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Émile Gagnan (1900 – 1984) was a French engineer and, in 1943, co-inventor with French Navy diver Jacques-Yves Cousteau of the Aqua-Lung, the diving regulator (a.k.a. demand-valve) used for the first Scuba equipment.
Emile Gagnan was born in Burgoyne, France, in 1900. He earned a technical degree and began working as an engineer for L’aire Liquide, specializing in high-pressure pneumatic design. He began working with Cousteau to create a demand valve for what was to become the Aqua-lung system.
…Cousteau and the French engineer Émile Gagnan developed the first fully automatic compressed-air Aqua-Lung. Cousteau also did important work on the development of underwater cameras and photography and popularized the sport in Le Monde du silence (1952; The Silent World), written with Frédéric Dumas, and in other writings and television…
Oct 22, 2015 · Émile Gagnan – Co-Inventor of the Diving Regulator The diving world owes a debt to genius of Émile Gagnan and Jacques-Yves Cousteau, a French Navy diver. Both men developed the diving regulator – also known as the demand valve – which is responsible for reducing pressurized breathing gas into ambient pressure then sends this back to the ...
Emile Gagnan and Jacques Cousteau together invented the modern demand regulator used in underwater diving. Their invention allowed for the equipment known as the Aqualung, or self-contained underwater breathing apparatus (SCUBA), enabling safer and deeper dives.
The Aqua-Lung was invented in France during the winter of 1942–1943 by two Frenchmen: engineer Émile Gagnan and Jacques Cousteau, who was a Naval Lieutenant (French: lieutenant de vaisseau). It allowed Cousteau and Gagnan to film and explore underwater more easily.
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Emile Gagnan was born in France and after graduating from technical school, went to work as an engineer for a large gas-supply firm. Gagnan was a prolific inventor and had developed everything from mechanical razors to butane regulators for automotive fuel systems.
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