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Publication of FR1027610ApublicationCriticalpatent/FR1027610A/fr
F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
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FR1027610D1950-11-131950-11-13Perfectionnements apportés aux dispositifs élévateurs de liquide, notamment à ceux pour puits d'eau
ExpiredFR1027610A
(fr)
Perfectionnements apportés aux dispositifs anti-retour pour circulation de fluide, notamment aux dispositifs de retenue pour canalisations ascendantes de liquide