A Breathing Oxygen Storage Dewar
In an effort to further improve on liquid oxygen converters that are now in use, the Cryogenic Engineering Laboratory of the National Bureau of Standards undertook the job of developing and testing an eight liter liquid oxygen storage dewar in accordance with specifications issued by the Wright Air Development Center at Wright-Patterson Air Force Base, Ohio. The main items of the specifications stated that the converter be built from two concentric, stainless steel spheres, that the weight of the converter should not exceed 27 pounds and that the evaporation loss with the converter vented to the atmosphere shall not exceed three pounds of oxygen in 24 hours.
KeywordsOuter Sphere Electrical Lead Relief Valve Liquid Oxygen Pressure Closing
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