Diver's rescue apparatus

Details Diver's rescue apparatus Diver's rescue apparatus

1988-03-02

1990-08-28

Hindenburg, Max

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820128, 12820214, B63C 1102

Patent

active

049516604

ABSTRACT:
A diver's rescue apparatus includes a fillable buoyancy element and a breathing bag into which respiratory gas mixture is metered from a compressed gas source is to be expanded to a range of use for greater diving depths, for example up to 150 to 200 m. It is to be possible to carry out the then necessary supply of the apparatus wearer with physiologically adapted respiratory gas mixtures varying during the ascent by simple means in order to minimize the space requirement and weight of the apparatus as well as its trouble proneness and cost of maintenance. A first compressed gas tank containing a gas mixture for great depths to the breathing bag via a fixed throttle 7, while a second compressed gas tank containing a gas mixture for small depths is so connected via a separate pressure reducer and a downstream second fixed throttle.

REFERENCES:
patent: 3107373 (1963-10-01), Mellon, Jr. et al.
patent: 3524444 (1970-08-01), Ellard et al.
patent: 3845768 (1974-11-01), Garrahan
patent: 4108171 (1978-08-01), Nyman et al.

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