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US 6,220,794 B1Granted
Spherical seat cutting apparatus
AssigneeCarboloy Inc.
InventorsGregory Allen Calamia, Alan Joseph Kardos, Terrence John Poltz
Life of this patent
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AssigneeCarboloy Inc.
InventorsGregory Allen Calamia, Alan Joseph Kardos, Terrence John Poltz
Estimating the term…
A rotary cutting tool for cutting a spherical seat on a surface of a workpiece comprises a body adapted to carry cutting inserts. The body is fixed to a drive shaft which rotates the body about a longitudinal center axis of the body. The body includes a forwardly facing front surface of generally convex shape, and a plurality of insert seats formed in the front surface in circumferentially spaced relationship about the axis. Each of the seats faces forwardly and comprises recesses of generally pyramidal shape. A screw threaded hole extends through each of the seats in a rearward direction and is adapted to receive an insert fastening screw. The cutting inserts include projections of generally pyramidal shape received in respective ones of the recesses. The projections are formed by a first plurality of V-shaped parallel grooves intersected by a second plurality of V-shaped parallel grooves arranged perpendicular to the first groove.
A rotary cutting tool for cutting a spherical seat on a surface of a workpiece, the cutting tool comprising a body having insert seats adapted to carry cutting inserts, a through-bore extending through the body along a longitudinal center axis of the body, the body including a forwardly facing front surface of generally convex shape, all of the insert seats formed in the front surface and arranged in circumferentially spaced relationship around the axis, each of the insert seats facing generally forwardly and comprising recesses of generally pyramidal shape, a screw-threaded hole extending through each of the seats in a rearward direction and adapted to receive an insert-fastening screw, the forwardly facing surface being inclined forwardly toward the center axis, every insert seat on the body being disposed in the inclined forwardly facing surface, wherein the body contains no insert seat other than those disposed in the inclined forwardly facing surface.
Dependencies are inferred from the claim text.