ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,051, issued on Sept. 30, was assigned to PARALLOID GEAR Co. LTD. (Gimpo-si, South Korea).
"Single screw compressor" was invented by In Hwan Seol (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed is a single screw compressor having an independent mechanical rotational force transmission unit between a rotation shaft of a main screw and a rotation shaft of a star wheel. The rotational force transmission unit has the same transfer ratio as a rotation ratio at which the main screw and the star wheel mesh with each other. The rotational force transmission unit may include: a first gear which is a double-enveloping worm that is ...