US Patent Issued to RTX on April 14 for "Forming gas turbine engine airfoils from CMCs with a kickback to facilitate mandrel removal" (North Carolina, Connecticut Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,267, issued on April 14, was assigned to RTX Corp. (Farmington, Conn.).

"Forming gas turbine engine airfoils from CMCs with a kickback to facilitate mandrel removal" was invented by Jonathan L. Chin (Morrisville, N.C.), Andrew S. Miller (Marlborough, Conn.), Justin C. Pratt (Marlborough, Conn.) and David J. Wasserman (Hamden, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "CMC yarn is formed on the outer surface of a mandrel, generally tracking the shape of the mandrel outer shape. CMC fabric layers are formed outwardly of the shear tube to form a desired shape of a final airfoil leading edge. The mandrel, and the shear tube are provided with ...