Flooring hollow back relief cutting tool and method

Details Flooring hollow back relief cutting tool and method Flooring hollow back relief cutting tool and method

2006-05-09

2006-05-09

Fridie, Jr., Willmon (Department: 3722)

Cutters, for shaping

Rotary cutting tool

Including holder having seat for inserted tool

C407S067000, C407S113000

Reexamination Certificate

active

07040843

ABSTRACT:
An indexable cutting insert, a tool using a plurality of such inserts, and a method of forming flat bottomed grooves in the backs of flooring planks. The tool is arranged to accept indexable inserts, and the indexable inserts are specially arranged such that each insert has four sets of cutting faces for forming a flat bottom groove with 45 degrees groove side walls. The insert is provided with a conical dished face on its unsupported side, and a mating conical faced nut is positioned in the dished face and receives a threaded fastener, preferably a cap screw, which projects through the tool body, through the insert aperture and into the nut to accurately lock the insert in indexed position in such a way that the head of the cap screw is substantially free of impacted cutting debris.

REFERENCES:
patent: 5810518 (1998-09-01), Wiman et al.
patent: 6050751 (2000-04-01), Hellstrom
patent: 6540448 (2003-04-01), Johnson
patent: 6796750 (2004-09-01), Men

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