Pneumatic flow control system
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United States of America Patent
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Apr 6, 1993
Grant Date -
N/A
app pub date -
Feb 26, 1991
filing date -
Feb 26, 1991
priority date (Note) -
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Abstract
A fluid flow control system maintains a constant, controllable, low flow rate through an orifice; intermittently operates a pump at an efficient, relatively high flow rate; and moderates flow between the pump and the orifice. The system is energy efficient and accurate.
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