Breathing apparatus for diving

Details Breathing apparatus for diving Breathing apparatus for diving

1987-07-21

1989-03-07

Chambers, A. Michael

Surgery

Respiratory method or device

Underwater exhalation dispersing means

12820524, 12820421, B63C 1102

Patent

active

048096911

ABSTRACT:
Breathing apparatus for diving of the type comprising a breathing bag (13), a mouthpiece (30), inhaling and exhaling ducts (16 and 17) connected to the bag and to the mouthpiece these inhaling and exhaling ducts being respectively provided with inhaling and exhaling non return valves (18 and 19), and a so called "drainage" device. The apparatus further comprises a device (22) for measuring the volume of inhaled and exhaled gas. The draining device comprises a switching means (21) which, in so called "operating" position, is adapted to direct the flow towards the exhaling valve (19), and in so called "non operating" position is adapted to direct the exhaled flow towards an outlet drain (23).

REFERENCES:
patent: 2882895 (1959-04-01), Galeazzi
patent: 3101708 (1963-08-01), Perry et al.
patent: 3695261 (1972-10-01), Emmons
patent: 4640277 (1987-02-01), Meyer et al.

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