ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,920, issued on July 8, was assigned to RTX Corp. (Farmington, Conn.).
"Turbine engine abradable systems" was invented by Christopher W. Strock (Kennebunk, Maine) and Kevin C Seymour (Riviera Beach, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A turbine engine has: a first member (22) having a surface bearing an abradable coating, the abradable coating (36) being at least 90% by weight ceramic; and a second member (24) having a surface bearing an abrasive coating. The abrasive coating (56) has a metallic matrix (64) and a ceramic oxide abrasive (66) held by the metallic matrix, the first member and second member mounted for relative rotation wi...