Method and apparatus for monitoring liquid levels within a vessel
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United States of America Patent
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Sep 5, 2006
Issued Date -
N/A
app pub date -
Jun 26, 2003
filing date -
Jul 17, 2002
priority date (Note) -
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Abstract
An apparatus for monitoring the level of a liquid in a vessel comprises at least one metallic probe hermetically sealed within the vessel, the probe having a sealing end and at least a portion of the probe constituting a first electrode, the sealing end of the probe being encased within a glass material, a second electrode spaced apart from said first electrode in a manner such that the first and second electrode together form part of a capacitor, a mechanism for supplying an electrical current from an applied electrical current source to the capacitor, and a mechanism for monitoring capacitance of the capacitor.
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