Draw-string carrying bag

Details Draw-string carrying bag Draw-string carrying bag

1988-05-09

1989-11-07

Little, Willis

Flexible bags

With closure

Gathered bag mouth

383 75, 383 7, B65D 3328

Patent

active

048787647

ABSTRACT:
To increase the carrying capacity of foil bags, for example plastic foil bags, in which the mouth (2) of the bag is surrounded by seams (3, 4) forming ducts through which pull cores (9, 10; 11) are passed, openings (14) formed in the seams are so shaped that the edges of the openings adjacent a fold line (13) of the seams have mutually approaching or converging or projecting regions (17) which, when the pull string or cords are pulled out of the openings, cause the approaching regions to fold back and form reinforcing collars, thus preventing tearing of the seams by preventing occurrence of a notch effect, and, by accumulating material upon corrugating or pleating of the material when a load is being placed in the bag, to provide an accumulation of material at the highest stress point.

REFERENCES:
patent: 3010640 (1961-11-01), Kugler
patent: 3653583 (1972-04-01), Meyer

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