Device for supplying a powdery product in gravimetrically metered amounts to a pneumatic line
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United States of America Patent
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-
Jun 2, 1987
Grant Date -
N/A
app pub date -
Jun 17, 1985
filing date -
Jun 18, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gravimetric metering apparatus with a constant throughput is enclosed inside a sealed chamber and connected through the wall of the chamber, by a first pipe, to a pneumatic conveyor line operating under a pressure of n bars and, by a second pipe, to an intermittentently operated external loading hopper. The chamber is filled with gas under a pressure of n bars which is equal to that inside the pneumatic conveyor line.
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