ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,484, issued on Feb. 17, was assigned to HL MANDO Corp. (Pyeongtaek, South Korea).
"Drum brake" was invented by Hatem Shahin (Pfaffenhofen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drum brake of a vehicle according to a present embodiment may include a pair of brake shoes disposed in a drum to be moved to an inner circumferential surface of a brake drum of the drum brake by a wheel cylinder, a backplate which is fixed to a vehicle body and to which each of the brake shoes is rotatably coupled, and a rotation unit configured to assist a restoring force of the brake shoe, wherein the rotation unit includes a moving pin fixed to a side s...