Ammonia flow alarm and method therefor

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S606000, C340S607000, C340S608000, C073S240000, C073S204190, C073S204250

Reexamination Certificate

active

07084778

ABSTRACT:
A sensor system for monitoring cryogenic gas flow through a tube/pipe has at least one sensor coupled to the tube/piping. An alarm circuit is coupled to the sensor for receiving measurement signals from the at least one sensor and for sending an alarm signal when the measurement signal deviates from a predetermined level.

REFERENCES:
patent: 4922233 (1990-05-01), Twerdochlib
patent: 6474155 (2002-11-01), Berkcan et al.

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