Patents by Inventor Warren C. Bergmann

Warren C. Bergmann 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).

  • Three-way solenoid-operated pinch valve assembly
    Patent number: 4259985
    Abstract: A three-way pinch valve assembly is operated with a single solenoid with one pinch valve mounted on each end of the solenoid, one valve will normally be open and the other valve will normally be closed. The plunger of the solenoid is split so that each movable pinch bar of each pinch valve is separately adjustable. A back-up pinch bar for each movable pinch bar is likewise adjustable. A three-way valve is provided by connecting the tubing from the two pinch valves to a T-fitting having a single outlet.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: April 7, 1981
    Assignee: Brunswick Corporation
    Inventor: Warren C. Bergmann