Patents by Inventor Manley C. Watkins

Manley C. Watkins 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).

  • Synchronously counter-rotating intermeshing differential speed crusher roll assembly
    Patent number: 4401279
    Abstract: A pair of counter-rotating crusher rolls are provided with intermeshing teeth having configurations especially adapted to accept and positively feed relatively large lumps or portions to be crushed into the nip of the rolls and to crush the fed material into particles of a relatively small size.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: August 30, 1983
    Assignee: General Steel Industries, Inc.
    Inventors: Achilles P. DeVita, Manley C. Watkins