ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,962, issued on Dec. 16, was assigned to I-JACK TECHNOLOGIES Inc. (Moosomin, Canada).

"Driving fluid cylinder and driven fluid cylinder and buffer" was invented by Dan McCarthy (Moosomin, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided to adaptively control a hydraulic fluid supply to supply a driving fluid for applying a driving force on a piston in a gas compressor, the driving force being cyclically reversed between a first direction and a second direction to cause the piston to reciprocate in strokes. During a first stroke of the piston, a speed of the piston, a temperature of the driving fluid, and a load p...