Patent ID: 8796870
Filing Date: 2014-08-05
Classification: F03B,Y02E

Abstract:
1. An electric power generator comprising: (a) first and second water tanks; (b) first and second chambers movable up and down inside the first and second water tanks respectively in opposite directions, each chamber comprising a top wall having an air outlet covered by a pressure valve, and a bottom wall having a plurality of apertures serving as both water inlets and outlets; (c) an electric generator drivably connected to first and second chains from which the first and second chambers are hung respectively; (d) an upper electromagnetic holding device provided at top of each water tank for holding the chamber therein at the top where its pressure valve is opened, water is drawn into the chamber through the apertures and air is expelled out of the chamber through the air outlet, and for releasing the chamber thereby allowing it to drop by gravity to the bottom of the water tank and pull the chain to drive the electric generator; and (e) a lower electromagnetic holding device provided at the bottom of each water tank for holding the chamber therein at the bottom where its pressure valve is closed, air is pumped into the chamber and water is expelled out of the chamber through the apertures, and for releasing the chamber thereby allowing it to float by buoyancy to the top of the water tank; (f) whereby continuous up and down movement of the first and second chambers in opposite directions alternately and continuously drives the electric generator to generate electric power; wherein the generator further comprises: (g) a plurality of ear loops formed around the periphery of each chamber and a plurality of vertical guide posts formed inside each water tank, the vertical guide posts being inserted through corresponding ear loops for slidable engagement therewith.