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Publication of FR578364ApublicationCriticalpatent/FR578364A/fr
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K15/00—Check valves
F16K15/02—Check valves with guided rigid valve members
F16K15/04—Check valves with guided rigid valve members shaped as balls
F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
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FR578364D1923-05-181923-05-18Procédé de montage des billes ou clapets de retenue et produits nouveaux en résultant
ExpiredFR578364A
(fr)