Sealing apparatus applied to a vertical type forming, filling an

Details Sealing apparatus applied to a vertical type forming, filling an Sealing apparatus applied to a vertical type forming, filling an

1999-06-16

2000-12-05

Johnson, Linda

Package making

Progressively seamed cover web or web folds

With closing of web between package units

533742, 533743, 533759, 533762, B65B 906, B65B 5126

Patent

active

061550302

ABSTRACT:
A sealing apparatus applied to a vertical type flexible package forming, filling and closing machine includes a heater block arranged near a filling tube and having a heating ridge, and a web guide attached to the outer surface of the filling tube and having a pair of guide rails, and the heating ridge cooperates with the pair of guide rails to hold the joint of a traveling package web therebetween in such a manner that the joint is elastically deformed in convex form in cross section, whereby the joint is concentratedly applied with heat and thus is heat-sealed.

REFERENCES:
patent: 4919740 (1990-04-01), Kreager
patent: 5561966 (1996-10-01), English

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