Net mass liquid filler
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United States of America Patent
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-
Dec 7, 1999
Grant Date -
N/A
app pub date -
Nov 13, 1997
filing date -
Nov 15, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Liquid filling apparatus and method of producing a fill or dose of a defined quantity of liquid based upon the mass of the liquid. In one embodiment, a servo motor driven rotary positive displacement pump is used to produce flow through a Coriolis mass flow meter to feed a positive shut-off filling nozzle, wherein mass flow data from the meter is used to control the servo motor-pump-nozzle to produce a precise fill dose of liquid based upon its mass.
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