Oxygen breathing controls

Details Oxygen breathing controls Oxygen breathing controls

1992-08-12

1994-09-20

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820418, 12820426, 137486, 13750536, A62B 902

Patent

active

053480015

ABSTRACT:
The oxygen breathing control of the present invention for supplying oxygen to a user employs a first stage regulation module, a valving module which couples with the first stage regulation module, a servo regulator module and an aneroid module. 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 schedule between 34,000 to 45,000 feet. A flow restrictor screw module is employed in the passage between a control chamber and an inlet chamber of the valving module for regulating the flow between the two chambers.

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U.S. application Ser. No. 07/739,595, filed Aug. 1, 1991, Danon.
U.S. application Ser. No. 07/930,149, filed Aug. 13, 1992, Danon.
U.S. application Ser. No. 07/932,715, filed Aug. 20, 1992, Danon.

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