Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Patent
1995-12-06
1997-07-15
Bray, W. Donald
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
1441341, 144218, 144137, 407 42, B26D 112, B23C 514
Patent
active
056477007
ABSTRACT:
A router bit for trimming the overhanging edge of a plastic laminate is provided having a rotatable shaft. A cutting tool is connected to the shaft and a cutting flute or wing is connected to the cutting tool. A ball-bearing guide rides along the apron of a plastic laminated top holding the cutting flute or wing in a spaced relationship to the plastic laminate. The shape of the cutting flute or wing employs two straight edges connected by a small radial section. A first straight edge is provided which lies at an angle of 5.degree. to 7.degree. with a portion of the side edge of the laminate. The second straight edge is provided which lies at an angle of 40.degree. to 60.degree. with a portion of the side edge and the top edge of the plastic laminate. The radial section, connecting the first straight edge to the second straight edge, has a small radius of curvature of 0.005 inches to 0.015 inches.
REFERENCES:
patent: 4133361 (1979-01-01), Martinu
patent: 4865093 (1989-09-01), Forb et al.
patent: 4993465 (1991-02-01), Cotton et al.
patent: 5063980 (1991-11-01), Schultz
patent: 5127774 (1992-07-01), Telford, III
Bray W. Donald
Fred M. Velepec Co., Inc.
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