Patent ID: 7594780

Claim:
A damping plate comprising a first plate for being attached to the submerged end of a spar-like float in a body of liquid and said spar like float being subject to movement in the vertical directions, said first plate of generally solid flat configuration having a pair of oppositely facing major surfaces extending transversely of the up down movement of the spar-like float, and vertically extending structures mounted on said major surfaces of said first plate for increasing the volume of liquid pushed aside during movements of the plate through the liquid said vertically extending structures defining an enclosure whose sides are solid and of predetermined height for capturing a volume of water which is a function of the enclosed surface area of the damping plate multiplied by the height of the vertically extending structures for increasing the effective mass of water pushed during the up down movement of the damping plate through the water; said vertically extending structures having streamlined curved configurations for minimizing turbulence and the amount of drag created by the up down movement of the damping plate in the body of liquid.