Patents by Inventor Winford K. Allan

Winford K. Allan 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 cutting reinforced foam
    Patent number: 3939741
    Abstract: A saw blade having one tooth tilting to the left, one tooth tilting to the right, and a third tooth straight, repeated throughout the saw blade. Tilt causes the set teeth to be shorter than the straight teeth which first contact and cut the foam and fiber glass strands. The cut strands are free to move away from the following raker teeth which remove additional foam, leaving the desired tufts.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: February 24, 1976
    Assignee: McDonnell Douglas Corporation
    Inventor: Winford K. Allan