Liquid blow molding method
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United States of America Patent
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Aug 2, 2022
Grant Date -
Oct 22, 2020
app pub date -
Oct 3, 2018
filing date -
Nov 29, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, including: an air-liquid replacement step of supplying a liquid into the preform from the mouth portion through a blow nozzle and discharging the air inside the preform to the outside; an air-liquid separation step of separating the air from the liquid inside the preform by vibrating the preform; and a blow molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform from the mouth portion through the blow nozzle, after the air-liquid separation step.
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