Leak standard generator

Details Leak standard generator Leak standard generator

1978-02-17

1979-08-21

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

B01B 1700

Patent

active

041648617

ABSTRACT:
A leak standard generator which utilizes the diffusion properties of a gas or vapor to deliver a uniform rate of flow of a leak sample into a diluent gas stream. The generator includes a reservoir containing the leak sample, a discharge head through which is passed a metered flow of diluent gas and a diffusion tube of prescribed dimensions for carrying a gas or vapor of the sample from the reservoir into the diluent gas stream moving through the discharge head. Heating means are provided to maintain the reservoir and the diffusion tube at different temperature levels to promote uniform movement of the sample gas or vapor into the diluent stream.

REFERENCES:
patent: 2981091 (1961-04-01), Roberts
patent: 3516278 (1970-06-01), Klein et al.
patent: 4036915 (1977-07-01), Lucero

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