FLAP GATE

A flap gate 10 comprises a door 10 that has a rotary shaft 12 and that is raised by rotating around the rotary shaft 12, and an auxiliary drive unit 20 that applies a tension force to the door 10 in order to assist in the action to raise the door 10. The auxiliary drive unit 20 comprises: a counterw...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAKAYASU Kyoichi, SARUHASHI Masaaki, SHIROYAMA Koji, MORII Toshiaki
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES FENCING FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MASTS SOIL SHIFTING SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL
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