Peel-top container assembly system

Details Peel-top container assembly system Peel-top container assembly system

1977-05-12

1978-10-31

Keenan, Michael J.

113 1E, 113 14R, 113121R, B21D 5144

Patent

active

041227905

ABSTRACT:
A system for forming and mounting end closures for peel-top containers, each closure including a peelable sealing membrane, with a folded pull tab, and a separate plastic overcap. The individual sealing membranes are cut from a continuous web and deposited directly on the open ends of cans or containers being fed in a continuing line. Each membrane is retained in properly oriented association with the corresponding container, by adhesive tacking or through a partial vacuum generated within the container, until such time as the container supported membrane is engaged by a chuck to effect a positive sealing of the membrane to the container. After a sealing of the membrane to the container, the container proceeds through a cycle wherein the tab on the membrane is laterally bent, the overcap is applied, and the container with completed end closure is discharged. Embossing of each membrane is normally selectively done so as to occur only over the area thereof inward of the peripheral portion which engages the container.

REFERENCES:
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patent: 2906225 (1959-09-01), Evans
patent: 3383256 (1968-05-01), Carbone
patent: 3429102 (1969-02-01), Hefner
patent: 3734044 (1973-05-01), Asmus
patent: 3908572 (1975-09-01), Johnson et al.
patent: 3959061 (1976-05-01), Renck et al.
patent: 3961566 (1976-06-01), Westphal et al.
patent: 3977340 (1976-08-01), Geeson
patent: 4047473 (1977-09-01), Fletcher et al.

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