Food or edible material: processes – compositions – and products – Packaged or wrapped product – Having destructive type opening along scored or perforated line
Patent
1989-03-23
1991-06-25
Czaja, Donald E.
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Having destructive type opening along scored or perforated line
206608, 206610, 383 61, 383 63, 383 93, 383 95, 426121, 426123, B65D 3316
Patent
active
050265636
ABSTRACT:
A plastic film bag for foodstuffs or the like having opposed film bag walls joined at their edges and forming a mouth between the walls at one side, reclosable fastener strips between the walls at the bag mouth having facing releasably interlocking profiles thereon with a base for each of the strips, each base web having an outer portion and an inner portion which is adjacent the contents of the bag, one inner portion bonded to the wall of the bag and the other inner portion substantially unattached, the inner portions of the webs being continuous with a perforate tear line therethrough, a sealing strip over the tear line, the outer edges of the film at the mouth bonded to each other above the fastener strips so that the outer edge can be cut leaving pull flanges with the inner portions of the base webs sealing the interior of the bag until the tear lines are torn.
REFERENCES:
patent: 2546698 (1951-03-01), Nicolle
patent: 3181583 (1965-05-01), Lingenfelter
patent: 3473589 (1969-10-01), Gotz
patent: 3780781 (1973-12-01), Uramoto
patent: 3827472 (1974-08-01), Uramoto
patent: 3991801 (1976-11-01), Ausnit
patent: 4003184 (1977-01-01), Shiu
patent: 4191230 (1980-03-01), Ausnit
patent: 4285376 (1981-08-01), Ausnit
McDonald Daniel P.
Van Erden Donald L.
Czaja Donald E.
Workman D.
Zip-Pak Incorporated
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