Metal fusion bonding – Process – Repairing – restoring – or renewing product for reuse
Patent
1987-12-04
1989-03-28
Silverberg, Fred A.
Metal fusion bonding
Process
Repairing, restoring, or renewing product for reuse
228182, 228186, 285 31, 285 93, 285 96, 285101, 285286, F16L 1302
Patent
active
048156507
ABSTRACT:
An apparatus for welding a section of pipeline onto an existing pipeline, the process including the steps of cutting away the section of damaged pipeline; providing a apparatus insertable within each end of the existing line for venting off gas within the line to create a gas free safety zone around the cut ends of the line; providing a flange for welding onto the ends of the line, the flange including a ring for sealingly engaging the face of a mating flange to effect an initial seal between the flanges while a weld bead is welded in place between the mating flanges. Following the welding, there is provided a test port in the wall of the flange for allowing air or fluid to be injected into the annular space between the metal sealed ring and the weld so as to test for any leak in the weld in place. Further, the sealing ring and test ports are in a position so that the exterior weld between the flanges may be X-rayed for any flaws within the weld.
REFERENCES:
patent: 2831708 (1958-04-01), Kircher
patent: 2877628 (1959-03-01), Maunsell
patent: 3097866 (1963-07-01), Iversen
patent: 4065846 (1978-01-01), Leonard, Jr.
patent: 4508129 (1985-04-01), Brown
patent: 4577488 (1986-03-01), Broadus et al.
patent: 4605156 (1986-08-01), Stenger et al.
patent: 4693499 (1987-09-01), Serve
Heinrich Samuel M.
Silverberg Fred A.
LandOfFree
Hydraulically activated welding flange does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulically activated welding flange, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically activated welding flange will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1653454