Hollow Cutter Head Patents (Class 142/32)
  • Patent number: 6135174
    Abstract: A lathe cutter and chip fan is described in which an annular frame includes a rotary portion that is driven to rotate about an axis. The rotary portion is annular, forming a workpiece receiving opening. A cutter is mounted on the rotary portion and projects into the workpiece receiving opening. The cutter rotates with the rotary portion to cut material from a workpiece positioned within the workpiece opening. A housing forms a compartment about the rotary portion and cutter, with a central housing opening substantially aligned with the workpiece receiving opening. A chip discharge openly communicates with the compartment and is situated substantially tangentially with respect to a rotational path of the cutter. A plurality of impellers are mounted to the rotary portion for rotation therewith.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: October 24, 2000
    Assignee: Nevilog, Inc.
    Inventor: Richard L. Neville
  • Patent number: 4768903
    Abstract: A dowel attachment for a router wherein the attachment is a rectangular body with a bore and a counterbore extending through the body to receive a blank to be formed into a dowel. The bore being adapted to have the finished dowel pass through it. A notch is formed in the rectangular body, perpendicularly and tangent to the bore. The notch receives a driven router bit. An electric drill may be attached to the blank being cut to spin the blank as it is fed through the counterbore and bore.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: September 6, 1988
    Inventor: Morris L. Merritt Jr.
  • Patent number: 4553575
    Abstract: A dowel cutting method and apparatus comprising a stationary cutting tool having an internal bore and at least one cutting edge at its input end into which woodstock is disposed while being rotated by an electric hand drill or the like to create a finished dowel at the opposite end of the cutting tool. The cutting tool may be held in a bench vise. A sizer for dowels is also disclosed comprising a series of holes in a flat metal plate having a ground side which cuts down a dowel in a sequence of operations, if needed, to an accurate smaller dowel. A simple final sanding operation is also disclosed utilizing sandpaper and the sizing apparatus.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: November 19, 1985
    Inventor: Kenneth L. Brown