ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,959, issued on May 27.
"Hydraulic/pneumatic power generating system" was invented by Joseph Hogan (Argyle, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric power generating device includes a hydraulic power unit in fluid communication with hydraulic fluid and a hydraulic piston, the hydraulic piston creating compressed air to drive a pneumatic piston, the pneumatic piston driving a pneumatic motor, the pneumatic motor driving an electric generator/alternator. The electric power generating device can further include a canister air exchange comprising a small diameter pipe wrapped perpendicular inside a small section of larger pipe whi...