Boring device

Details Boring device Boring device

2003-10-21

2008-12-02

Prone, Jason D (Department: 3724)

Selective cutting (e.g., punching)

With specific means to select a plurality of tools

Coded interposer

C083S549000, C083S687000

Reexamination Certificate

active

07458505

ABSTRACT:
A punching unit is arranged so that a plurality of punches is grouped into a first group having a predetermined number of punches and a second group containing any one of the punches in the first group and having a smaller number of punches. A punching state of the predetermined number of punches is produced by reciprocating a reciprocating member within a first range and by vertically moving the punches of the first group through the intermediary of cams and followers corresponding to the first group and another punching state of the smaller number of punches is reached by reciprocating the reciprocating member within a second movable range and vertically moving the punches of the second group through the intermediary of cams and followers corresponding to the second group. This arrangement allows the number of punches and dies to be reduced as compared to the prior art.

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English Translation of First Office Action of Chinese Patent Application No. 2003801018197.
English Translation of Second Office Action of Chinese Patent Application No. 2003801018197.

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