Patent ID: 7956479
Filing Date: 2011-06-07
Classification: F03B,F05B,Y02E

Abstract:
1. Apparatus for generation of electricity from reciprocating motion of floats caused by waves, the apparatus comprising, in combination: a) a pier mounted point absorber superstructure assembly situated within and above a portion of ocean, sea, gulf, bay or lake; b) a plurality of floats welded to form a plurality of separate first cylinders, each first cylinder comprising a domed top end and a domed bottom end and a central tube seam welded to the domed cylinder ends, the domed top end for each cylinder comprising an air valve; c) a push rod assembly extending longitudinally through each said central tube seam welded to the first cylinder ends, the push rod assembly comprising a bottom end and a top end; d) piston assembly within the pier mounted point absorber superstructure assembly and attached to each push rod assembly top end; e) guide bearings fastened to each float domed top end, the guide bearings sized to receive and vertically align the moveable push rod assembly with the piston assembly; f) guide bearings affixed to the pier mounted point absorber superstructure assembly, the guide bearings sized to receive and align the moveable push rod assembly with the piston assembly; g) a travel stop affixed to the push rod above each first cylinder top end; h) a plurality of second cylinder housings within the pier mounted point absorber superstructure assembly, each second cylinder housing machined to receive and house each vertically aligned piston assembly and push rod assembly top end, the second cylinder housing comprising a threaded top end; i) a threaded pipe flange threaded onto the top end of each second cylinder housing, the threaded pipe flange comprising two rows of concentric bolt circles, the bolt circles arranged as an outer row and an inner row, the outer row of bolt circles comprising fastening means for bolting the second cylinder housing to a structural support and the inner row of bolt circles comprises fastening means for bolting a custom “Y” fitting to the threaded pipe flange, each said custom “Y” fitting comprising two one-way check valves, one said valve serving as an intake valve and the other said valve serving as an output valve; j) at least one hydraulic fluid reservoir, each such reservoir comprising a volume of hydraulic fluid; k) at least one hydraulic motor; l) at least one electrical generator, each such electrical generator selected to match the frequency, voltage and kilowatt rating of an anticipated electrical load; m) at least one intake manifold assembly connecting the at least one hydraulic fluid reservoir through intake valves to the second cylinder housings; n) at least one power stroke manifold assembly connecting the second cylinder housings through output valves to the at least one hydraulic motor; o) a speed control coupling between each at least one hydraulic motor and each at least one electrical generator; p) closed loop pipeline assembly connecting the at least one hydraulic motor to the at least one hydraulic fluid reservoir; q) an electrical grid assembly connected to the at least one electrical generator; whereby an upward wave motion through the floats forces each float to travel upward on the corresponding pushrod such that the to float end contacts the corresponding pushrod travel stop and drives the pushrod upwards into the piston assembly to displace the hydraulic fluid in the closed loop hydraulic system into at least one hydraulic motor, that converts the kinetic energy of linear float motion to rotary motion to drive at least one electrical generator, and a downward wave motion allows the float to freely slide down on the push rod such that the hydraulic fluid in the closed loop hydraulic system is allowed to drive the piston assembly and connected push rod downwards; and r) means for backup or emergency renewable clean energy.