ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,177, issued on Feb. 10, was assigned to Rotojar Innovations Ltd. (Aberdeen, Great Britain).
"Reciprocating drive apparatus" was invented by Peter Barnes Moyes (Aberdeen, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reciprocating drive apparatus (10) comprises a housing (12) and a mandrel (14), wherein the mandrel (14) and the housing (12) are configurable to be rotated relative to each other. The apparatus (10) further comprises a reciprocating piston (16) mounted within a piston housing (18) to define a piston chamber (20a), wherein the piston (16) is moveable in reverse first and second axial directions (A,B), and a rotary valve ...