Patents by Inventor Karl S. Borg

Karl S. Borg 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).

  • Variable force actuator
    Patent number: 4050670
    Abstract: An actuator for reciprocating stem control valves having a linkage system affording variable force, reversible action, and adaptability to different valve strokes.
    Type: Grant
    Filed: February 5, 1976
    Date of Patent: September 27, 1977
    Assignee: Masoneilan International, Inc.
    Inventors: Karl S. Borg, Gareth A. Keith