Patents by Inventor Randall P. Kellar

Randall P. Kellar 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).

  • Ground and line fault interrupt controller/adapter
    Patent number: 7215519
    Abstract: An adapter module for detecting an electronic fault condition in an electronic circuit is disclosed wherein the adapter module may include electrical fault indicator circuitry. In general, the electrical fault indicator circuitry may include ground fault indicator circuitry, line fault indicator circuitry, or ground and line fault indicator circuitry. The adapter module may also include a magnetic device capable of detecting a magnetic field between the electrical fault indicator circuitry and an electrical circuit module. The electrical circuit module may include a switch such as a circuit breaker, a relay, or a magnetically sensitive switch. The magnetic device may include a Hall effect device or a magnetic core.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 8, 2007
    Assignee: The Boeing Company
    Inventors: Paul L. Blumenauer, Dai H. Pham, Douglas S. York, Randall P. Kellar