Gas leakage detection apparatus

Details Gas leakage detection apparatus Gas leakage detection apparatus

1978-09-25

1980-03-25

Dixon, Harold A.

Radiant energy

Ionic separation or analysis

With evacuation or sealing means

250281, B01D 5944

Patent

active

041952243

ABSTRACT:
A gas leakage detection apparatus is described comprising a mass spectrometer with which there is associated a first pumping device for creating a relative vacuum in the apparatus, a selective pumping device having a first pumping speed for air and a second pumping speed for the gas which is to be analyzed, said second pumping speed being lower than the said first pumping speed, and a throttling device connected between the selective pumping device and the first pumping device, this throttling device having an opening chosen so as to let through a flow which is very small compared with the flow produced by the selective pumping device for the air.

REFERENCES:
patent: 3057996 (1962-10-01), Boyer
patent: 3227872 (1966-01-01), Nemeth
patent: 3992626 (1976-11-01), Bursack

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