Pilfer-proof closure with tear-away holding claws

Details Pilfer-proof closure with tear-away holding claws Pilfer-proof closure with tear-away holding claws

1984-10-09

1986-01-07

Hall, George T.

Bottles and jars

Closures

Having warning means or means impeding closure removal

215253, 215256, B65D 5502

Patent

active

045629315

ABSTRACT:
The invention concerns an original-seal closure means made of plastic and for threaded mouths at containers, in particular bottles. The closure means includes a screw cap to which a hood is fastened with axial play. Studs are present at both the hood and the screw cap, which can be engaged and disengaged within the said axial play and which act as drive means. To secure the original seal, the screw cap is provided with tear-off elements which engage by means of claws underneath the retainer lip. When the mouth is sealed, the claws are held in this position by the hood. When the closure is opened the first time, the tear-off elements are perforce torn off. In additional child-proof design, a set of studs is designed in such a manner that they shall always act as drive means during the screwing shut process while they shall act thusly during unscrewing only if in addition to the torque an axial force is exerted toward the mouth.

REFERENCES:
patent: 3944102 (1976-03-01), Grau
patent: 4330067 (1982-05-01), Deuggen
patent: 4474301 (1984-10-01), Davis

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