Resealable gas impermeable sealing assembly

Details Resealable gas impermeable sealing assembly Resealable gas impermeable sealing assembly

2005-04-12

2005-04-12

NGO, Lien (Department: 3727)

Receptacles

Closures

Superposed closures for common opening

C215S232000

Reexamination Certificate

active

06877630

ABSTRACT:
Larger gas tight containers for products such as carbonated or pressurised drinks require a resealable sealing assembly. The gas leakage through the assembly in its ex-factory sealing condition determines the shelf life of the product. A sealing assembly provides a foil (8) across a neck (10) of the bottle. The foil is supported in the ex-factory sealing condition by a plate (40) of a plug (36) which depends from an over cap (4). The over cap is screwed to an outer wall of a tubular spout (6) that surrounds the neck (10) of the bottle. In the resealed condition the plug can be screwed deeper into the neck so that a secondary seal is formed between the plate and the neck.

REFERENCES:
patent: 4280634 (1981-07-01), Wiesenberger et al.
patent: 4722449 (1988-02-01), Dubach
patent: 4754889 (1988-07-01), Debetencourt
patent: 4795043 (1989-01-01), Odet et al.
patent: 4869399 (1989-09-01), Dubach
patent: 2766464 (1997-07-01), None
patent: 2171680 (1986-09-01), None
patent: 2350105 (2000-11-01), None

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