Exhaust regulator valve for push-pull diving system

Details Exhaust regulator valve for push-pull diving system Exhaust regulator valve for push-pull diving system

1976-04-26

1977-07-26

Howell, Kyle L.

Surgery

Truss

Pad

13750518, 251DIG1, 13750541, A62B 700

Patent

active

040375943

ABSTRACT:
A diving helmet exhaust regulator valve maintains helmet pressure substanlly constant in a push-pull system wherein breathing gas is supplied under pressure (push) at a constant rate and respired gas is exhausted to a low pressure (pull) conduit for return to a regenerator. The regulator valve is characterized by a throttling valve member operated by a piston that is acted upon by ambient sea pressure and helmet pressure independently of pressures in the upstream exhaust passages, or of exhaust flow rate.

REFERENCES:
patent: 2663122 (1953-12-01), Cornelius
patent: 2707966 (1955-05-01), Taplin
patent: 2887123 (1959-05-01), Becker
patent: 3968795 (1976-07-01), O'Neill et al.

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