US Patent Issued to NTN on July 7 for "Plunging type constant velocity universal joint" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,491, issued on July 7, was assigned to NTN Corp. (Osaka, Japan).

"Plunging type constant velocity universal joint" was invented by Masazumi Kobayashi (Shizuoka, Japan) and Tatsuro Sugiyama (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plunging type constant velocity universal joint has six torque transmission balls, and a curvature center of a spherical outer peripheral surface and a curvature center of a spherical inner peripheral surface of a cage are offset toward opposite sides in an axial direction with respect to a joint center. The plunging type constant velocity universal joint is used at a normal operating angle of from 8...