Rotary die blade member bending method, and rotary die blade...

Details Rotary die blade member bending method, and rotary die blade... Rotary die blade member bending method, and rotary die blade...

2006-02-21

2006-02-21

Crane, Daniel C. (Department: 3725)

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

C072S377000, C072S379200, C076S107800

Reexamination Certificate

active

07000442

ABSTRACT:
Method and apparatus for making a rotary die blade from a straight blade blank to be conformable to the contour of the rotary die block include inserting a blade blank between a first press face of a first presser and a second press face of a second presser; and compressing the blade blank by urging either of the first press face or the second press face to the other, thereby elongating the blade blank along its length; wherein the compressive force is differentiated such that a stronger compressive force is applied to the peripheral portion of the blade blank than the inner portion thereof.

REFERENCES:
patent: 151544 (1874-06-01), Moore
patent: 174388 (1876-03-01), Taplin
patent: 319442 (1885-06-01), Bellamy
patent: 877315 (1908-01-01), Fehr
patent: 1452499 (1923-04-01), Flinn
patent: 2414178 (1947-01-01), Sprinkle
patent: 2968974 (1961-01-01), Everett
patent: 3926031 (1975-12-01), Neilsen
patent: 5251514 (1993-10-01), Rhodarmer et al.

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