Method and apparatus for guiding a zippered film in form, fill a

Details Method and apparatus for guiding a zippered film in form, fill a Method and apparatus for guiding a zippered film in form, fill a

1990-02-01

1991-02-19

Spruill, Robert L.

Package making

Methods

Enclosing contents within progressively formed web means

53551, 53389, 493302, 493923, B65B 908, B65B 4112, B31C 1300

Patent

active

049932128

ABSTRACT:
A forming shoulder for a forming and filling tube of a form, fill and seal machine has a skirt provided with a guide channel for a longitudinal zipper area of a package making material sheet running over the forming shoulder, thereby retaining the zipper area and the sheet against lateral drifting.

REFERENCES:
patent: 3815317 (1974-06-01), Toss
patent: 4355494 (1982-10-01), Tilman
patent: 4625496 (1986-12-01), Ausnit
patent: 4646511 (1987-03-01), Boeckmann et al.
patent: 4666423 (1987-05-01), Herrington
patent: 4704842 (1987-11-01), Boeckmann et al.
patent: 4790126 (1988-12-01), Boeckmann
patent: 4840012 (1989-06-01), Boeckmann

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