Patents by Inventor Wallace W. McCormick

Wallace W. McCormick 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).

  • Hole sizing tool
    Patent number: 4580934
    Abstract: A rotary hole sizing tool for enlarging a pre-existing hole comprising a shank portion, a disk-like cutting member having cutting edges formed on the axially advancing face thereof, a pilot member for engaging the walls of the pre-existing hole and aligning the cutting member on the center of the pre-existing hole, the pilot member including a stepped shoulder of reduced diameter forming an undercut clearance between the pilot member and the cutting member, and screw means for securing the pilot member and the cutting member to the mandrel.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: April 8, 1986
    Inventor: Wallace W. McCormick