Gas monitoring equipment

Details Gas monitoring equipment Gas monitoring equipment

1986-06-19

1988-09-27

Levy, Stewart J.

Measuring and testing

Gas analysis

Gas chromatography

7386333, 7386331, G01N 122

Patent

active

047732520

ABSTRACT:
Equipment for monitoring the concentration of components in a gas flow has two probes (1,2) located at (63) in the gas flow. Sample gas is drawn through the probes and through pipes (3,4) by a pump (8), and test samples are extracted from the pipes by pumps (11,12) and fed to an analysis line (10). The probes (1,2) work alternately, and, when one is not working, it may be cleaned by blowing air through from a source (9), while the corresponding one of the pipes (3,4) is blocked from the line (10) by valves (13-16).

REFERENCES:
patent: 3043145 (1962-07-01), Hoffman
patent: 3334513 (1967-08-01), Thomas
patent: 3444721 (1969-05-01), Hearn et al.
patent: 3457787 (1969-07-01), Maatsuch et al.
patent: 3748906 (1973-07-01), Manka
patent: 3978732 (1976-09-01), Dillman
patent: 4031747 (1977-06-01), Blanke
patent: 4099392 (1978-05-01), Smith et al.
patent: 4497214 (1985-02-01), Ramelot
patent: 4517849 (1985-05-01), Nakahori et al.

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