Patents by Inventor Corey Crispell

Corey Crispell 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).

  • Knurled cup-point set screw
    Patent number: 4764068
    Abstract: A set screw having a novel cup-point for engagement with a shaft or rod. The cup-point has knurling on a portion of its outer circumferential surface and is provided with a smooth frustoconical surface portion adjacent the knurling such that, in use, the smooth surface portion of the cup-point engages the surface of the rod or shaft before the knurling.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: August 16, 1988
    Assignee: SPS Technologies, Inc.
    Inventor: Corey Crispell