Screw cap for bottle-type containers

Details Screw cap for bottle-type containers Screw cap for bottle-type containers

1980-03-13

1982-04-27

Ross, Herbert F.

Bottles and jars

Closures

Frangible member or portion

B65D 5512

Patent

active

043266398

ABSTRACT:
A screw cap which can be screwed onto the thread of a bottleneck is provided with an outward-projecting collar joined to the cap via shearable links, said shearable links having different flexibility are arranged and formed in such a way that the shearable links of one group can be sheared off only after an angular torsion of the cap relative to the collar which is several times greater than that required for shearing the links of the other group.

REFERENCES:
patent: 3463341 (1969-08-01), Fields
patent: 3747793 (1973-07-01), Wassilieff
patent: 4062466 (1977-12-01), Conti

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