US Patent Issued to HL MANDO on July 21 for "Vibration control device and frequency-sensitive shock absorber having the same" (South Korean Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,214, issued on July 21, was assigned to HL MANDO Corp. (Pyeongtaek-si, South Korea).

"Vibration control device and frequency-sensitive shock absorber having the same" was invented by Kyu Do Kim (Seoul, South Korea) and Se Won Cho (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a vibration control device and a frequency-sensitive shock absorber having the same. A vibration control device includes a sub-piston rod coupled to an end of a piston rod, a pilot valve unit penetrated by and coupled to the sub-piston rod, in which pressure is formed by a fluid introduced through the sub-piston rod, and...