Filter cover assembly for a respirator

Details Filter cover assembly for a respirator Filter cover assembly for a respirator

1990-06-19

1991-07-23

Rivell, John

Fluid handling

With means for separating solid material from the fluid

Planar strainer normal to flow path

12820617, 12820615, 12820529, A62B 710, A62B 2302

Patent

active

050335073

ABSTRACT:
The present invention provides a filter cover assembly for use with the filter of a respirator. The semi-rigid filter cover assembly fits snugly over the face of the filter and, with the use of a one-way valve assembly mounted therein, allows the user to continue using the respirator while at the same time containing any contaminated particulate matter that may fall out of the filter. This permits the user to continue using the respirator while in a decontamination zone without danger of dispersing contaminated matter. It also permits easy handling and storage of the filter between uses without necessitating the cleaning of the filter.

REFERENCES:
patent: 3059637 (1962-10-01), Senne
patent: 3990439 (1976-11-01), Klinger
patent: 4543112 (1985-09-01), Ackley et al.
patent: 4548626 (1985-10-01), Ackley et al.
patent: 4686976 (1987-08-01), Bakkila et al.
patent: 4793342 (1988-12-01), Haber et al.
patent: 4818122 (1989-04-01), Arbuthnot
patent: 4838262 (1989-06-01), Katz
patent: 4850346 (1989-07-01), Michel et al.

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