Patent ID: 6669408
Filing Date: 2003-12-30
Classification: E02B,F15D

Abstract:
A device to reduce load created by flowing fluid on a piling comprising:a bi-directionally tapered hydrodynamic foil having a traverse tube sized to fit around a piling in a spaced-apart relationship with respect to said piling, said hydrodynamic foil having a tapered leading vane portion located on one side of said traverse tube and extending to diametrically opposed sides thereof, said hydrodynamic foil having a tapered trailing vane portion located on the opposite side of said traverse tube as said tapered leading vane portion, said tapered leading vane portion having a leading edge and said tapered trailing vane portion having an extended tapered shape of greater lateral area than said tapered leading vane portion to orient said leading edge of said tapered leading vane portion into the direction of flow of fluid flowing on said piling; and upper and lower collars secured to said piling to contact said traverse tube, said upper and lower collars supporting and guiding said bi-directionally tapered hydrodynamic foil during rotation around a longitudinal axis of said piling to maintain said spaced-apart relationship between said traverse tube and said piling.