Apparatus for the manufacture of block-sealed side-gussetted bag

Details Apparatus for the manufacture of block-sealed side-gussetted bag Apparatus for the manufacture of block-sealed side-gussetted bag

1986-12-17

1988-08-30

Olszewski, Robert P.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493204, 493256, 493923, 425290, 4253021, B31B 2380, B31B 2724

Patent

active

047673915

ABSTRACT:
Bags are manufactured from a tubular web of thermoplastic film. An air injector periodically inflates the film whereupon it contacts cooperating vacuum plates. One of the plates has a cutting die which cuts a tab in the film which in turn provides an ingress for the injected air. The film is then sealed and severed to form the bags, which are then formed into a block. The tab then serves as an opening to facilitate the removal of individual bags from the block.

REFERENCES:
patent: 3214312 (1965-10-01), Gattrugeri
patent: 3446121 (1969-05-01), Achelpohl
patent: 3988970 (1976-11-01), Hanson et al.
patent: 4342564 (1982-08-01), Lehmacher
patent: 4559199 (1985-12-01), Jensen

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