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Paul Bowers asks: >What is the current technology regarding the >use of carried, then vaporized LOX as a source ? Has this concept been >tested ? In the late 60's inventors Jim Woodberry and Jordan Klein developed a series of "liquid air" breathing systems successfully dived to 200ft. Various iterations were developed, changing storage/insulation containers mainly, until the final version, the X-5. Using a series of coils to warm the 79/21 liquid back into a breatheable gas, they were able to access the mix thru a standard 2nd stage regulator, putting the devices thru rigorous excercises to subject them to a wide variety of depths and work levels. The tanks were "Dewar" bottles -- aka thermos-type bottles -- nesting stainless steel or aluminum alloy tanks with vacuum and open cell insulation between the them. The final, single tank version reportedly weighed 22lbs., had an internal capacity of 6.5 litres, holding the breathing supply in a liquid state for 6 days. This gave the diver the ability to operate at 30ft. for approximately 5 hours. Projected price, once they came to market, was $350.00. Source: SKIN DIVER, December 1967 Mr. Kline, backer for this project, won the Academy Award for his design work and filming in Thunderball. He and his son, Jordy Jr., have won a great number awards for underwater filming in many popular television, advertising, and feature film productions and reside in Ocala, FL. Christopher A. Brown The Technical Diving Video Library www.nettally.com/techvid/techvid.html 1-800-373-7222 (US & Can.); Outside US:904-942-7222; Fax:904-942-1240 Life is short -- this is not a rehearsal. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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