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Cis-Lunar originally aimed to develop space suit kits, but the early 2000s recession reportedly hindered its ability to finance the mass production of the MK5 rebreather, which featured designs intended to reduce system and mission failures. [2] In 2005, the Swedish diving equipment manufacturer Poseidon acquired Cis-Lunar's technology.
Cis-Lunar – Manufacturer of electronically controlled closed-circuit rebreathers for scuba diving; Citizen Watch – Core company of a Japanese global corporate group based in Tokyo, Japan – Dive computers and diving watches. [24] [25] Clouth Gummiwerke AG of Cöln Nippes, Germany – Standard diving equipment.
MK1 rebreather [ edit ] In December 1987 Bill Stone became known to the wider diving community when he demonstrated the Cis-Lunar MK1 model rebreather at Wakulla Springs , Florida in a scuba dive which lasted 24 hours and used only half of the system's capacity.
Research and development of carbon dioxide sensors goes back at least as far as the early 1990s when Teledyne Analytical Instruments and Cis-Lunar Development Laboratories worked on a sensor for the Cis-Lunar MK-III rebreather, which was accurate in laboratory conditions but in the field susceptible to high humidity and condensation causing ...
The Mk15.5 was his rebreather of choice for dives deeper than 150 metres (500 ft). For extended dives in caves shallower than 150 m, [citation needed] Shaw used his Cis-Lunar since he believed it had superior redundancy capabilities, but could not cope with extreme depths.
Cis-Lunar – Manufacturer of electronically controlled closed-circuit rebreathers for scuba diving Civil liability in recreational diving – Legal duty of care, negligence and liability in recreational diving
The interior of the Apollo PLSS Diagram of the A7L PLSS and OPS, with interfaces to the astronaut and the Lunar Module cabin. The portable life support system used in the Apollo lunar landing missions used lithium hydroxide to remove the carbon dioxide from the breathing air, and circulated water in an open loop through a liquid-cooled garment, expelling the water into space, where it turned ...
Christian James Lambertsen (May 15, 1917 – February 11, 2011) was an American environmental medicine and diving medicine specialist who was principally responsible for developing the United States Navy frogmen's rebreathers in the early 1940s for underwater warfare.