Patents by Inventor Thomas Benham

Thomas Benham 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 and apparatus for punching holes in polymer tubes
    Patent number: 4554849
    Abstract: A polymer tube is inserted into a passageway in a guide block and a polymer support rod is inserted into the tube. Pluralities of tubular punches are simultaneously driven from different radial positions through the wall of the tube and into the support rod to form holes in the tube.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: November 26, 1985
    Assignee: Mallinckrodt, Inc.
    Inventor: Thomas Benham