Protective breathing mask

Details Protective breathing mask Protective breathing mask

1988-02-05

1989-10-03

Nerbun, Peter

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

2 7, 2205, 206a, A62B 1804, A62B 700, A42B 104

Patent

active

048709590

ABSTRACT:
A protective breathing mask comprising fire-resistant stretchable material shaped as a hood for wearing over and enclosing the head. An access opening allows the head to be placed therethrough such that a substantially airtight closure is provided at the neck. In one embodiment, portions of the mask are removed at eye and mouth locations whereat they are replaced by respective viewing and filter materials sealed to the stretchable material. The viewing material comprises transparent fire-resistant material, and the filter material comprises a plurality of fire-resistant flexible layers at least one of which has embedded therein activated charcoal particles.

REFERENCES:
patent: 3789839 (1974-02-01), Lund et al.
patent: 4231118 (1980-11-01), Nakagawa
patent: 4411023 (1983-10-01), Pinson
patent: 4583535 (1986-04-01), Saffo

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