Furnace and method with sensor
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United States of America Patent
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-
Sep 22, 1981
Grant Date -
N/A
app pub date -
Feb 4, 1980
filing date -
Feb 4, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Oxygen sensor comprising solid oxygen-ion-conducting electrolyte with a platinum group metal film electrode contacts and monitors nonoxidizing or reducing gas atmosphere in a metal heat treatment (gas carburizing) furnace after a getter of the same platinum group metal as in the film electrode removes platinum group metal contaminants from such atmosphere before it contacts the electrode. Getter is held in a thin-walled, multi-passaged honeycomb body.
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