Patent ID: 8267378

Claim:
An artificial hydraulic lift system for fluid pumping or Industrial hoisting comprising: a triple cylinder comprising a housing have a top and bottom sections with the top section being an plunger opening and a bottom section with two oil connection lines, within said housing are a chamber with a diamenter, an annular piston dividing said chamber diameter, and said annular pistion connectod to a plunger with a second lesses diameter and which movably extends through said plunger opening, and an rod being an oil up chamber extending through said annular piston and said plunger; a gas over oil accumulator comprising a housing having a top section with an gas line and a botom section with the oil line, and said housing being dividing into an oil section and gas section with a movable pistion inbetween and said gas over oil accumulator' oil line being connected to said oil connection line of said triple cylinder; an auxiliary gas accumulator comprising a housing with a gas line which is connected to the gas over oil accummulor said gas lines connected to said top section; and a pilot operated check valve being connected inbetween said gas over oil accumulator and said triple cylinder.