US Patent Issued to RTX on Aug. 18 for "Multi-piece mandrel for building up airfoil structure" (North Carolina, Connecticut, Florida, Pennsylvania Inventors)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,985, issued on Aug. 18, was assigned to RTX Corp. (Farmington, Conn.).

"Multi-piece mandrel for building up airfoil structure" was invented by Jonathan L. Chin (Morrisville, N.C.), Alyson T. Burdette (Gilbertsville, Pa.), Jon Erik Sobanski (Glastonbury, Conn.), Rutva A Patel (Middletown, Conn.), Thiago B. Vieira (Sarasota, Fla.) and Andrew S. Miller (Marlborough, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mandrel includes a mandrel body upon which to build ceramic matrix composite ("CMC") yarns to provide a shear tube for building up an airfoil from CMC fabric layers. The mandrel body formed of at least two mandrel parts interfitting to ...