Side seal closure

Details Side seal closure Side seal closure

1980-01-21

1982-03-30

Norton, Donald F.

Bottles and jars

Closures

With pressure-responsive seal

215341, B65D 4104

Patent

active

043220118

ABSTRACT:
The invention comprises a threaded plastic closure for a container for pressured fluids, such as a carbonated beverage bottle. The panel portion of the closure abuts the top of the bottle neck or finish to form a top seal, and the wall portion has an internal annular sealing rib for creating a seal on an outside cylindrical portion of the bottle finish. The connecting material between the side seal rib and the top seal of the closure is deformed outwardly, away from the finish and is of reduced wall thickness to provide a flexible connection between the top seal and the side sealing rib.

REFERENCES:
patent: 3272369 (1966-09-01), Grimsley
patent: 3595418 (1971-07-01), Adcock
patent: 4209102 (1980-06-01), Dunn

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