Search results
Results from the WOW.Com Content Network
Rebreather diving is practiced by recreational, military and scientific divers in applications where it has advantages over open circuit scuba, and surface supply of breathing gas is impracticable. The main advantages of rebreather diving are extended gas endurance, low noise levels, and lack of bubbles. [ 1 ]
A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user. This differs from open-circuit breathing ...
Lambertsen Amphibious Respiratory Unit. The Lambertsen Amphibious Respiratory Unit (LARU) is an early model of closed circuit oxygen rebreather used by military frogmen. Christian J. Lambertsen designed a series of them in the US in 1940 (patent filing date: 16 Dec 1940) and in 1944 (issue date: 2 May 1944). [1]
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
British military electronically controlled closed circuit rebreather. The CDLSE ( Clearance Divers ' Life Support Equipment) is made by Divex in Aberdeen, Scotland. [1] It is an electronic closed circuit rebreather designed to be silent and non- magnetic. It allows diving to 60 metres (200 ft) using air as diluent, or up to 120 metres (390 ft ...
The Thalmann Algorithm ( VVAL 18) is a deterministic decompression model originally designed in 1980 to produce a decompression schedule for divers using the US Navy Mk15 rebreather. [ 1] It was developed by Capt. Edward D. Thalmann, MD, USN, who did research into decompression theory at the Naval Medical Research Institute, Navy Experimental ...
Video: Setting the bezel of a diving watch to the start time of the dive at the beginning. Divers used this in conjunction with a depth gauge and a decompression table to calculate the remaining safe dive time during dives. Dive computers rendered this cumbersome procedure unnecessary.
Momsen lungs on display on USS Drum. The Momsen lung was a primitive underwater rebreather used before and during World War II by American submariners as emergency escape gear. It was invented by Charles Momsen, who worked on it from 1929 to 1932. [1] Submariners trained with this apparatus in an 80 ft (24 m) deep Escape Training Tank at New ...