Punch

Details Punch Punch

1984-08-22

1986-08-26

Yost, Frank T.

Cutting

Tool or tool with support

Cutting couple type

83689, 83691, B21D 2814

Patent

active

046075577

ABSTRACT:
A punch which includes a notching tool and a separating which are adapted to punch at least one notch and a separating gap in each effective working stroke of the punch. A separating tool is formed by at least two independently disposed separating punches which are spaced from each other by a distance which is equal to or greater than a width of a web formed between two punched notches. Likewise, the notching tool may be in the form of two independent spaced notching punches.

REFERENCES:
patent: 407242 (1889-07-01), Quinn
patent: 806362 (1905-12-01), Porter et al.
patent: 843875 (1907-02-01), Dunham
patent: 1767492 (1930-06-01), Valentine
patent: 1788023 (1931-01-01), Hochreiner
patent: 3273438 (1966-09-01), Brook
patent: 3500710 (1970-03-01), Taber
patent: 3524370 (1970-08-01), Thompson

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