User:Pbsouthwood/Manuel Théodore Guillaumet

Manuel Théodore Guillaumet, born in Coulonces, Orne, France, on 11 January 1801, and died in Argentan on 11 May 1852, was a French doctor of medicine who invented the gas pressure regulator in 1838. The pressure regulator is a mechanism which passes a high pressure gas supplied at the inlet to the outlet at a set lower pressure, independently of flow rate, using the outlet pressure as feedback to control the valve opening. His invention was not developed further and the diving regulator was independently invented by Benoît Rouquayrol and Auguste Denayrouze in 1864, and modified by by Cousteau and Gagnan in 1943 for use as a scuba regulator.