Patent ID: 6709022
Filing Date: 2004-03-23
Classification: F16L,Y10T

Abstract:
A device (B) for connecting a branch pipe (54) on a fluid transporting system (C), said device comprising:a support portion (12) on a wall (10) of the fluid transporting-system (C); a connection piece (28) for the branch pipe (54); a perforating member (20) having a smooth external face(6) and fitted with a cutter (70) for perforating the wall (10), the perforating member (20) having a cylindrical portion (71 ) surmounting the cutter; a cylindrical shaft (16) along an axis (51) dimensioned for receiving the perforating member (20) and in which the perforating member is able to move from a perforation position from the wall (10) to a retracted position in the shaft (16); sealing means (E, 30) between the shaft (16) and the perforating member (20), the support portion (12), the connection piece (28), the shaft (16) and the sealing means (E) being rendered integral by one of moulding and cast-moulding, the sealing means resting and enclosing said external smooth face of the perforating member (20), and the support portion (12), the connection piece (28), the shaft (16) and the sealing means (E) forming a single moulded part; wherein the shaft (16) comprises an internal threaded portion (61) for screwing the perforator, the shaft thus being without any threaded tubular insert.