Flexible container

Details Flexible container Flexible container

1984-08-07

1986-04-22

Garbe, Stephen P.

Flexible bags

Lifting or suspending element

Unitary with bag

383121, 383126, 383907, B65D 3306, B65D 3316

Patent

active

045847053

ABSTRACT:
A flexible container for filling, transport and storage of bulk material is made from at least one piece of base material. The bottom of the container is formed from at least four paired, preferably equally large, flaps which are direct extensions of the container side walls. The bottom flaps are formed by cut lines in the piece of material, and the angles .alpha. and .beta. of alternate flaps converge toward the center of the bottom. The sum of top angles .alpha. and .beta. of the flaps is less than 360.degree., such that the container bottom formed by joints of the flaps is downward slightly cone or funnel shaped when the container is filled. The sum of the angles .alpha. and .beta. of the flaps preferably is between (240.degree.-280.degree.) and 360.degree.. The container bottom will be substantially square or rectangular, depending on whether .alpha.=.beta. or .alpha..noteq..beta.. Each of the bottom seams can terminate at a distance from the center of the bottom such that there are no seams in a minor area around the center, and in this area there can be arranged a discharge spout.

REFERENCES:
patent: 3119548 (1964-01-01), Cook et al.
patent: 4136723 (1979-01-01), Skaadel et al.
patent: 4223709 (1980-09-01), Myklebust
patent: 4269247 (1981-05-01), Omdal
patent: 4312392 (1982-01-01), Sekiguchi
patent: 4521911 (1985-06-01), Vance

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