ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,691, issued on Dec. 9, was assigned to MAYEKAWA MFG. Co. LTD. (Tokyo).

"Reciprocating compressor" was invented by Takashige Inaba (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reciprocating compressor includes: a cylinder forming a cylinder chamber; an intake valve disposed around the cylinder chamber; a movable part including either an intake valve seat configured to seat the intake valve or a back member located on an opposite side of the intake valve from the intake valve seat, and configured to move in an axial direction of the cylinder; and an actuator for moving the movable part in the axial direction to change a movable range of the ...