Closure cap with braking structure

Details Closure cap with braking structure Closure cap with braking structure

B - Operations, Transporting

65

D

B65D 41/04 (2006.01)

Patent

CA 2304137

A closure (26) for a container having a threaded finish portion, with a braking structure to resist unscrewing of the closure and thereby provide sufficient time for any gases within the container to vent. The braking structure comprises a restrictor means (44) located adjacent to the leading edge (43) of the closure thread (42) and arranged such that the container thread is squeezed between the restrictor means and the axially adjacent portion of the closure thread. The restrictor means provides braking with a minimum of radial force being exerted on the closure.

Dispositif de fermeture (26) pour récipient présentant une portion filetée, avec une structure de freinage en vue de résister au dévissage du dispositif de fermeture pour donner aux gaz contenus dans ledit récipient suffisamment de temps pour qu'ils s'échappent vers l'extérieur. La structure de freinage comprend des moyens réducteurs de pression (44) adjacents au bord d'attaque (43) du filetage de fermeture (42) et agencés de telle façon que le filetage du récipient soit coincé entre les moyens réducteurs de pression et la portion axialement adjacente du filetage de fermeture. Les moyens réducteurs de pression permettent d'obtenir un freinage avec une force radiale minimale exercée sur le dispositif de fermeture.

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