Patents by Inventor David N. Bauer

David N. Bauer 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).

  • Erosion resistant control valve
    Patent number: 4161187
    Abstract: A control valve for regulating flow of erosive fluids comprises an inlet at right angle to an outlet, a reciprocating valve plug and mating valve seat. The valve has an outer body made of stainless steel and an inner body composed of three sleeves formed of chromium carbide or tungsten carbide. The valve plug and seat are also formed of such carbide. A method for manufacture of the valves is disclosed.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: July 17, 1979
    Inventor: David N. Bauer