Chain of laterally interconnected bags

Details Chain of laterally interconnected bags Chain of laterally interconnected bags

1985-01-22

1986-04-22

Garbe, Stephen P.

Flexible bags

Plural

B65D 3000

Patent

active

045847061

ABSTRACT:
An improved method and mechanism for forming a chain of laterally interconnected plastic bags which have confronting releasably interlocking rib and groove profile elements on the inner confronting wall surfaces or at the edge of said surface including advancing a tube or a folded film of plastic bag material having interlocked rib and groove profile elements, forming spaced spot seals at the profile element and alternately at another location to permanently join the layers of material and permanently join the rib and groove elements over the area of the spot, forming lateral seals extending the width of the material at the location of the spot seals to provide side seams for the adjacent bags, and cutting through the material along the center of the seam to partially separate the bags with the cuts extending a predetermined distance partially into the spot seals to control their remaining strength and control the separation force needed to separate adjacent bags.

REFERENCES:
patent: 3358823 (1967-12-01), Paxton
patent: 3559874 (1971-02-01), Titchenal
patent: 3618286 (1971-11-01), Membrino
patent: 3699746 (1972-10-01), Titchenal et al.
patent: 3791573 (1974-02-01), Titchenal et al.

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