Air sampling and alarm control system

Details Air sampling and alarm control system Air sampling and alarm control system

1987-12-16

1990-02-27

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340626, G08B 2100

Patent

active

049049879

ABSTRACT:
An air sampling and alarm control system for detecting the presence of a toxic contaminant in the atmosphere and for providing an audible alarm when insufficient gas flow is present in the system to adequately test for the presence of the contaminant. The alarm control is provided by a pressure switch which is electrically connected in circuit with an audible alarm and pneumatically connected in circuit with the gas flow line connecting the sampling pump to the sampling detector.

REFERENCES:
patent: 1714373 (1928-06-01), Johnson
patent: 1818258 (1928-06-01), Isaacks
patent: 1957894 (1934-05-01), Longnecker
patent: 2843077 (1958-07-01), Leefer
patent: 3304546 (1967-02-01), Kern et al.
patent: 4336533 (1982-06-01), Wettach
patent: 4532814 (1985-08-01), Lalin
patent: 4635047 (1987-01-01), Fox et al.

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