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Publication of FR704210ApublicationCriticalpatent/FR704210A/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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Mechanical Engineering
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FR704210D1930-10-211930-10-21Dispositif pour des ressorts à boudin
ExpiredFR704210A
(fr)