Patents by Inventor Billie R. Kirkland

Billie R. Kirkland 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).

  • Roller mill
    Patent number: 4765755
    Abstract: An improved roller-type grinding mill wherein antifriction thrust-type roller bearings and an improved packing are utilized to improve the loading stress absorption characteristics and to prevent dust from entering into the mill structure and thereby shortening the useful life thereof.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: August 23, 1988
    Assignee: J. M. Huber Corporation
    Inventor: Billie R. Kirkland