JPS611693B

PURPOSE:To obtain the city-water meter employable for a long period by providing in a water pipe blade wheels having magnets at the tips of rotary shafts thereof, by transducing rotation of the magnets into electromotive force by a power generating element and by charging a battery therewith. CONSTI...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YOSHINAGA TOORU, MYOSHI AKYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TESTING
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