Bottles and jars – Closures – Frangible member or portion
Reexamination Certificate
2000-02-15
2001-08-21
Shoap, Allan N. (Department: 3727)
Bottles and jars
Closures
Frangible member or portion
C215S044000, C215S045000, C215S258000, C215S321000, C215S334000
Reexamination Certificate
active
06276544
ABSTRACT:
DESCRIPTION
This application claims priority to Italian Patent Application Number 97A001310 filed on Jun. 3, 1997 and is a National Stage PCT Application from Serial Number PCT/EP98/03240.
The present invention relates to a security closure f or a bottle comprising a cap having internal threading mating with external threading on the bottle, the cap being connected, by means of a line of weakening, to a sleeve restrained angularly and axially on the bottle.
As is known, there is a need to provide evidence that a bottle has been opened so that someone does not purchase a bottle which has previously been opened by an unauthorized person.
Closures are known, in which the cap and the sleeve are formed integrally from aluminium sheet and are fitted on the bottle together and made to adhere to the bottle by rolling, causing the cap to marry with the threading of the bottle, which is often coarse threading, particularly if the bottle is molded from glass and, at the same time, restraining the sleeve on the bottle.
The fitting of these closures requires complex tooling. Moreover, they do not fully satisfy the user since, starting from the first time they are unscrewed and on every subsequent occasion when they are screwed up and unscrewed, the cap jams and sticks and in any case is manipulated with far front the desirable smoothness.
Closures in which the cap and the sleeve are formed integrally of plastics material have also been proposed. In these closures, the cap is manipulated with convenient smoothness during unscrewing and screwing-up. The fitting of these closures, however, is labourious and requires complex tooling which has to apply the single element of plastics material to the bottle by axial fitting accompanied by rotation with predetermined synchronized coordination so that the threading of the cap can be screwed onto the threading of the bottle.
The problem upon which the present invention is based is that of providing a security closure of the type specified which has structural and functional characteristics such as to overcome the problems mentioned above with reference to the prior art.
This problem is solved by a closure of the type specified which is characterized in that the internal threading has a predetermined large number of starts, and in that lead-in means are formed in the sleeve and are mated with matching lead-in means on the bottle in order to orient the cap and the sleeve angularly relative to the bottle when the cap and the sleeve are fitted axially on tie bottle.
REFERENCES:
patent: 3850328 (1974-11-01), Guala
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patent: 4458817 (1984-07-01), Guala
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patent: 5131549 (1992-07-01), Battegazzore
patent: 5135124 (1992-08-01), Wobser
patent: 5251769 (1993-10-01), Battegazzore
patent: 5593055 (1997-01-01), Repp et al.
patent: 5628417 (1997-05-01), Van Halteren
patent: 5740932 (1998-04-01), Battegazzore
patent: 5927531 (1999-07-01), Kuzma et al.
patent: 1517037 (1968-06-01), None
patent: 2200619 (1988-08-01), None
Guala Closures S.p.A.
Hylton Robin A.
Shoap Allan N.
Sofer & Haroun LLP
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