E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
E02B 15/06 (2006.01) E02B 15/04 (2006.01)
Patent
CA 2224264
The invention relates to a device of a valve mechanism for self-expanding booms. The mechanism is preferably a mechanical expansion device that folds out the boom so that air flows into the boom to fill the boom. When the boom is folded, the air is pressed out of the boom. A novel feature is an automatic control mechanism that is adapted to permit an inflow of air into the boom when the boom is expanded and to permit an outflow of air when the boom is collapsed, rolled up and stored. The control mechanism is affected by the relative position between the valve mechanism and other parts of the boom when the boom is in the expanded or collapsed position.
La présente invention concerne un système de valve pour barrages flottants autogonflables. La variante préférée est un mécanisme de gonflage provoquant le déploiement du barrage par admission d'air. Le pliage du barrage flottant implique l'expulsion de l'air par pression. Autre innovation: un mécanisme de commande automatique conçu pour introduire dans le barrage flottant l'air nécessaire à son déploiement et en expulser l'air pour le dégonfler, le plier et le ranger. Le mécanisme de commande tient compte de la position de la valve et d'autres pièces du barrage flottant quand celui-ci est en phase de gonflage ou de dégonflage.
Expandi Systems Ab
Fetherstonhaugh & Co.
LandOfFree
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