Patents by Inventor Francis W. Foster

Francis W. Foster 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).

  • Welded edge band saw tooth geometry
    Patent number: 4292871
    Abstract: A new tooth form for a welded edge band saw, which has a positive rake angle and an enlarged gullet space, while maintaining a large wedge angle, is disclosed. The tooth geometry has a wedge angle greater than positive rake tooth forms of previous design and a gullet space comparable to a zero rake angle standard tooth form. The new tooth form provides an improved cutting rate and useful life and it is particularly advantageous in connection with high speed heavy duty band saw apparatus.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: October 6, 1981
    Assignee: The L. S. Starrett Company
    Inventors: Tom A. Neumeyer, Francis W. Foster