Patents by Inventor Leo C. Sholl

Leo C. Sholl 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).

  • Method of spin forming and part made thereof
    Patent number: 6694791
    Abstract: A method of cold forming a capped cylinder with geometrically spaced torsional engagement radial projections on an exterior side of the capped cylinder is provided. The method includes the step of striking a generally flat blank to form a drawn part having a first capped portion and a second cylindrical portion adjacent an open end of the capped cylinder, placing the drawn part with the capped portion into a die with a cylindrical cavity portion having a first diameter with radial projections extending to a second diameter greater than said first diameter; inserting into the drawn part open end a mandrel, and rotating said mandrel with respect to the drawn part to plastically deform the drawn part cylindrical portion radially outward into the die cylindrical portion to cold form the radial projections on the exterior side of the second cylindrical portion of the capped cylinder.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: February 24, 2004
    Assignee: Hayes-Albion Corporation
    Inventors: Gerald M. Johnson, Leo C. Sholl