Circuit for exhausting air from a parison, system for supplying and exhausting air from a parison and aseptic moulding process using said circuit and said system
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United States of America Patent
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Nov 17, 2015
Grant Date -
Apr 17, 2014
app pub date -
May 8, 2012
filing date -
May 10, 2011
priority date (Note) -
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Abstract
Process of molding a container in a contamination-controlled environment (102) starting from a parison (20) made of plastic material, comprising the steps of: injecting air into the parison (20) at the maximum pressure of 16 bar and subsequently, at the maximum pressure of 40 bar in such a way as to obtain the container; discharging the air from the parison or from the container (20) externally of the contamination-controlled environment (102) until the air pressure inside the container (20) reaches a predetermined value comprised between 0.5 bar and 3 bar; completing the discharge of the air from the container (20) towards the contamination-controlled environment (102).
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