Method and apparatus for producing a plurality of continuous bag

Details Method and apparatus for producing a plurality of continuous bag Method and apparatus for producing a plurality of continuous bag

1991-04-11

1991-11-12

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493198, 533851, 225100, B31B 2314, B31B 2716

Patent

active

050644084

ABSTRACT:
A method and apparatus for producing continuous bags, each bag having an opening on one side from a length of continuous tubing is disclosed. The bags are produced along a direction of production and each bag produced has a sealed end and line of perforation opposite to the sealed end. Each bag is positioned with its sealed end immediately adjacent to the line of perforation of an adjacent bag. The bags are produced by advancing a length of continuous tubing along the direction of production and sealing the tubing at a first location by a sealing means to form a sealed end of a first bag and substantially simultaneously perforating the tubing at a second location immediately adjacent to the sealed end of the first bag by a perforating means to form a line of perforation of a second bag. The second bag is immediately adjacent to the first bag. One layer of the tubing is then severed at the line of perforation without substantially severing the other layer by moving the upper layer relative to the other layer in a direction opposite to the direction of production. Lastly, the method comprises the step of advancing the tubing along the direction of production to form the plurality of continuous bags.

REFERENCES:
patent: 3254828 (1966-06-01), Lerner
patent: 3269087 (1966-08-01), Cloud et al.
patent: 3579948 (1971-05-01), Lerner
patent: 3743567 (1973-07-01), Abler
patent: 4500307 (1985-02-01), Bridgeman
patent: 4694638 (1987-09-01), Maddux, Jr. et al.

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