Patents by Inventor Marc D. Schmatjen

Marc D. Schmatjen 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).

  • Chip cutting knife with spaced deflector ridges
    Patent number: 5819826
    Abstract: A double-edged replaceable knife adapted for use with chip-cutting machines of various descriptions. The knife has a pair of spaced deflector portions projecting from the front side of the knife. Between the deflector portions is a channel used in properly locating the knife on a chip-cutting machine. The deflector portions are spaced at equal distances from respective cutting edges in the knife, and provide wear surfaces fronting the movement of chip material thereacross. The deflector portions also control the shape of chips cut by the machine mounting the knife.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: October 13, 1998
    Assignee: Key Knife, Inc.
    Inventor: Marc D. Schmatjen