US Patent Issued to MITUTOYO on Oct. 7 for "Dustproof seal structure" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,756, issued on Oct. 7, was assigned to MITUTOYO Corp. (Kawasaki, Japan).

"Dustproof seal structure" was invented by Hisayoshi Sakai (Kanagawa, Japan) and Tsutomu Ugajin (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dustproof seal structure includes a rotor assembly and a stator assembly rotatably supporting the rotor assembly. The stator assembly forms a horizontal thrust aerostatic bearing between a lower surface of the thrust plate and an upper surface of the stator assembly when compressed air is supplied between the lower surface of the thrust plate and the upper surface of the stator assembly. The thrust plate and the stator a...