Sealing device with shape memory means

摘要

A sealing device (1) is constituted at least in part by a shape memory material and it is so arranged at to go into an expanded condition when its temperature passes through a predetermined threshold value, thereby obtaining an enhanced sealing effect, thanks to the matching of any settling of the parts between which the device is mounted, and thereby reducing or avoiding the risk of creep of the material constituting the sealing device or of non uniform contact pressure which may be generated by said settling.