Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1991-07-11
1993-03-23
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
356246, G01N 2117
Patent
active
051953560
ABSTRACT:
An assembly is provided for mounting on a flue or exhaust stack conveying combustion gases from a furnace. The assembly permits periodic calibration of a cross-duct flue gas analyzer which senses the flue gas concentrations in the combustion gases. The gas analyzer is calibrated while in place without requiring its removal from service.
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patent: 4583859 (1986-04-01), Hall, II
patent: 5003175 (1991-03-01), Fabinski et al.
Houston Industries Incorporated
Raevis Robert
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