Reinforced wall bottom closure construction for a bulk bag

Details Reinforced wall bottom closure construction for a bulk bag Reinforced wall bottom closure construction for a bulk bag

1995-05-30

1996-07-16

Garbe, Stephen P.

Flexible bags

With closure

For access opening in bag bottom

383 24, 383 41, B65D 3336, B65D 3338

Patent

active

055360866

ABSTRACT:
A reusable discharge closure construction for the bottom wall of a bulk bag having a large outlet opening of diameter D includes an inner flexible discharge tube having a diameter at least as large as D and a short, flexible outer closure tube which has an effective length less than the opening radius D/2. There is a support ring strong, heavy webbing having a diameter at least as large as D; one end edge of the support ring is sewn to the bottom wall of the bulk bag and the other end edge of the ring is sewn to the tubes. A relatively flat closure is effected by tying the discharge tube closed, stuffing it into the bag interior, and then closing the closure tube by a drawstring mounted in its outer end.

REFERENCES:
patent: 3789897 (1974-02-01), Saito
patent: 3961655 (1976-06-01), Nattrass et al.
patent: 4194652 (1980-03-01), Williamson et al.
patent: 4364424 (1982-12-01), Nattrass
patent: 4646357 (1987-02-01), Nattrass
patent: 4917266 (1990-04-01), Kellenberger et al.
patent: 5340218 (1994-08-01), Cuthbertson
patent: 5423611 (1995-06-01), Sherrard

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