Liquid heaters and vaporizers – Steam domes
Reexamination Certificate
2005-08-23
2005-08-23
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Steam domes
C122S504000, C073S29000R, C702S055000
Reexamination Certificate
active
06932028
ABSTRACT:
An apparatus for determining a density-compensated liquid level in a vessel containing a mixture of liquid and vapors comprises a temperature sensor which produces a signal that is proportional to the temperature of the mixture; and a processing apparatus that includes one or more pressure sensors that allow for a measurement of an operating pressure and a differential pressure between the mixture in the vessel and a constant reference leg. The processing apparatus further includes an integral microprocessor for calculating the respective specific gravities of the liquid and vapor portions of the mixture based on the operating pressure, and then computing the density-compensated liquid level in the vessel based on such calculations of specific gravity and the differential pressure.
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Hatfield Paul
Kearney Harold
Nagle, Jr. David W.
Stites & Harbison PLLC
Vogt Power International Inc.
Wilson Gregory
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