Collapsible dispensing tube with an orifice sealed with multi-la

Details Collapsible dispensing tube with an orifice sealed with multi-la Collapsible dispensing tube with an orifice sealed with multi-la

1985-10-28

1988-06-14

Rolla, Joseph J.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222541, 156 69, B67B 724

Patent

active

047506423

ABSTRACT:
A collapsible dispensing tube has a multi-layer sheet material sealed over its dispensing orifice to provide a hermetically sealed tube. The multi-layer sealant sheet comprises two layers of metal foil separated by a polymer layer firmly adhered to the metal foil layers. A polymeric layer is adhered to the outer surface of one of the metal foil layers and serves to seal the tube orifice. The laminated sheet may be sealed across the orifice by the application of radio-frequency energy.

REFERENCES:
patent: 2671577 (1954-03-01), Remington et al.
patent: 2982457 (1961-05-01), D'Alelio
patent: 4442129 (1984-04-01), Niwa et al.
patent: 4657151 (1987-04-01), Cabernoch

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