Breathing apparatus

Details Breathing apparatus Breathing apparatus

A - Human Necessities

61

M

137/1.5

A61M 16/00 (2006.01) A62B 7/00 (2006.01) B63C 11/22 (2006.01)

Patent

CA 1090673

ABSTRACT: A demand regulator for use in underwater breathing employs a deflector carried by a valve operating lever for movement between the air outlet in the breathing chamber and the mouthpiece tube to reduce the portion of air supplied directly to the mouthpiece as the air flow is increased.

300731

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