Pipe connecting piece and pipe connection obtained by means thereof

Claim 1

A pipe connection adapted to surround the spaced adjacent ends of two cylindrical pipes, said pipe connection being a thinwalled corrugated sleeve having a central inwardly directed wave valley of smaller diameter than said pipes extending into the space between said adjacent pipe ends, said corrugated sleeve having at its opposite ends inwardly directed wave valleys substantially engaging the respective pipes, and having intermediate portions between said central and end wave valleys which are of larger diameter than said pipes providing a substantial clearance space into which the pipe ends can be laterally displaced by pivoting about the points where said inwardly directed end wave valleys substantially engage said pipes, each intermediate portion having three transverse crests extending outwardly from a conical surface, the generatrix of which extends between the transverse crest adjacent said central wave valley and the point at which the inwardly directed end wave valley substantially engages said pipe, the outer of said transverse crests receiving a sealing ring which is maintained therein by means of a thin-walled plastic ring cooperating clampingly with the bottom of said end wave valley, said sealing ring having a lip extending beneath the bottom of a wave valley, said wave valleys and said crests extending circumferentially around said sleeve and said conical surface extending radially outwardly from said crests receiving said sealing ring.