US Patent Issued to VALQUA on Aug. 25 for "Dust seal ring" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,501, issued on Aug. 25, was assigned to VALQUA LTD. (Tokyo).

"Dust seal ring" was invented by Mitsuru Minami (Gojo, Japan), Yuuichirou Yoshimoto (Gojo, Japan) and Akira Ueda (Gojo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dust seal ring includes a body portion of an approximately rectangular shape, a first lip extending, on an inner surface in a radial direction of the body portion, while inclining inwardly away from the body portion on one side in a direction of extension of a central axis, and a second lip extending, on the inner surface in the radial direction of the body portion, while inclining inwardly away from the body portion ...