Patents by Inventor Larry C. Mittell

Larry C. Mittell 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).

  • Sequenced drive for rotary valves
    Patent number: 4288060
    Abstract: A sequenced drive for rotary valves which provides the benefits of applying rotary and linear motions to the movable sealing element of the valve. The sequenced drive provides a close approximation of linear motion while engaging or disengaging the movable element with the seat minimizing wear and damage due to scrubbing action. The rotary motion of the drive swings the movable element out of the flowpath thus eliminating obstruction to flow through the valve.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: September 8, 1981
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Larry C. Mittell