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F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
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FR843384D1938-03-091938-03-09Pompe à piston à commande par transmission hydraulique, travaillant indifféremment à l'air libre ou immergée
ExpiredFR843384A
(fr)
Utilisation de joints souples pour pompes à piston à un ou plusieurs corps, permettant de faire travailler celles-ci indistinctement à l'air libre ou immergées
Ψεκαστηρ λειτουργων δι' αντλιας δια καταβυθιζομενου εμβολου με μεταλλικας βαλβιδας, ως και ειδικον συστημα στερεωσεως της αντλιας επι του δοχειου τουψεκαστηρος.