Portable battery-operated ambient air analyzer
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United States of America Patent
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-
Mar 27, 1990
Issued Date -
N/A
app pub date -
Mar 31, 1989
filing date -
Mar 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Portable battery-operated ambient air analyzer comprising an electrically-energized incandescent source of infra-red radiation producing a beam passing through an air sample to a sensor. The infra-red source is surrounded by an explosion-proof enclosure to prevent an explosion internally of the enclosure being propagated out to the atmosphere. The incandescent source is a self-supporting filamentary coil having no interior core or mandrel. The coil is formed of a metal composition including aluminum, chromium and iron, operated at a temperature of less than 1000.degree. C.
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