Patents by Inventor Wayne E. Starr

Wayne E. Starr 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).

  • Rotary hook for sewing machine
    Patent number: 4284017
    Abstract: A rotary hook and bobbin assembly for a lock-stitch sewing machine. The bobbin has no case but has a flat end plate and a convexly curved end plate. The bobbin holder has a post with a means for locking the bobbin and a relatively wide undergroove in its wall for adjusting tension.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: August 18, 1981
    Inventor: Wayne E. Starr