A method is disclosed for securing a repair sleeve within a tubular fluid conveying conduit. The sleeve is positioned within the tube so that it extends coextensive with a region of degraded tube wall and partially beyond the axial extremes of the degraded area. A radially outwardly directed force is...http://www.google.de/patents/US4069573?utm_source=gb-gplus-sharePatent US4069573 - Method of securing a sleeve within a tube