ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,418, issued on Oct. 14, was assigned to NOK Corp. (Tokyo).
"Sealing device and sealing structure" was invented by Yuya Sakano (Fukushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing device and a sealing structure with which an improvement is achieved in terms of suppressing the infiltration of foreign matter such as muddy water. An elastic seal includes a main lip, a side lip, and an intermediate lip, and a second annular recess formed along an outer peripheral surface of the side lip is recessed in a central axis direction of an inner ring and toward a sealing target space side by a greater depth than a first annular recess forme...