ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,406, issued on Nov. 4, was assigned to DAS Co. LTD. (Gyeongju-si, South Korea).
"Brake device for vehicle seat" was invented by Jae Ho Kim (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A brake device for a vehicle seat, which includes a tooth plate installed on an unlock member and coupled to a pinion shaft in a serration manner to constrain rotation of the pinion shaft. Therefore, even when the rotational constraint force by brake rollers is reduced due to the repeated loading, the rotation of the pinion shaft is reliably suppressed by the tooth plate, thereby preventing seat sagging."
The patent was filed on Dec. 21, 2022, ...