Patents by Inventor John William Murphy

John William Murphy 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).

  • Motor lamination notching apparatus and method with selectively positionable punches
    Patent number: 6769600
    Abstract: A notching apparatus for notching both an outer lamination and an inner lamination from a single lamination blank at s single station using a single press device includes a multi-piece die assembly provides multiple outer slot punches, multiple inner slot punches, and a separator punch. The outer slot punch portion, inner slot punch portion, and separator punch portion of the multi-piece die assembly are all selectively positionable in respective punching positions and non-punching positions to facilitate a controlled notching operation.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 3, 2004
    Assignee: Dayton-Phoenix Group, Inc.
    Inventors: Roger E. Knox, John William Murphy