Dual chamber personal flotation device

Details Dual chamber personal flotation device Dual chamber personal flotation device

1980-05-21

1982-04-13

Recla, Henry J.

Surgery

Respiratory method or device

Combined with or convertible to a nonrespiratory device, or...

12820716, 12820513, 441123, A62B 700, B63C 1100

Patent

active

043242340

ABSTRACT:
A dual chamber personal flotation device which allows rebreathing into it. One of the chambers is for flotation only and is inflated with CO.sub.2 ; the other is for rebreathing, and is inflated with air. A tube located close to the wearer's mouth has a combination mouthpiece-shutoff valve on it which is designed to collect a minimum amount of water in it prior to being inserted in the wearer's mouth, thereby minimizing problems due to water ingestion during rebreathing. The chambers are independently inflatable in the event that either the size or the buoyancy has to be minimized in order to escape.

REFERENCES:
patent: 2001673 (1935-05-01), Davis
patent: 2456130 (1948-12-01), Lambertsen
patent: 3266070 (1966-08-01), O'Link
patent: 3536071 (1970-10-01), Ferrando
patent: 3609783 (1971-10-01), Cooke
patent: 3814091 (1974-06-01), Henkin
patent: 4097947 (1978-07-01), Kiefer

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