Assembly system for container flexible end closures

Details Assembly system for container flexible end closures Assembly system for container flexible end closures

1975-06-11

1977-09-13

Coan, James F.

93 441R, B31B 190

Patent

active

040474739

ABSTRACT:
A system for assembling flexible end closures for containers, the closure itself including a peelable sealing membrane, with a folded pull tab, and a plastic overcap separably combined as a single unit for application to the container. Apparatus cuts the individual sealing membranes from a continuous web for deposit thereof on individual holders which vacuum retain the membranes during movement through stations which fold an integra pull tab in overlying relation to each membrane for subsequent reception within an associated overcap applied to the holder along the path of movement thereof, the combined membrane and overcap ultimately being discharged for later application to a container as a closure therefor. A central manifold controls air flow to and away from the individual holders so as to selectively retain and discharge the closure forming membrane and overcap components.

REFERENCES:
patent: 1258493 (1918-03-01), Stark et al.
patent: 2282959 (1942-05-01), Gibbs
patent: 2441876 (1948-05-01), Fleisch
patent: 3352268 (1967-11-01), Koll
patent: 3460314 (1969-08-01), Keas
patent: 3641959 (1972-02-01), Hurst
patent: 3734044 (1973-05-01), Asmus et al.
patent: 3961566 (1976-06-01), Westphal et al.

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