Patents by Inventor Robert Bremner

Robert Bremner 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).

  • Electrical heaters
    Patent number: 4822983
    Abstract: Apparatus for automatically disconnecting a conductive polymer heater if an arcing fault occurs. A sensor conductor is incorporated into the heater, so that if an arcing fault occurs, the current through the sensor conductor increases and triggers a safety circuit to disconnect the heater. The sensor conductor is preferably insulated by an organic polymer which pyrolyses if an arcing fault occurs and thus permits current to flow between the sensor conductor and an electrode of the heater.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: April 18, 1989
    Assignee: Raychem Corporation
    Inventors: Robert Bremner, Hugh Duffy, Burton E. Miller