Patents by Inventor Robert C. Gutberlet

Robert C. Gutberlet 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).

  • Patent number: 4158829
    Abstract: An electromagnetically operated DC power contactor for high voltage and current use constructed to afford the required contact pressure at the arcing and main contacts with minimal magnet force together with the provision of contact wipe and shearing and rolling action to effect breaking of welds that might occur during contact closure due to bounce at the arcing contacts. A trifurcated movable contact structure is incorporated in this contactor to reduce the current in each of the individual contact segments to approximately 1/3 of the full load current thereby reducing the effective blow-apart force developed at the contacts during fault conditions.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: June 19, 1979
    Assignee: Cutler-Hammer, Inc.
    Inventor: Robert C. Gutberlet