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E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
E02B9/02—Water-ways
E02B9/022—Closures
E02B9/025—Closures automatically movable
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/00—Energy generation through renewable energy sources
Y02E10/20—Hydro energy
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FR471408A1914-04-271914-04-27Système de vanne équilibrée sans frottement, pouvant fonctionner automatiquement, pour cours d'eau, rivières, etc.
ExpiredFR471408A
(fr)