Patents by Inventor Edward LaCroix

Edward LaCroix 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).

  • Patent number: 4862718
    Abstract: Short thread rolling dies for forming a thread on a cylindrical body are disclosed comprising a face having a working configuration formed thereon for producing a thread on the cylindrical body with the face comprising a ramp surface inclined upwardly from a full form forward portion of the die to a height of from about one-third to about one-half thread depth and a dwell surface extending from the ramp surface to a finish portion of the die. The dwell surface has a length of from about two to about three times the circumference of the cylindrical body.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: September 5, 1989
    Assignee: SPS Technologies, Inc.
    Inventor: Edward LaCroix