Portable hand-held oxygen monitor
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Sep 8, 2014
filing date -
Sep 8, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A portable hand-held oxygen monitor for monitoring oxygen in a weld zone includes a user interface having an alphanumeric display and one or more user interface buttons. An audiovisual alarm includes an indicator light and an audio output device, the indicator light being separate and distinct from the alphanumeric display. The oxygen monitor implements an oxygen monitoring mode responsive to activation of one or more of the user interface buttons, wherein (1) a gas sample is obtained, (2) a digital gas sample oxygen level value is generated, and (3) the gas sample oxygen level value is compared to a stored oxygen level alarm value, and the audiovisual alarm is activated if the gas sample oxygen level value is less than the oxygen level alarm value. The activating includes illuminating the indicator light and generating sound from the audio output device to alert a monitor user that is safe to weld.
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