ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,713, issued on Aug. 26, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Reciprocating compressor" was invented by Younghwan Kim (Seoul, South Korea), Jinkook Kim (Seoul, South Korea) and Sangmin Kim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reciprocating compressor may include a ball bearing positioned between a thrust surface of a cylinder block and a thrust surface of a crankshaft. The ball bearing may include a ball cage in a ring shape, a plurality of balls rotatably coupled to the ball cage, at least one washer positioned at least one of between the thrust surface of the cylinder block and the plurality of ...