Zipper guide and spreader device for form, fill and seal machine

Details Zipper guide and spreader device for form, fill and seal machine Zipper guide and spreader device for form, fill and seal machine

1990-01-22

1990-12-04

Spruill, Robert L.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53373, 493302, 493923, B65B 706, B65B 908, B31C 1300

Patent

active

049743953

ABSTRACT:
A zipper guide and spreader device for form, fill and seal apparatus comprises a package material guiding and spreading mechanism wherein a pair of articulated members have zipper guideways. The members are hingedly connected together and one of the members is hingedly connected to a fixed support. An actuator operates the articulated members from a biased relaxed position into an articulated material-spreading position wherein the material is spread for eliminating wrinkles before edge sealing across the material below the discharge end of the forming and filling tube.

REFERENCES:
patent: 2720680 (1955-10-01), Gerow
patent: 3538676 (1970-11-01), Runo et al.
patent: 4534159 (1985-08-01), Kelly
patent: 4829745 (1989-05-01), Behr et al.
patent: 4829746 (1989-05-01), Schmidt et al.
patent: 4869048 (1989-09-01), Boeckmann

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