Respirator cartridge end-of-service life indicator

Details Respirator cartridge end-of-service life indicator Respirator cartridge end-of-service life indicator

1981-10-19

1985-07-23

Nozick, Bernard

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55379, 55316, 55DIG34, 55DIG35, B01D 5000

Patent

active

045307067

ABSTRACT:
Visual indication of respirator cartridge end-of-service life is accomplished with color indicator means particularly designed for long term shelf life and an adaptability to respond to both water soluble and water insoluble organic vapors.

REFERENCES:
patent: 1537519 (1925-05-01), Yablick
patent: 2614650 (1952-10-01), Chandler et al.
patent: 3029581 (1962-04-01), Robbins
patent: 3171726 (1965-03-01), Roney et al.
patent: 3377294 (1968-04-01), Davis et al.
patent: 3892549 (1975-07-01), Lyshkow
patent: 3966440 (1976-06-01), Roberts
patent: 4154586 (1979-05-01), Jones et al.

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