Injector device for feeding coating powder
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United States of America Patent
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Jul 8, 1997
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 24, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An air injector for a powder feeder in a powder coating system having a powder barrier with a filter element of microporous material. The microporous material is permeable to air, but not to the coating powder. The powder barrier prevents a penetration of coating powder into the air feed path in a direction opposite to the air flow direction. The powder barrier permits a quick color change without the need to disassemble the air injector for cleaning.
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