ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,753, issued on Dec. 9, was assigned to MAYEKAWA MFG. Co. LTD. (Tokyo).
"Valve seat unit" was invented by Takashige Inaba (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve seat unit according to an embodiment of the present disclosure, includes: a base; a valve seat including a seat surface for a valve to sit on and configured separately from the base; and a bolt securing the valve seat to the base. A head portion of the bolt is located between the seat surface and a seat back surface of the valve seat located opposite to the seat surface."
The patent was filed on Dec. 12, 2022, under Application No. 18/716,321.
*For further information,...