Patent ID: 8132406

Claim:
A tide activated system for deriving energy from the periodic rise and fall of the level of a body of water, the system comprising: a float/weight barge for rising and falling with the level of the body of the water, the float/weight barge having a cylinder having a chamber, the chamber holding a piston movable in the chamber defining a pair of variable size chambers; a shaft extending through the chamber, the shaft extending through and connected to the piston for moving the piston within the chamber of the cylinder for varying the size of the pair of variable size chambers of the cylinder; a cable guide system having a series of pulleys; and a buoyancy and weight system for maintaining stability of the float/weight barge as the float/weight barge rises and falls; a pumping cable system interacting with at least a pair of pulleys of the cable guide system, the pumping cable system including the shaft extending through the chamber, wherein the movement of the float/weight barge in the rising and falling water moves the piston in the cylinder varying the size of the pair of variable size chambers; a working fluid; a turbine having a working fluid input port, a working fluid output port, and a series of blades for interacting with the working fluid for converting the energy from the working fluid into another form of energy; and a flow control system for directing working fluid forced from the variable size chamber that is decreasing in size as the barge rises or falls towards the turbine and directing working fluid from the turbine to the variable size chamber that is increasing in size as the barge rises or falls wherein the rise and fall of the level of the body of water results in the rise and fall of the barge therein moving the piston back and forth in the cylinder forcing fluid out of one side of the variable size chamber and then other side of the variable size chamber as the other side is filled.