ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,309, issued on Oct. 28, was assigned to LS MTRON LTD. (Anyang-si, South Korea).
"Hydraulic acoustic attenuator of agricultural tractor" was invented by Jaiyoon Shin (Anyang-si, South Korea), Junguk Lee (Anyang-si, South Korea) and Hanjoon Cho (Anyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a hydraulic acoustic attenuator for an agricultural tractor. The hydraulic acoustic attenuator includes: a first cylinder provided in a hydraulic line, and configured to provide a passage through which oil passes; a second cylinder configured to accommodate the first cylinder and to form a resonance chamber between the fi...