Rodney G Riel

US Patent:

7220171, May 22, 2007

Filed:

Dec 30, 2005

Appl. No.:

11/322395

Inventors:

Rodney G. Riel - Springfield OR, US

International Classification:

B24B 11/10
B28D 1/30

US Classification:

451 50, 125 3

Abstract:

A cutting cup for a sphere making machine. The cutting cup includes a cylindrical ring having an outer wall, an inner wall, a bottom wall, and a top wall, the top wall having at least one beveled facet angled downwardly from the outer wall to the inner wall. A cutting element is attached to each of the beveled facets. Each of the cutting elements has a cutting edge adapted to at least partially contact a workpiece to be formed into a sphere. A mounting member is attached to the bottom wall of the cylindrical ring for attaching the cutting cup to the spindle of a sphere making machine.