Process and apparatus for producing hollow bodies from thermoplastic material
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United States of America Patent
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-
Dec 3, 2002
Grant Date -
N/A
app pub date -
Mar 6, 2000
filing date -
Mar 18, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
In a process and apparatus for producing hollow bodies from thermoplastic material by blow molding of preforms using a closing support structure having at least first and second blow molding molds, a common drive means engages a drive plate and a first carrier plate which carries a mold portion. The drive plate is connected to a second carrier plate carrying another mold portion. At least one further carrier plate is arranged displaceably in the opening and closing direction between the first and second carrier plates. At each of its two sides the further carrier plate carries a respective mold portion, each thereof with a mold portion carried by an adjacent carrier plate forming a respective blow molding mold. Each of the two blow molding molds afforded thereby is provided with a means for locking the respective mold in the closed condition thereof. The support structure has at least one synchronisation means for symmetrical implementation of the closing and opening movements of the parts of the respective mold.
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