Cutters – for shaping – Including tool having plural alternatively usable cutting edges – With integral chip breaker – guide or deflector
Reexamination Certificate
2005-02-08
2005-02-08
Wellington, A. L. (Department: 3722)
Cutters, for shaping
Including tool having plural alternatively usable cutting edges
With integral chip breaker, guide or deflector
C407S061000
Reexamination Certificate
active
06851897
ABSTRACT:
The cutting tool insert1is in a substantially plate form and of polygonal shape and is provided with a major cutting edge16A (or16B) extending from one corner14A (or14B) toward the other corner15A (or15B). The major cutting edge16A (or16B) comprises a first edge line and a second edge line that meet to form an obtuse angle, which causes the area where the first and second edge lines meet to protrude slightly outwards, as viewed from above. The first edge line slopes down towards the second edge line so that the distance with a seat face11decreases gradually as viewed from the side, and the first edge line forms an obtuse angle with the second edge line causing the top face area to dip down towards the seat face. The first edge line is shorter than the second edge line.
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Big Daishowa Seiki Co., Ltd.
Ross Dana
Wellington A. L.
Wolf Greenfield & Sacks P.C.
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