US Patent Issued to RTX on March 4 for "Method for CMC airfoil using core tube of rigidized ceramic fabric" (Connecticut Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,144, issued on March 4, was assigned to RTX Corp. (Farmington, Conn.).

"Method for CMC airfoil using core tube of rigidized ceramic fabric" was invented by Christian X. Campbell (West Hartford, Conn.) and Robert A. White III (Meriden, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating an airfoil includes providing an airfoil core tube that is made of a rigidized ceramic fabric, using the airfoil core tube as a mandrel by braiding a plurality of ceramic fiber tows around the airfoil core tube to form one or more braided layers, where the airfoil core tube and the one or more braided layers forming an airfoil preform, and den...