Vibration control for bellows seal

Claim 1

IN A ROTARY SEAL ASSEMBLY FOR A ROTATING SHAFT MEMBER HAVING A ROTATING RING AND A STATIONARY RING HAVING A SEALINGLY ENGAGING THE ROTATING RING, A CARRIER RING HAVING AN INNER END WALL AND AN OUTER END WALL, SAID STATIONARY SEALING RING BEING SUPPORTED BY SAID CARRIER RING INNER END WALL, AN ANNULAR DAMPENER EXTENSION AXIALLY PROJECTING FROM THE PERIPHERY OF THE CARRIER RING OUTER END WALL, AN EXPANSIBLE ANNULAR BELLOWS SURROUNDING SAID SHAFT MEMBER WITH ONE END AND SEALED TO SAID CARRIER RING OUTER END WALL, A CASING SLEEVE HAVING ONE END SPACED FROM SAID FACING THE CARRIER RING OUTER END WALL, THE OTHER END OF SAID METAL BELLOWS BEING SEALED TO SAID CASING SLEEVE ONE END, SAID CASING SLEEVE HAVING AN INNER DIAMETER GREATER THAN THE OUTER DIAMETER OF SAID CARRIER RING AND DAMPENER EXTENSION, MEANS TO PREVENT THE AXIAL MOVEMENT OF SAID CASING SLEEVE, AND THE LENGTH OF SAID CARRIER RING AND DAMPENER EXTENSION, THE CORRESPONDING OVERLAPPING LENGTH OF SAID CASING SLEEVE, AND THE DISTANCE BETWEEN THE CARRIER RING OUTER DIAMETER AND THE CASING SLEEVE INNER DIAMETER BEING PREDETERMINED SUCH THAT THE CARRIER WING OUTER SURFACE AND THE OUTER DIAMETER SURFACE OF THE DAMPENER EXTENSION WILL ONLY CONTACT THE INNER SURFACE OF THE CASING SLEEVE WHEN THE BELLOWS TENDS TO WOBBLE TO SNUB SAID WOBBLY MOTION WHEREBY SEALING CONTACT BETWEEN THE END FACE OF SEALING RING AND THE ROTATING RING IS MAINTAINED AND VIBRATION OF THE BELLOWS IS PREVENTED.