ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,774, issued on Sept. 30, was assigned to Trelleborg Sealing Solutions Albany Inc. (Niskayuna, N.Y.).
"Composite stator sleeve" was invented by David Edgar Hauber (Troy, N.Y.), Graham Ostrander (Clifton Park, N.Y.) and Timothy Miller (Thornton, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a stator sleeve starts with wrapping a cylindrical mandrel with a heated prepreg tape using automated fiber placement. The prepreg tape has a continuous fiber reinforcement within a polymer matrix. Next, cool and remove the cylindrical mandrel from the wrapped prepreg tape resulting in an unfinished cylindrically shaped stator slee...