Helium leak detection method and system

Details Helium leak detection method and system Helium leak detection method and system

1990-10-29

1991-09-17

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55406, 73 407, 415 90, 417244, 417250, 4174231, B01D 5700

Patent

active

050491687

ABSTRACT:
A method of separating a lighter gas from heavier gases, in which a molecular drag pump is used. A series of support pumps are connected to the exhaust port of the molecular drag pump. A gas to be separated out from a mixture of gases is introduced at an exhaust port of one of the pumps, with the lighter gas among them traveling upstream through the molecular drag pump, into a container.

REFERENCES:
patent: 1969076 (1934-08-01), Hirsch
patent: 3832084 (1974-08-01), Maurice
patent: 3973929 (1976-08-01), Kraus
patent: 4472962 (1984-09-01), Mennenga
patent: 4606221 (1986-08-01), Tallon et al.
patent: 4746265 (1988-05-01), Luitjen
patent: 4893497 (1990-01-01), Danielson
patent: 4893985 (1990-01-01), Holss

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