Refillable polyester container and preform for forming the same

Details Refillable polyester container and preform for forming the same Refillable polyester container and preform for forming the same

B - Operations, Transporting

65

D

B65D 1/02 (2006.01) B29C 49/06 (2006.01) B29C 49/28 (2006.01) B29C 49/64 (2006.01)

Patent

CA 2203040

This relates to a returnable/refillable container in the form of a blow molded polyester biaxially oriented bottle wherein the container includes a domed base construction wherein the wall thickness gradually and smoothly increases to a maximum at the center of the dome. This also relates to a specially configurated preform which is blow molded to form the container and a specially configurated blow mold cavity for receiving a preform having a lower axial projection in the form of an elongated gate without crushing.

La présente invention a trait à un récipient retournable/rechargeable sous forme d'une bouteille à orientation biaxiale moulée par soufflage, le récipient comportant une base bombée dans laquelle l'épaisseur de paroi augmente doucement et graduellement jusqu'à un maximum au centre du bombement. L'invention a également trait à une préforme spécialement configurée qui est moulée par soufflage pour mouler le récipient et une cavité spécialement configurée moulée par soufflage pour recevoir sans écrasement une préforme ayant une projection axiale inférieure en forme de barrière allongée.

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