Plastic bag package

Details Plastic bag package Plastic bag package

1984-08-17

1986-02-04

Dixson, Jr., William T.

Special receptacle or package

For roll or reel

Concatenated articles

206494, 206554, 206824, 206820, B65D 8566

Patent

active

045679843

ABSTRACT:
A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensioning system surrounds the drum and is adjustable to compensate for different drum diameters. The sealed film passes over a chill roll after leaving the drum-blanket assembly and is drawn over folding boards by pull rolls. The sealed and folded film is then perforated by a fly knife and is preferably also cut on the sides to produce a connected series of bags which may easily be separated from one another to make the bags suitable for easy dispensing packages. A variator assembly may also be provided to insure a proper skirt length between the cut-perforation and the bag seal.

REFERENCES:
patent: 3613142 (1971-10-01), Claney, Jr.
patent: 3826361 (1974-07-01), Heckrodt
patent: 3996093 (1976-12-01), Winnemoller
patent: 4453649 (1984-06-01), Origuchi
patent: 4487318 (1984-12-01), Roen

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