ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,494, issued on Sept. 23, was assigned to HITACHI ASTEMO LTD. (Hitachinaka, Japan).
"Thermal caulking joined body" was invented by Kumiko Yoshinaga (Hitachinaka, Japan) and Satoshi Uchida (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A caulking pin (15) is inserted into a mounting hole (21) provided in a metal case body (3), and the end portion of the caulking pin (15) is thermally caulked with a welding tip (24) to form a mold forming portion (17). A surplus absorption recess (31) is formed by enlarging the opening end of the mounting hole (21), and surplus resin is absorbed. The surplus absorption recess (31) is positioned ins...