Underwater diving system

Details Underwater diving system Underwater diving system

1974-12-04

1977-12-13

Schwadron, Martin P.

Surgery

Truss

Pad

9339, 137259, 137266, 13750542, 137DIG9, 222538, 224 5W, A62B 704, B63C 1122

Patent

active

040623564

ABSTRACT:
The disclosure of this specification illustrates and teaches the use of a self contained breathing apparatus for attachment to a user's back and incorporates a plurality of tanks having a manifold between them that is common to all with a single filling block leading thereto, and a reserve system mounted at one end thereof. The reserve system comprises a poppet valve which signals a loss in pressure by closing, after which it can then be actuated to open it for supplying the remaining portion of the reserve breathing gas through the manifold.
The system also has a first and second stage regulator to provide regulated breathing gas to a user. The first stage regulator incorporates a dynamically balanced piston which is supported by an O-ring that is deformed through its cross section to provide movement to the valving piston.
The entire system is encapsulated within a package or casing which can be opened along a parting line thereof and which is secured by over-center latches. The casing has a number of straps and support members attached thereto forming a harness that a user places around his torso.

REFERENCES:
patent: 914576 (1909-03-01), Jaubert
patent: 2115383 (1938-04-01), Christensen
patent: 2142189 (1939-01-01), Hewitt
patent: 2162057 (1939-06-01), Brandt et al.
patent: 2625954 (1953-01-01), Klein
patent: 2998021 (1961-08-01), Becker
patent: 3147761 (1964-09-01), Lecocq

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