Importance

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Abstract

A system and method for hydraulic displacement is described which can provide an improved method for raising or lowering a fluid level. The system and method has direct application to inland waterway transport and in particular to canal locks where canal boats traverse inclines through a series of locks. In addition, the invention can provide the access to a marina, which may be raised up above sea level or behind a sea wall defence. The method enables the formation of an improved hydraulic displacement lock capable of a greater vertical displacement with greatly reduced flow of fluid through the lock. The hydraulic displacement lock comprises an enclosed central channel, having sequential fluid storage tanks connected to the central channel. When the central channel is closed at its lower end, opening and closing connecting channels to the sequential storage tanks allows fluid to flow under the force of gravity into or out of the central channel, thereby raising or lowering the level of fluid.

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First Claim