Bag support/spreader for vertical form, fill and seal machines

Details Bag support/spreader for vertical form, fill and seal machines Bag support/spreader for vertical form, fill and seal machines

1990-03-15

1991-10-08

Culver, Horace M.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

533745, 533893, B65B 920, B65B 5130, B65B 4114, B65B 5114

Patent

active

050542702

ABSTRACT:
In a form, fill and seal package or bag making machine having a vertical forming and filling tube and cross-sealing and pull down mechanism below the discharge end of the tube, a mechanism by which the filled bag is supportingly manipulated during cross-sealing to avoid bag contents weight induced stretch stress damage to the thermosealed top edge of the filled bag, and avoiding bag contents weight caused pleats and tucks in the bag body film, and redistributing the filled bag contents to avoid central sagging of the filled bag.

REFERENCES:
patent: 3027695 (1962-04-01), Leasure
patent: 3052074 (1962-09-01), Dreeben
patent: 3552081 (1971-01-01), Leasure
patent: 3738080 (1973-06-01), Reil
patent: 4079662 (1978-03-01), Puccetti et al.
patent: 4215520 (1980-08-01), Heinzer et al.
patent: 4378666 (1983-04-01), Onishi
patent: 4840012 (1989-06-01), Boeckmann

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