Patent ID: 8057733
Filing Date: 2011-11-15
Classification: B29B,B29C,G01F

Abstract:
1. A method for making a dosing bottle comprising the steps of: injecting a synthetic resin into an injection mold to form a preform having an extended neck portion having a neck wall extending between an open end and a body portion, the body portion having a diameter and a body wall thicker than the neck wall, the preform including a peripheral internal shoulder located substantially at a transition between the extended neck portion and the body portion, and the preform including an outwardly extending collar located on the neck wall, wherein the body portion has an external localized reduction in diameter adjacent to outwardly extending collar, wherein the internal shoulder is located between the collar and the reduction in diameter, and wherein thicker body portions are located above and below the external localized reduction in diameter; removing the preform from the mold; heating the preform; placing the preform into a blow mold of the type including a cavity configured to form the body portion into a desired shape, the blow mold further including a support portion which includes a first support formation and a second support formation; supporting the preform at the outwardly extending collar with the first support formation and at the external reduction in diameter of the body wall with the second support formation to prevent movement of the neck portion into the cavity when the preform is pressurized, wherein the neck portion located between the collar and open end is outside of the cavity, and wherein the support portion cools the portion of the preform between the internal shoulder and the reduction in diameter; and pressurizing the preform while supporting the neck portion at the reduction in diameter to cause only the preform portions beyond the reduction in diameter to reduce in thickness and substantially conform to the cavity, wherein an internal collar engageable by a fitment is formed between the internal shoulder and the reduction in diameter.