US Patent Issued to Washington State University on May 12 for "Stem controlled valve for cryogenic conditions" (Washington Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,764, issued on May 12, was assigned to Washington State University (Pullman, Wash.).

"Stem controlled valve for cryogenic conditions" was invented by Jacob W. Leachman (Pullman, Wash.) and Michael S. Wood (Pullman, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stem controlled valve uses a stack which includes a plurality of spacing discs and a plurality of sealing discs, where the spacing discs are interdigitated between the sealing discs, or uses a monolithic plug or inner wall of a valve seat with spaced apart extension areas. The sealing discs or extension areas are slightly larger in diameter than a valve seat they fit within or plug wal...