Born 21 Jun 1896; died 25 May 1967 at age 70.

#Vice-Admiral Charles Bowers #Momsen was an #American #inventor and navy officer who #created the #MomsenLung, an #underwater #breathing device for escape from disabled #submarines.

It was an oblong rubber bag hung from the neck and strapped around the waist. A tube led from the bag to a mouthpiece to inhale #oxygen and a return tube through a canister of soda lime inside the canister to remove exhaled carbon dioxide and then recycle the air. This provided air for a gradual ascent to avoid the “bends.”

In Aug 1937 he became Officer in Charge of Experimental Diving at the NavyYard, Washington, D.C., where he developed new #decompression tables and supported proposed use of a helium and oxygen mixture for deep #diving.

Momsen received the #DistinguishedServiceMedal (1933).

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