OPENING-CLOSING DEVICE

An opening/closing device 1 according to the present invention includes a gate 10 that receives a flow of a sewage W in an upright state, and can fall toward a downstream side of the flow and a first spring 52a that generates a force for bringing the gate 10 into an upright state, wherein the first...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KOMATSU, Hiroshi, ITO, Iwao, ITO, Motonobu, YAMANOUCHI, Kazuhiro, HASEGAWA, Kenji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CESSPOOLS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SEWERAGE SEWERS SOIL SHIFTING WATER SUPPLY
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