Measurement of oxygen and residual pressure of a package

Details Measurement of oxygen and residual pressure of a package Measurement of oxygen and residual pressure of a package

1990-09-18

1992-03-31

Williams, Hezron E.

Measuring and testing

Gas content of a liquid or a solid

By pressure of the gas

73 3104, 73 52, G01N 714, G01D 2102

Patent

active

050996797

ABSTRACT:
Residual pressure and oxygen content of a pack are measured in an apparatus having a pressure measuring system and an oxygen measuring system in a branched arrangement. The oxygen content is measured by employing a vacuum pump to displace gas from the pack to an oxygen measuring system and a compression chamber which is then reset to atmosperic pressure and the oxygen content of the gas is measured. A two-way valve enables stopping displacement of the gas to the oxygen measuring system and enables the oxygen measuring system and compression chamber to be reset to atmospheric pressure.

REFERENCES:
patent: 3201994 (1965-08-01), Adams
patent: 3203248 (1965-08-01), Stutler et al.
patent: 3374678 (1968-03-01), McGuckin
patent: 3849020 (1974-11-01), Garza et al.
patent: 4133736 (1979-01-01), Nakagawa et al.
patent: 4733555 (1988-03-01), Franks
patent: 4926681 (1990-05-01), Fitzpatrick

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