Patents by Inventor John J. Dieser

John J. Dieser 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 for eliminating distortion at the end of a tube bend
    Patent number: 4481803
    Abstract: A tube is bent a desired angle by locating it over a mandrel, clamping the tube between a clamp die and bend die, rotating the clamp and bend dies through the desired angle, where extraction of the mandrel from the tube is initiated before rotation of the dies is completed.
    Type: Grant
    Filed: March 18, 1983
    Date of Patent: November 13, 1984
    Assignee: Teledyne Industries, Inc.
    Inventor: John J. Dieser