Patents by Inventor Kevin F. Colvin

Kevin F. Colvin 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).

  • Patent number: 6270298
    Abstract: The invention is directed to an improved cutting tool point. In the preferred embodiment, the cutting tool is comprised of a marginal end portion (15), adapted to selectively remove material from a work piece when the tool is moved relative to the work piece and having a leading cutting lip (16), a trailing dam (18), a recessed surface (19) extending into the marginal end portion between the cutting lip and the dam, and a coolant hole (20) communicating with the recessed surface, such that the recessed surface forms a reservoir (40) for coolant (36). The present invention also discloses a marginal end portion having an axis of rotation (42), at least one flute (21), and at least one chip-forming notch (31) extending from the flute into the marginal end portion and beyond the axis of rotation. The present invention also discloses a marginal end portion having a chip former (37) and a chip breaker (32).
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: August 7, 2001
    Inventor: Kevin F. Colvin
  • Patent number: 6056486
    Abstract: The invention is directed to an improved cutting tool point. In the preferred embodiment, the cutting tool is comprised of a marginal end portion (15), adapted to selectively removed material from a work piece when the tool is moved relative to the work piece and having a leading cutting lip (16), a trailing dam (18), a recessed surface (19) extending into the marginal end portion between the cutting lip and the dam, and a coolant hole (20) communicating with the recessed surface, such that the recessed surface forms a reservoir (40) for coolant (36). The present invention also discloses a marginal end portion having an axis of rotation (42), at least one flute (21), and at least one chip-forming notch (31) extending from the flute into the marginal end portion and beyond the axis of rotation. The present invention also discloses a marginal end portion having a chip former (37) and a chip breaker (32).
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: May 2, 2000
    Inventor: Kevin F. Colvin