Oxygen breathing controls

Details Oxygen breathing controls Oxygen breathing controls

A - Human Necessities

62

B

A62B 9/02 (2006.01) A62B 7/14 (2006.01) G05D 16/06 (2006.01) A61M 16/20 (2006.01)

Patent

CA 2140642

2140642 9404224 PCTABSCORE2 An oxygen breathing control apparatus employing a first stage regulation module (73), a valving module (4) which couples with the first stage regulation module, a servo regulator module (6) and an aneroid module (7). The servo regulator module with oxygen conservation function during exhalation controls oxygen flow between zero to approximately 34,000 feet, and the aneroid module takes over the control of breathing pressure schedules between 34,000 and 45,000 feet. A flow restrictor screw module (5) is employed in the passage between a control chamber (23) and an inlet chamber (22) of the valving module for regulating the flow between the two chambers.

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