Breath transfer device

Details Breath transfer device Breath transfer device

1986-05-06

1987-08-04

Scott, Samuel

Stoves and furnaces

Body warmers

12820417, 12820113, A61F 700

Patent

active

046838694

ABSTRACT:
A breath transfer device which uses the heat of exhaled air to warm the body of the wearer of the device in cold environments, and which facilitates condensation of moisture in the device to eliminate the formation of vapor clouds. The device uses a mouthpiece into which exhaled air is blown, and a length of insulated tubing to direct the warm air to a vest-like radiating chamber garment. The moisture in the expelled air condenses on the inner surfaces of the chamber and is retained in special condensing pockets formed at the ends of internal partitions which provide a sinuous path for air flow through the chamber. Cooled dry air is finally exhausted at the lowermost point of the radiating chamber.

REFERENCES:
patent: 1731700 (1929-10-01), Battenfeld
patent: 2551142 (1951-05-01), Lessard
patent: 2707966 (1973-01-01), Nebel
patent: 3153720 (1964-10-01), Petronio et al.
patent: 3229681 (1966-01-01), Gluckstein
patent: 3345641 (1967-10-01), Jennings
patent: 4038698 (1977-08-01), Smith
patent: 4441494 (1984-04-01), Montalbano
patent: 4492228 (1985-01-01), Makovic

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