Patent ID: 6210072
Filing Date: 2001-04-03
Classification: E02B

Abstract:
A method of protecting part of a coast against erosion, which comprises the steps of:placing outside a coastline in a wave breaking zone a device to dampen water flow generated by breaking waves in the wave breaking zone,using the device to dampen the water flow generated by said breaking waves, said device shaped as an elongated fin with a longitudinal axis lying generally in a horizontal plane parallel to the water surface,supporting the fin with a suspension arrangement so that it can swing in the horizontal plane,adjusting the fin in the horizontal plane so as to cause the longitudinal axis of the fin to be at an angle relative to the coastline for deflecting from said water flow a component that counteracts with a generally coast-parallel water flow component originating from said breaking wave that is not parallel with the coastline,increasing the fin angle relative to the coastline when the wave angle relative to the coastline increases, anddecreasing the fin angle relative to the coastline when the wave angle relative to the coastline decreases.