Gasless calibration in metabolic gas analyzers

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United States of America Patent

PATENT NO 7805975
APP PUB NO 20090056409A1
SERIAL NO

11899335

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Abstract

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levels in ambient air and cell pressure are measured at two different flow rates through the sample chamber and the IR source is again dimmed by the same percentage as had been used at the time of factory setup. Based upon the resulting readings, both the zeroing and span adjustment factors can be computed.

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Patent Owner(s)

Patent OwnerAddress
MEDICAL GRAPHICS CORPORATION350 OAK GROVE PARKWYA ST PAUL MN 55127

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Yu Andover, US 837 9647
Howard, C Peter Humboldt, US 5 191
Snow, Michael G White Bear Lake, US 9 446

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