Evaluation of J. H. Emerson Co. Double Demand Type Closed-Circuit Oxygen Scuba.
Rept. for 21 Jul 64-11 Jan 65,
NAVY EXPERIMENTAL DIVING UNIT WASHINGTON D C
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The oxygen SCUBA developed under specification requirements of BUSHIPS contract NOBS 88357 was evaluated through a series of laboratory tests of individual components and subjective tests of the complete assembly. The contract called for inclusion of mechanical features not previously included in U.S. Navy designed equipment. These features were a hydrostatically balanced demand system 3000 psi oxygen cylinder with half bottle pressure reserve, breathing bags of dipped neoprene late construction gas control to consist of demand valve, needle control set for .9 of a liter and a by-pass capability of the swimmer to cut the demand system out of the circuit when necessary. The apparatus was found to be capable of supporting a divers oxygen requirements and removal of carbon dioxide for more than three hours. Various components were recommended for inclusion in future apparatus. Other recommendations were made to alter component design where found appropriate. Author
- Life Support Systems