Patents by Inventor Frederic F. Chapman

Frederic F. Chapman 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).

  • Waferizer
    Patent number: 4139034
    Abstract: A waferizer having a rotatable cylindrical head from which a plurality of waferizing knives project for slicing wood stock, and rollers mounted on the head which have a plurality of longitudinally extending radially projecting blades for incising the face of the wood stock to a depth equal to the depth of cut of the knives so as to produce wafers of uniform width.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: February 13, 1979
    Assignee: Hawker Siddeley Canada Ltd.
    Inventor: Frederic F. Chapman