Patents by Inventor James M. Mastel

James M. Mastel 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).

  • Apparatus for regulating feed thickness in a belt press
    Patent number: 4836100
    Abstract: A squeeze plate apparatus for a belt press is provided. The apparatus has a squeeze plate operatively connected to a rotating pipe. The pipe is mounted to the frame of the belt press. The vertical spacing between the squeeze plate and the pipe varies during rotation of the pipe so that the squeezing action of the plate can be selectively varied.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: June 6, 1989
    Assignee: Ashbrook-Simon-Hartley Corporation
    Inventors: Harold W. Johnson, James M. Mastel, Alan L. Scott