Patents by Inventor Jon S. Schumacher

Jon S. Schumacher 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 straightening metal bars having extremely low levels of residual stress after straightening operations are completed
    Patent number: 5672218
    Abstract: Method of straightening a metal bar in which the metal bar is straightened by transporting the metal bar between a pair of rollers at a first straightening pressure. An outer layer portion of the metal bar is then removed in order to provide the metal bar with a reduced diameter and a substantially round cross-section. The metal bar is then again straightened by transporting the metal bar between a pair of rollers at a second straightening pressure. Subsequent to such straightening step, the metal bar desirably is heat treated under stress relieving conditions.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: September 30, 1997
    Assignee: Slater Steels Corporation
    Inventor: Jon S. Schumacher