Patents by Inventor Lawrence F. Lorenz, Sr.

Lawrence F. Lorenz, Sr. 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).

  • Deep-drawn stamping process including side piercing
    Patent number: 5761949
    Abstract: A method for forming a deep-drawn, one-piece, double-walled, cylindrical ring having tabs extending inwardly from the inner wall. The inner wall is formed and pierced to form the tabs. The outer wall is subsequently formed, or completed, to cover the tabs extending from the inner wall. In a preferred embodiment, the tab is formed with a bend by working the inner wall both outwardly and inwardly.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: June 9, 1998
    Assignee: Trans-Matic Manufacturing Company
    Inventors: Ronald M. Dalessandro, Lawrence F. Lorenz, Sr., Michael H. Carr