Patents by Inventor David A. Withrow

David A. Withrow 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 slitting metal strips
    Patent number: 4782208
    Abstract: A non-contact cutting system and method cuts a strip of metal into narrow strands having varying width defining successive, longitudinally spaced portions from which end product pieces can be removed. An array of cutting heads is arranged to project cutting beams onto the surface of a metal strip to cut the strand edges in a predetermined pattern whereby a maximum number of end product piece areas is defined on the strip.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: November 1, 1988
    Inventors: David A. Withrow, Allen W. White