Method of making loose fitting supplied air respiration hood

Details Method of making loose fitting supplied air respiration hood Method of making loose fitting supplied air respiration hood

1984-06-04

1985-12-31

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29157R, B21D 3903, B23P 1100

Patent

active

045611629

ABSTRACT:
A loose fitting respirator hood made of flaccid, non-stretchable, air impervious material with a curved optical lens panel interposed in the sidewall thereof. The method of making the hood is disclosed in which curvature is imparted to a relatively stiff lens panel by the flaccid material of the hood. Head engaging members are disclosed for supporting the hood on the head of the wearer. A neck engaging ruff is disclosed which is sealingly mounted about the interior of the hood and can define a hollow annulus with apetures through the sidewall thereof to provide for air distribution to the interior of the hood. A rigid collar member for interconnecting the hood with a suit is disclosed together with the provision of an air filter in communication with a tubular member sealed through the lens panel and extending into proximity with the mouth of the wearer to supply respirable air.

REFERENCES:
patent: 728476 (1903-05-01), Langer
patent: 1095089 (1914-04-01), Dinn
patent: 2666953 (1954-01-01), Andrews
patent: 2882894 (1959-04-01), Fahey et al.
patent: 3098233 (1963-07-01), Hoagland
patent: 3557436 (1971-01-01), Hodes
patent: 4052984 (1977-10-01), Brockway

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