Flexible bags – Lifting or suspending element – Unitary with bag
Patent
1987-01-07
1988-06-14
Marcus, Stephen
Flexible bags
Lifting or suspending element
Unitary with bag
383101, 383109, B65D 3301, B65D 3308
Patent
active
047508469
ABSTRACT:
A container includes an outer load carrying bag or container with lifting loop(s) and at least one filling opening, and a liner having two sides closed with welds spaced from the inner side edges to form skirts which allow air in the liner to escape through openings between the welds. The welds are interrupted and overlapped by a distance a, preferably such that 0%<a<50% of the liner's total side length. The liner is placed in the outer container such that the welded seams with the skirts are parallel to the vertical axis of the container and are fastened to side seams thereof. The liner has an opening for filling of bulk material, and it may have a gusset which preferably has a height of up to 1/4 of the flat width of the liner between the welds.
REFERENCES:
patent: 3085737 (1963-04-01), Horton
patent: 3394871 (1968-07-01), Williams et al.
patent: 3961655 (1976-06-01), Nattrass et al.
patent: 4132347 (1979-01-01), Saito
patent: 4223709 (1980-09-01), Myklebust
patent: 4470153 (1984-09-01), Kenan
Wall Street Journal, Eastern Edition, Mar. 12, 1964, p. 6.
Myklebust Eirik
Omdal Bjarne
Marcus Stephen
Norsk Hydro a.s.
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