Patents by Inventor Hervey Libbert

Hervey Libbert 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).

  • Forming process for producing sharp corners in sheet metal
    Patent number: 4926676
    Abstract: A forming process for producing sharp corners in sheet metal workpieces, and a press brake useful in carrying out such a process, involving a male forming die incorporating a nipple for extruding the sheet metal stock material into the adjacent region defined by the female coining die for forming a sharp corner in the workpiece.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: May 22, 1990
    Assignee: Lane & Roderick, Inc.
    Inventors: Lowell Bailey, Hervey Libbert