Dual position automatic notcher

Cutting – Processes

Reexamination Certificate

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Details

C083S684000, C083S687000, C083S669000, C083S671000

Reexamination Certificate

active

07017461

ABSTRACT:
A device for consecutively forming one or more notches in a first surface and one or more notches in second surface of a hollow workpiece. The notching device including a first die and a second die that is fixed relative to the first die; and a shiftable punch having opposing first and second cutting surfaces. The punch shiftable between a first punching position and a second punching position and aligned such that the first cutting surface and the first die cooperating to form a first notch when the punch proceeds towards the first position, and the second cutting surface and the second die cooperating to form a second notch when the punch proceeds towards a second position.

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