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Breathing apparatus and installation providing protection against hypoxia - Patent 6923183 (2484 words) |
 | Breathing apparatus according to claim 3, wherein said connecting means further comprise valve means for preventing initial filling of said buffer plenum from said generator until an oxygen content of the gas delivered by the generator exceeds a predetermined threshold. |
| Breathing apparatus according to claim 3, wherein said generator is a common bank of OBOGS also for delivery of oxygen-enriched air to a manifold supplying passenger masks in the aircraft. |
| Breathing apparatus according to claim 3, wherein an electronic module is arranged to control a solenoid valve so as to put a manifold into communication with a check valve on receiving a signal indicating that the door of the box has been opened. |
| Oxygen Breathing Apparatus (380 words) |
| The type A-4 oxygen breathing apparatus (OBA) is used throughout the Navy. |
| The breathing bag contains the oxygen that is generated by the canister for you to breathe. |
| One breathing tube transports the oxygen from the breathing bag to the facepiece (fig. |
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