Hazardous atmosphere badge

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1978-05-04

1980-05-27

Turk, Arnold

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

73 23, 116206, 422 58, 422 87, G01N 3122, A62C 3902

Patent

active

042050430

ABSTRACT:
An inexpensive badge for detection of dangerous gases wherein a plurality of paper discs impregnated with a color sensitive gas indicator chemical are mounted in alignment with apertures in a plastic substrate by a pressure sensitive tape backing. The front face of the substrate is covered with a further strip of pressure sensitive tape, which is removed to initiate indication of gas dosage by the detector.

REFERENCES:
patent: 1891429 (1932-12-01), Ljunggren
patent: 3002385 (1961-10-01), Wahl et al.
patent: 3681027 (1972-08-01), Smith
patent: 3689224 (1972-09-01), Agnew et al.
patent: 3697227 (1972-10-01), Goldstein et al.
patent: 3992153 (1976-11-01), Ferber et al.

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