Continuous liquid flow system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 11, 2005
Grant Date -
Apr 17, 2003
app pub date -
Aug 15, 2002
filing date -
Mar 21, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for continuous delivery of a measured flow of liquid to a processing apparatus includes a reservoir for holding a bulk supply of the liquid and an intermediate vessel. A first pump delivers liquid from the intermediate vessel to processing equipment at one rate. A second pump delivers liquid from the reservoir to the intermediate vessel at a second much faster rate. A monitor device continuously monitors the weight of the vessel and controls the first pump accordingly to deliver the required weight of liquid at the required rate to the processing equipment. The monitoring device determines when the weight of liquid in the intermediate vessel has reached a minimum position to initiate operation of the second pump to refill to vessel and a further device terminates operation of the second pump when the liquid level in the vessel reaches a maximum position.
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