ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,062, issued on Dec. 23, was assigned to Schaeffler Technologies AG & Co. KG (Herzogenaurach, Germany).
"Harmonic drive" was invented by Kyungho Park (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A harmonic drive is disclosed that includes a flexible ring element, which can be deformed in a locally radial manner in the circumferential direction by a wave generator with a non-round outer peripheral surface and which includes an outer toothing, and a rigid ring element with an inner toothing. The outer toothing of the flexible ring element at least partly meshes with the inner toothing of the rigid ring element in order to transmit a ...