ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,421, issued on March 24, was assigned to HL MANDO Corp. (Pyeongtaek-si, South Korea).
"Drum brake with rotatable brake shoe assembly" was invented by Hatem Shahin (Pfaffenhofen, Germany), Kai Braun (Friedrichsdorf, Germany) and Lothar Wagner (Simmern, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a drum brake assembly for braking a wheel a motor vehicle that rotates about a rotation axis,with: a brake drum having a back wall section extending at an angle to the rotation axis and a circumferential wall section, at least one brake shoe assembly,wherein each of the brake shoe assembly and brake drum has a contact port...