm including a power contact, first and second switch terminals with the power contact positioned therebetween, the cantilevered switch arm being yieldably biased with the power contact engaging the first switch terminal. A manually operated lever is provided for engaging and disengaging the switch arm and moving the power contact into engagement with the second switch terminal. A pivotable latch arm is provided for latching the switch arm with the power terminal engaging the second switch terminal. A solenoid is actuable in response to removal of power from the power contact for pivoting the latch arm and releasing the switch arm.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: February 14, 1989
    Assignee: Steven F. Lachman
    Inventors: Gordon Bowman-Jones, James E. Warthan