Progressive stamping die

Metal deforming – With randomly-actuated stopping – Responsive to condition of work or product

Reexamination Certificate

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Details

C072S336000, C072S334000, C072S404000

Reexamination Certificate

active

07055353

ABSTRACT:
A progressive stamping die system and method of operation providing dimensionally accurate flat stamped parts. A biasing mechanism is provided in actual alignment with a coin punch member in order to accurately control the configuration and planar accuracy of the stamped parts being formed.

REFERENCES:
patent: 3263472 (1966-08-01), Arndt et al.
patent: 3338084 (1967-08-01), Stegman, Sr.
patent: 3381514 (1968-05-01), Starita et al.
patent: 4205548 (1980-06-01), Bothner et al.
patent: 4733552 (1988-03-01), Lefils
patent: 4839952 (1989-06-01), Yokoyama
patent: 5016461 (1991-05-01), Walker et al.

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