Quick opening pinch seal bag

Details Quick opening pinch seal bag Quick opening pinch seal bag

1981-12-08

1988-05-17

Fidei, David T.

Special receptacle or package

With pallet feature

Knockdown or collapsible type

206604, 206605, 206610, 383 66, 383120, B65D 3316

Patent

active

047444665

ABSTRACT:
The present invention provides a heavy-duty, multi-wall or multi-ply bag having gusseted sides and overlapping upper sealing edges of the pinch seal type, wherein a quick-opening construction is provided for such bag. The quick-opening construction consists of (a) a slotted portion formed of one or more slots in the outer wall of the bag, within the gusset and adjacent the upper sealed portion of the bag, and (b) a transverse perforated section on the inner wall or walls (plies) of the bag and disposed substantially intermediate the slots in the outer wall. The outer wall may be torn by fingers engaging the slots, and the inner wall or walls may be penetrated by fingers entering the perforations. The entire upper corner of the bag may be hand opened to provide a funnel for quick delivery of the contents.

REFERENCES:
patent: 1869313 (1932-07-01), Mackay
patent: 2287893 (1942-06-01), Lundberg
patent: 2593328 (1952-04-01), Meaker
patent: 2844298 (1958-07-01), Tamarin
patent: 3168233 (1965-02-01), Ignell
patent: 3291374 (1966-12-01), Lepisto et al.
patent: 3497131 (1970-02-01), Tracy
patent: 3910488 (1975-10-01), Goodrich
patent: 4197949 (1980-04-01), Carlsson

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