Synthetic resin bottle and preform mold

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 1/02 (2006.01) B65D 41/04 (2006.01) B65D 41/34 (2006.01)

Patent

CA 2469034

It is intended to provide a synthetic resin bottle, in which the stable no-leak condition can be maintained up to a certain cap-turning angle, and air-tightness of the bottle can be fully secured, even if the cap is falsely turned. The body 2 of the synthetic resin bottle is configured to have a smooth seal surface 8 with no irregularity over the entire circumference in the upper portion of the outer neck wall where no parting line is formed. In this configuration, a stable no-leak condition can be maintained up to a certain capturning angle, and air-tightness of the bottle can be fully secured, even if the cap is falsely turned.

L'invention concerne un contenant en résine synthétique. Même si l'on en tourne le couvercle, l'étanchéité à l'air de ce contenant est maintenue jusqu'à la rotation du couvercle selon un angle préétabli. En outre, ledit contenant offre un angle d'ouverture de couvercle stabilisé. L'invention concerne par ailleurs un corps principal de contenant du type bouteille (2) en résine synthétique. Dans la structure de ce contenant, l'extrémité supérieure de la périphérie supérieure de l'embouchure (4) est constituée sous la forme d'une surface d'étanchéité lisse (8) qui ne présente aucune ligne de séparation ni aucune irrégularité de surface sur toute la périphérie. Même si l'on tourne le couvercle, l'étanchéité peut être maintenue jusqu'à la rotation du couvercle selon un angle préétabli, moyennant quoi il est possible d'assurer dans ce contenant une étanchéité à l'air suffisante.

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