Breathing apparatus

Details Breathing apparatus Breathing apparatus

1981-07-06

1984-05-08

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

137494, B63C 1116, A62B 704

Patent

active

044468598

ABSTRACT:
A demand regulator for use in underwater breathing employs a longitudinally movable tubular valve member having a transversely opening outlet orifice which is moved relative to the breathing port of the regulator as the valve member is moved axially between the fully opened and fully closed positions.

REFERENCES:
patent: 2893386 (1959-07-01), Sajeck
patent: 4041977 (1977-08-01), Matsuno
patent: 4140113 (1979-02-01), Pedersen
patent: 4224938 (1980-09-01), Hilal

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