Jamie L Mcdaniel

US Patent:

58951830, Apr 20, 1999

Filed:

Mar 25, 1997

Appl. No.:

8/824200

Inventors:

Jamie McDaniel - Wichita KS
David Anderson - Wichita KS

International Classification:

B23C 120

US Classification:

409179

Abstract:

A circular hole cutting apparatus comprising a support frame, having a forward end, a rearward end, a lower end, and an upper end; the forward end forming a cutting bit mounting means, capable of rotatably retaining a cutting bit so that the upper end of the cutting bit may upwardly extend from the upper end of the support frame, and so that the lower end of such a cutting bit may downwardly extend from the lower end of the support frame; and the lower end of the support frame forming a radius arm mounting means, the radius arm mounting means being capable of adjustably retaining a radius arm, so that the rearward end of the radius arm may alternately extend rearwardly from the rearward end of the support frame and retract forwardly from positions rearward of the rearward end of the support frame.