Device for measuring the volume of a gas

Details Device for measuring the volume of a gas Device for measuring the volume of a gas

1986-05-19

1988-03-08

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

92 83, 92 98D, G01F 314, F15B 2100

Patent

active

047292385

ABSTRACT:
A device for measuring the volume of a gas comprises a cylinder and a piston movably mounted in the cylinder. A first membrane sealingly connects the piston with the inner wall of the cylinder. The cylinder, the piston and the first membrane determine a measuring space in which a measuring conduit for the gas to be measured debouches. A second membrane also sealingly connects the piston with the cylinder inner wall. The first and second membranes determine an intermediate space in which an underpressure is generated during operation.

REFERENCES:
patent: 2678663 (1954-05-01), Thyba
patent: 2725078 (1955-11-01), Glancy
patent: 3722506 (1973-03-01), McMillan, Jr.
patent: 3769879 (1973-11-01), Lofquist, Jr.
patent: 4096855 (1978-06-01), Fleury, Jr.

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