Steering, joining and guiding mechanism for zippered film

Details Steering, joining and guiding mechanism for zippered film Steering, joining and guiding mechanism for zippered film

1986-07-25

1988-03-01

Spruill, Robert L.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53567, 53547, 226 17, B65B 908

Patent

active

047277092

ABSTRACT:
A steering, joining and guiding mechanism is disclosed for joining together opposing rib and groove fastener elements on a traveling continuous bag film. The steering, joining and guiding mechanism includes a pair of opposing press rolls. The longitudinal axis of each of the press rolls is offset from the direction of travel of the bag film. The press rolls are offset from about 2.degree. to about 30.degree. from a line perpendicular to the direction of travel of the bag film, and are preferably offset at about 5.degree. from the direction of travel of the bag film.

REFERENCES:
patent: 1995462 (1935-03-01), Tandel
patent: 2146308 (1939-02-01), Maxfield
patent: 3807118 (1974-04-01), Pike
patent: 3815317 (1974-06-01), Toss
patent: 4007865 (1977-02-01), Crandall
patent: 4201132 (1980-05-01), Zimmer et al.
patent: 4355494 (1982-10-01), Tilman
patent: 4582549 (1986-04-01), Ferrell

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