US Patent Issued to HL MANDO on Nov. 3 for "Piston valve assembly and frequency sensitive shock absorber with the same" (South Korean Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,828, issued on Nov. 3, was assigned to HL MANDO Corp. (Pyeongtaek-si, South Korea).

"Piston valve assembly and frequency sensitive shock absorber with the same" was invented by Kyudo Kim (Seoul, South Korea) and Kwangduk Baek (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston valve assembly of a frequency sensitive shock absorber includes a piston valve main body mounted on the piston rod and having a piston inlet flow path formed therein in communication with a rebound chamber, a piston main retainer having a piston main chamber formed therein in communication with the piston inlet flow path, a piston main valve configur...