Air sampling pump

Details Air sampling pump Air sampling pump

1976-06-09

1978-05-30

Ruehl, Charles A.

Measuring and testing

Measuring vessel

73 23, G01N 124

Patent

active

040916740

ABSTRACT:
An electronically timed, positive displacement air sampling pump for use with a wide variety of air sample collecting devices and in a wide range of environmental conditions. The invention provides for accurate average flow rate, independently metered total volume, operating time register and audible "rate fault" alarm.

REFERENCES:
patent: 2489654 (1949-11-01), Main-Smith et al.
patent: 3093001 (1963-06-01), Williams
patent: 3238783 (1966-03-01), Wright
patent: 3782198 (1974-01-01), Wachter et al.
patent: 3953152 (1976-04-01), Sipin

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