Patents by Inventor Clifford E. Witcher, Jr.

Clifford E. Witcher, Jr. 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).

  • Continuous vulcanization interface control
    Patent number: 4657969
    Abstract: Method of and apparatus for controlling the liquid-steam interface in a continuous vulcanization system which includes the steps of selecting a preferred water-steam interface position within a curing tube, detecting the elevation of water in the tube by a water sensitive sensing means, converting the detected elevation data into a signal, and controlling the position of the interface according to the signal.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: April 14, 1987
    Assignee: Southwire Company
    Inventors: Ronald R. Martin, Clifford E. Witcher, Jr.