Patent ID: 6193238
Filing Date: 2001-02-27
Classification: F16L

Abstract:
A sealing device comprising: two substantially conical or cylindrical sealing surfaces which are introducable one into the other in an axial direction so as to define a substantially concentrical sealing position in which the sealing surfaces define between themselves an annular sealing space; a sealing element consisting essentially of an elastic material compressed in the sealing space between the sealing surfaces and bound at least in an axial direction to a first of said sealing surfaces wherein a second sealing surface of said sealing surfaces is formed with at least one projection, the sealing element constituting in cooperation with said first sealing surface at least one pair of portions positioned adjacent each other in an axial direction which, under the influence of the projection of said second sealing surface, present different compression resistances, said projection cooperating with a portion of said pair of portions of the sealing element having the smallest compression resistance; a portion of the sealing element having the greatest compression resistance being positioned in front of the portion having the smallest compression resistance in the direction of introduction of the sealing surfaces one into the other so that said projection and the sealing element provide by means of their cooperation a resistance against axial displacement of the sealing surfaces from the sealing position.