ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,099, issued on July 29, was assigned to Carrier Corp. (Palm Beach Gardens, Fla.).
"Seal assembly for compressor" was invented by Vishnu M. Sishtla (Manlius, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A seal assembly for a compressor includes at least one impeller. At least one seal land is associated with the impeller including a plurality of radially stepped surfaces. A seal is associated with each of at least one seal lands. The seal includes a plurality of radially stepped projections corresponding to the plurality of radially stepped surfaces on at least one seal land. At least one actuator is configured to move at least one seal land r...