US Patent Issued to RTX on Oct. 7 for "Auxetic materials and structures for ceramic matrix composite airfoil mandrels" (Connecticut Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,008, issued on Oct. 7, was assigned to RTX Corp. (Farmington, Conn.).

"Auxetic materials and structures for ceramic matrix composite airfoil mandrels" was invented by David J. Wasserman (Hamden, Conn.) and James T. Roach (Vernon, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating a ceramic matrix composite component includes fabricating a ceramic preform, the preform comprising a hollow portion with an internal cavity extending along a first axis from a first end to a second end of the hollow portion, supporting the hollow portion with an auxetic mandrel disposed within and the internal cavity and coaxial with the hollow por...