Breathing valve assembly with diaphragm control of the...

Details Breathing valve assembly with diaphragm control of the... Breathing valve assembly with diaphragm control of the...

A - Human Necessities

61

M

137/1.54

A61M 16/00 (2006.01) A62B 9/02 (2006.01) B63C 11/22 (2006.01)

Patent

CA 1163523

ABSTRACT A breathing apparatus having an exhaust valve and a diaphragm actuated inlet valve, wherein the exhaust valve includes a sealing surface against which the diaphragm normally is sealingly engaged to close the opening and from which the diaphragm is disengaged upon exhalation to open the exhaust valve.

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