Cold protection suit having a protective breathing device

Details Cold protection suit having a protective breathing device Cold protection suit having a protective breathing device

1984-01-13

1985-03-12

Recla, Henry J.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820226, 128402, A62B 710

Patent

active

045038503

ABSTRACT:
In places with a cold ambience and endangered by water bursts, such as diving chambers and submarines, failures in breathing gas supply as well as undercooling may occur upon an accident. The inventive cold protection suit circumvents such dangerous situations in a simple and reliable way. The protective suit is a multilayer wall structure made up of partial casings which can be put on individually, namely a body casing, an intermediate casing, and an outer casing. The intermediate casing has two walls of a material semipermeable to respiratory gas which are spaced apart from each other and form pockets. The pockets are filled with a chemical known per se by which carbon dioxide is exothermally fixed and oxygen is released. The exhaled air is directed through a breathing mask and exhalation tube into passages which are formed between the outer and the intermediate casing. Therefrom, the exhaled air penetrates through one semipermeable wall, the chemical within the walls out the other semipermeable wall into passages adjacent the body casing, and it gives off heat to the user of the suit, and flows back to the breathing mask.

REFERENCES:
patent: 3049896 (1962-08-01), Webb
patent: 3229681 (1966-01-01), Gluckstein

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