Folder with gradual guide assembly and method

Details Folder with gradual guide assembly and method Folder with gradual guide assembly and method

1991-07-03

1993-07-13

Look, Edward K.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493427, 493429, 493432, 270 49, B31F 108, B42C 100

Patent

active

052268713

ABSTRACT:
A folder (58) of the type having a folding cylinder (16) cooperating with a jaw cylinder (20) to cut and fold a ribbon of paper (14) into a folded product (14') provided with a guide assembly (60) with a guide surface defined by a nonconcentric guide with a convex section (64) and a convex section (74) joined together end-to-end to form a generally S-shaped or approximately cubical parabolic guide surface which conforms to the natural flow shape of the product (14') for minimum interference therewith to reduce the formation of dog-ears.

REFERENCES:
patent: 3096977 (1963-07-01), Winkler et al.
patent: 3758102 (1973-09-01), Munn
patent: 3918698 (1975-11-01), Coast
patent: 4494949 (1985-01-01), Baley
patent: 4666139 (1987-05-01), Filewich
patent: 4697805 (1987-10-01), Herb
patent: 4807865 (1989-02-01), Kobler et al.
patent: 4817932 (1989-04-01), Stab
patent: 4893803 (1990-01-01), Peterson
patent: 5013020 (1991-05-01), Stoll
patent: 5092833 (1992-03-01), King et al.

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