Screw-on closure for a recipient

Abstract

A screw-on cap (31) for a recipient including a retention flap (33) and a locking device comprising a first rib and a second rib (16), such that in the first screwing on of the screw-on closure (31) the retention flap (33) is deviated so as to be able to pass between the first rib and the second rib (16) and in the final position, the retention flap (33) butts against a contact surface of the second rib (16) in a secure and reliable manner.

Description

OBJECT OF THE INVENTION [0001] The present invention refers to a screw-on closure or cap for closing a recipient. [0002] More specifically, the present invention refers to a screw-on cap comprising at least one detachable retention flap which can be screwed on or screwed off an outer screw thread belonging to a container for the purpose of preventing undue tampering of the contents stored inside the recipient. STATE OF THE ART [0003] Different sealing systems suitable for closing a recipient are currently known. Said sealing systems have the function of assuring the tamper-resistance of the contents stored in the recipient or container. [0004] A sealing system usually includes a tamper-resistant band joined to a screw-on cap or closure. Said bands, just like the caps to which they are incorporated, are cylindrical and are vertically joined to the also cylindrical body of the cap or closure in the lower portion thereof and are provided with different internal stop profiles assuring, ...

AI Technical Summary

Benefits of technology

[0002] More specifically, the present invention refers to a screw-on cap comprising at least one detachable retention flap which can be screwed on or screwed off an outer screw thread belonging to a container for the purpose of preventing undue tampering of the contents stored inside the recipient.

Problems solved by technology

However, this type of sealing systems has some drawbacks resulting, for example, from the existence of a circular ring under the screw thread / screw threads on the neck of the recipient.

As a result, to perform said screwing on in the filling line, it is necessary to carry out a high screw torque to assure an effective screwing on, which on many occasions cannot be specified, and on other occasions deforms the outer appearance of the screw-on cap due to an excess.

Another problem is that the functioning of current tamper-resistant systems is not absolutely reliable either, that is, they do not 100% assure the leak-tightness of the container due to the breaking or detaching of the tamper-resistant band incorporated to the cap, since any partial turn prior to the complete unscrewing of the cap or closure causes a loss of the leak-tightness, and therefore the real possibility of a leak or introduction of liquid into the container without the band having been broken or detached.

Upon beginning to unscrew the cap, there is an audible noise caused by the carbonated gas leaving the inside of the container.

Therefore, the initial contents of the container may be altered, and as a result the end consumer may loose trust in the contents, which would result in a loss of sales for the manufacturer.

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