Cutting – Means to drive or to guide tool – Tool pair positionable as a unit
Reexamination Certificate
2007-02-06
2007-02-06
Peterson, Kenneth E. (Department: 3724)
Cutting
Means to drive or to guide tool
Tool pair positionable as a unit
C083S685000, C029S465000
Reexamination Certificate
active
09760593
ABSTRACT:
A punching apparatus is provided which can of punch a non-circular holes at a predetermined position of a work piece. In the punching apparatus for punching a hole by means of a punch integrated into any one of the moving part of a press working machine or the supporting part of the press working machine, and a die integrated with the other one of the moving part and the supporting part; each of the punch and the die has plurality of planes to be fitted with datum planes of a fitting jig. The punching unit for the punching apparatus comprises a punch, a die, and a fitting jig for positioning the punch and the die with respect to each other, wherein each of the punch and the die has plurality of faces for fitting and the fitting jig has datum planes to be fitted with the planes for fitting of the punch and the die.
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Notice of Reasons for Rejection dated Apr. 22, 2003 (and English translation of same).
Ishii Toru
Kawase Shinobu
Dickstein & Shapiro LLP
Nguyen Phong
Yamaha Corporation
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