US Patent Issued to SMC on Sept. 9 for "Shaft sealing structure" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,864, issued on Sept. 9, was assigned to SMC Corp. (Tokyo).

"Shaft sealing structure" was invented by Takayuki Murai (Moriya, Japan) and Takashi Arakawa (Nagareyama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A shaft sealing structure includes a V-packing; a first guide bush attached to an inner circumference of the holder; and a scraper arranged at an end of the holder. The V-packing is formed of a thick-walled top portion, a thin-walled inner side skirt portion extending diagonally inward from the top portion, and a thin-walled outer side skirt portion extending diagonally outward from the top portion. The inner side skirt portion slidab...