Compression sleeve for an expandable seal

摘要

An arrangement is disclosed for radially expanding a tubular gasket and including a sliding sleeve and a compression sleeve. The sliding sleeve is formed of a thin membrane of relatively rigid material, such as nylon, hypalon or polyester. The sliding sleeve is positioned adjacent an inner surface of that portion of the tubular gasket to be expanded and serves as a slip plate for the compression sleeve when the sleeves are expanded against the inner surface of the tubular gasket. The invention relates to the forming of the compression sleeve so as to allow it to be locked in any one of a plurality of expanded positions. The locking mechanism is integrally formed with the compression sleeve.