Corrugating apparatus and process

Details Corrugating apparatus and process Corrugating apparatus and process

1979-05-02

1981-02-24

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156204, 156218, 156462, 156474, 493440, 425396, B29D 2310

Patent

active

042525918

ABSTRACT:
Process and apparatus are provided for forming corrugated filter sheet by folding a long strip of sheet material into corrugations extending longitudinally of the strip, press-bending the sheet along the longitudinal fold lines of the intended corrugations; and gradually drawing in the sheet from the sides towards the center, while pushing the sheet out from each side along the fold lines, so as to form the intended corrugations, reducing the width of the sheet according to the height and width of the corrugations.

REFERENCES:
patent: 1402584 (1922-01-01), Elrod
patent: 2001709 (1935-05-01), Davidson
patent: 3038718 (1962-06-01), Balsam
patent: 3853529 (1974-12-01), Boothe et al.
patent: 3948712 (1976-04-01), Stannard
patent: 3956055 (1976-05-01), Duff et al.

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