Patents by Inventor Donald Kenneth Georgi

Donald Kenneth Georgi 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).

  • Open circuit detector
    Patent number: 4023073
    Abstract: Apparatus is disclosed for monitoring an alternating current circuit having a three wire connection, wherein alternating voltage power is applied between two wires and the third wire is a circuit ground. The apparatus detects an open ground circuit and opens a circuit breaker to disconnect the voltage over the two alternating current wires whenever an open ground circuit is detected.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: May 10, 1977
    Assignee: Graco Inc.
    Inventor: Donald Kenneth Georgi