Patent ID: 6371008
Filing Date: 2002-04-16
Classification: F04B,Y10T

Abstract:
A pump for drawing water from an underground water source to the earth's surface, said pump comprising:a tube; at least one piston operatively associated with said tube to draw water from a said source; a rod operatively supporting said piston, said rod having one rod end, said rod reciprocatingly movable along an axis of movement; two connecting rods, each said rod having a first connecting rod end and a second connecting rod end, each said connecting rod having a first said connecting rod end connected to said one rod end; two toothed rotatable wheels, each said wheels having a center, each said wheel mounted on a respective axis, said axes symmetrically located relative to said axis of movement, said wheels rotatably engaging each other for rotation in respective opposite directions; two rollers, each said roller mounted at a respective mounting point on a respective said wheel, said mounting points respectively equidistantly spaced from said respective centers of said respective wheels; two levers, each said lever having a first and a second lever end, each said lever having a first said respective lever end respectively connected to a respective said second connecting rod end, each said respective lever slidably connected to a said respective roller, each said lever pivotally mounted on respective pivot points which are located intermediate said respective first and second lever ends; and means for drivingly rotating said wheels.