Sealing device

Claim 1

A cylindrical sealing device which seals in an excellent manner though easy to mount and remaining reliably in place without extra fixation means being provided for sealingly connecting coaxial conduits and the like of a conduit arrangement including a first conduit and a second conduit sealed mutually in situ, wherein said second conduit is disposed a predetermined distance coaxially in said first conducit to provide between them an annular space adapted to receive said sealing device radially between the first and second conduits having different diameters, said sealing device comprising in combination: a longitudinal hollow body member of elastic material uncompressible per se and including two separate parts together being cylindrical in complementary relationship to each other with a central axis therein; a plurality of first unflexible projections only compressibly arranged circumferentially on and projecting radially outwardly from said hollow body member, with the outer diameter of said first projections being selected to be greater than the inner diameter of said first conduit to effect said sealing connection; and a plurality of second unflexible projections only compressibly arranged circumferentially in and projecting radially inwardly towards the central axis of said hollow body member, said second projections projecting to an imaginary circle having a diameter which is at most equal to the outer diameter of said second conduit, with at least one of said first projections and at least one of said second projections being arranged when pressed together to transmit compression forces at least in part in a common radial section of a predetermined axial length.