Patents by Inventor Fred A. Shepherd

Fred A. Shepherd 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).

  • Friction spinning roller
    Patent number: 4702068
    Abstract: The perforated roller of a friction spinning unit includes an outer sleeve having vent openings at one end to provide an air leakage path which by-passes the adjacent bearing of the sleeve, and further by-passing vent passages radially outwardly of the bearing at the opposite end of the sleeve.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: October 27, 1987
    Assignee: Hollingsworth U.K., Ltd.
    Inventors: John Whiteley, Fred A. Shepherd