Method for determining the end of useful life of a gas purifier and apparatus therefore
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United States of America Patent
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Dec 15, 1992
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N/A
app pub date -
Mar 7, 1991
filing date -
Mar 30, 1990
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Abstract
A method, based on the measurement of electrical resistance, and an apparatus for performing the measurement, which indicates the moment in which a gas purifier is about to loose its purification efficiency. The gas purifier can therefore be substituted before the impurity levels in the purified gas output reach undesirably high values.
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