NOZZLE
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United States of America Patent
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N/A
Issued Date -
Sep 3, 2009
app pub date -
Oct 23, 2006
filing date -
Nov 1, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a nozzle (16) for emitting solid carbon dioxide particles. The nozzle (16) comprising an inlet (30) for receiving liquid carbon dioxide, a nozzle aperture (32) from which solid carbon dioxide particles flow from the nozzle (16), a duct extending between the inlet (30) and the nozzle aperture (32), the duct having a convergent section (36) and a divergent section (38), and an axially displaceable valve member (42) located within the duct, the valve member (42) having first and second convergent portions and a substantially cylindrical portion located between the first and second convergent portions. The nozzle (16) finds particular use in apparatus for cooling a heated weld zone in a workpiece.
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