Measuring and testing – Volume or rate of flow – System
Patent
1991-01-30
1992-07-07
Nozick, Bernard
Measuring and testing
Volume or rate of flow
System
55 49, 55208, 55270, 7386312, G01N 504
Patent
active
051272580
ABSTRACT:
An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a duplex sampling apparatus. The apparatus is adapted to independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecting from a second container. A second container also includes a first port capable of selectively connecting to and disconnecting from the second port of the first container and a second port capable of either selectively connecting to and disconnecting from a differential pressure source. By cooling a mixture sample in the first container, the condensable vapors form a liquid, leaving noncondensable gases either as free gases or dissolved in the liquid. The condensed liquid is heated to drive out dissolved noncondensable gases, and all the noncondensable gases are transferred to the second container. Then the first and second containers are separated from one another in order to separately determine the amount of noncondensable gases and the amount of condensable gases in the sample.
REFERENCES:
patent: 2201870 (1940-05-01), Piercy
patent: 2327111 (1943-08-01), Kimmell
patent: 2475857 (1949-07-01), Reinert
patent: 2519303 (1950-08-01), Whitehouse
patent: 3556730 (1971-01-01), Mitacek
patent: 3956921 (1976-05-01), Himes et al.
patent: 4325247 (1982-04-01), Foss
Brown Paul E.
Lloyd Robert
Constant Richard E.
Hoffman Michael P.
Moser William R.
Nozick Bernard
The United States of America as represented by the United States
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