Device for continuously metering and transporting a powder, the use of the device, and a coating powder sprayer installation including the system
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United States of America Patent
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Oct 23, 2012
Grant Date -
Oct 11, 2007
app pub date -
Apr 11, 2006
filing date -
Oct 8, 2004
priority date (Note) -
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Abstract
A system for continuously metering and transporting a powder comprises means (104-107) for fluidizing (F2) the powder in a closed reservoir (4), a tube (110) dipping into the fluidized powder (L4) and discharging (110B) to the outside of the reservoir (4), and means (S2, C2) for pressurizing the reservoir. The system further comprises supply means (C3) for continuously supplying pressurizing gas from the reservoir (4) to a chamber (V6) for mixing the gas with fluidized powder leaving the tube (110), said supply means (C3) being equipped with or constituting a constriction (R3) to the flow of the pressurizing gas. A hose (7) for transporting the powder mixed with the pressurizing gas is connected to the downstream end of the mixing chamber (V6).
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