Hot runner nozzle with laminar flow pin point tip
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United States of America Patent
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-
Jun 13, 2000
Grant Date -
N/A
app pub date -
Dec 8, 1998
filing date -
Dec 8, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hot runner nozzle for heating and directing a melt stream to a mold cavity. The nozzle includes a heated nozzle body having a longitudinal flow passageway with a tapered tip at a downstream end thereof. The tip has a plurality of internal transition passageways communicating between said longitudinal passageway outwardly through a side of the tip. The tip is formed with a plurality of external laminar flow passageways each communicating with a respective internal tip passageway and extending longitudinally in a downstream direction along the tapered tip for imparting a laminar flow to the melt stream as it approaches and is directed through the mold cavity gate.
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