ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,166, issued on Aug. 11, was assigned to HL MANDO Corp. (Pyeongtaek-si, South Korea).
"Frequency-sensitive shock absorber and method of operating same" was invented by Sangyeon Cho (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a frequency-sensitive shock absorber including a piston rod, a piston valve, and a valve assembly mounted on the piston rod and configured to generate a damping force that changes according to a frequency during a tension stroke, wherein the valve assembly includes a main retainer in which a main chamber communicating with the connection flow path is formed, a housing including a firs...