Screw cap with guarantee strip for container

Details Screw cap with guarantee strip for container Screw cap with guarantee strip for container

1984-11-05

1985-07-23

Shoap, Allan N.

Bottles and jars

Closures

Shrinkable closure, fastener, or seal

215252, B65D 4124

Patent

active

045304360

ABSTRACT:
Below the closure member 1, the screw cap has a closing band, whose wall thickness is less than that of the closure member. The heat-shrunk guarantee strip is fitted to this closing band by means of webs and a connecting piece. The guarantee strip has an interruption and a predetermined breaking element bridging the latter. Due to the fact that the connecting piece forms a rigid area with the end of the guarantee strip, on unscrewing the cap, under the action of the circumferential forces widening the guarantee strip, firstly the predetermined breaking element and then the adjacent webs tear. The guarantee strip always remains connected to the closure member and does not adhere to the bottle, which would have a disadvantageous effect at the time of reuse.

REFERENCES:
patent: 4305516 (1981-12-01), Perne et al.
patent: 4345692 (1982-08-01), Obrst et al.
patent: 4458821 (1984-07-01), Ostrowsky
patent: 4458822 (1984-07-01), Ostrowsky
patent: 4461390 (1984-07-01), Csaszar
patent: 4479586 (1984-10-01), Csaszar
patent: 4480761 (1984-11-01), Aichinger

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