Apparatus for the production of plastic pipes
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United States of America Patent
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-
Sep 13, 1994
Grant Date -
N/A
app pub date -
Mar 6, 1992
filing date -
Apr 8, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for the manufacturing of plastic pipes has an injection head and half shells of which two at a time combine as a pair to form a mold. The injection head has at least one channel issuing in a substantially ring-shaped nozzle, which is delimited by two components one of which being adjustable for modification of the width of the nozzle. A component directly delimiting the nozzle is tiltable in relation to the central longitudinal axis, whereby an adjustment of the width with great sensitivity is attained for such a ring-shaped nozzle.
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