ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,102, issued on Feb. 3, was assigned to RTX Corp. (Farmington, Conn.).
"3D woven space filler" was invented by Kathryn S. Read (Marlborough, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ceramic fiber preform includes a plurality of ceramic fiber plies arranged to define a wall, a void adjacent the wall, and an insert positioned within the void. The insert includes a first region having a first porosity and a second region in physical contact with the first region and having a second porosity. The first region and second region are formed from a woven ceramic material, the wall has a wall porosity, and the first porosity is less than at least...