Snap closure with original seal safety

Details Snap closure with original seal safety Snap closure with original seal safety

1988-12-22

1990-05-01

Marcus, Stephen

Bottles and jars

Closures

Frangible member or portion

215305, 215237, 215304, B65D 4146

Patent

active

049211137

ABSTRACT:
A snap closure with original seal safety is particularly suited for bottles with bulging rim areas on the bottle neck. The original safety sealing takes place by means of a release element, which comprises a pressing element which is bounded on both sides by weak points. The release element forms a portion of the circumferential wall. In order that the release element not be torn further than desired, the weak points proceeding in the axial direction of the closure reach only into the area of an annular bulge positioned on the internal surface of the circumferential wall. The release element itself, which has at least one corrugation, is connected with the circumferential wall by means of a film hinge, and can pivot by 90 degrees upon destruction of the weak points.

REFERENCES:
patent: 801282 (1905-10-01), Weissenthanner
patent: 3382997 (1968-05-01), Tsuji

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