Patent ID: 6049962
Filing Date: 2000-04-18
Classification: F16L,Y10T

Abstract:
A method for joining a pipe (1) with a press fitting (2) that has a cylindrical section (3) and, at each end, a radially outwardly projecting annular bead (5) which has, toward the free end of the press fitting (2), a bead shoulder (8) directed radially inward and on the inside forms an annular groove (10) into which a sealing ring (11) is placed, wherein the method includes sliding the press fitting (2) and pipe (1) into one another and then pressing the annular bead (5) and the cylindrical section (3) radially inwardly and thereby plastically deforming the pipe (1) and pressing the bead shoulder (8) into the pipe (1), and thus shaping a first clamping constriction (44) and a clamping second constriction (43), said second constriction being indented into the pipe by pressing the cylindrical section (3) at a distance from the first constriction (44) such that said second constriction (43) is separated in its conformation from the first constriction (44) in a manner such that the first constriction (44) has a section (47) underlying said sealing ring which rises radially outward in the direction of the second constriction.