Method of stacking flat bags or sacks which are folded about at

Details Method of stacking flat bags or sacks which are folded about at Method of stacking flat bags or sacks which are folded about at

1976-02-03

1977-07-19

Coan, James F.

93 84TW, 93 93HT, B31B 126

Patent

active

040361160

ABSTRACT:
To form stacks of flat folded bags, each bag comprising a mouth portion reinforced by at least one additional ply of bag material, the mouth portion and the base portion are both folded onto the central bag portion about respective fold lines so that their adjacent edges stop short of one another or just touch. The mouth portion is folded about a fold line disposed beyond the reinforcement. The base portion is either folded once about a fold line disposed inwardly of a gusset formed in the base or, if there is no gusset, in Z formation about two fold lines.

REFERENCES:
patent: 1846542 (1932-02-01), Budd
patent: 3000549 (1961-09-01), Stange et al.
patent: 3142435 (1964-07-01), Stange et al.
patent: 3199766 (1965-08-01), Vineberg

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