ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,383, issued on Feb. 10, was assigned to SUMITOMO HEAVY INDUSTRIES LTD. (Tokyo).
"Friction transmission device" was invented by Toshiya Nagumo (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A friction transmission device includes: an input trajectory ring; a planetary rolling body that is disposed about a rotation axis line of the input trajectory ring and that comes into contact with the input trajectory ring; an output trajectory ring that comes into contact with the planetary rolling body and that is connected to an output member; and a first support trajectory ring and a second support trajectory ring that come into contact with ...