nozzles
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United States of America Patent
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Jun 4, 2013
Grant Date -
Mar 10, 2011
app pub date -
Sep 10, 2009
filing date -
Sep 10, 2009
priority date (Note) -
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Abstract
A nozzle and method of providing CO2 for cleaning includes providing a CO2 flow; phase transferring the CO2 flow into gaseous CO2 and CO2 pellets; interrupting the CO2 flow with a screen member; retaining the CO2 pellets of a select larger size upstream of the screen member; permitting the CO2 pellets of a select smaller size to pass through the screen member for cleaning.
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