B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
254/115
B23P 17/02 (2006.01) E21B 7/30 (2006.01) F16L 55/165 (2006.01)
Patent
CA 1237118
ABSTRACT MAIN BURSTING TOOL The tool has a hollow elongated body 10 made up of a leading section 12 attachable to a tow-cable by 8 clevis 28, an intermediate section 14 and a trailing section 16 housing a hydraulic cylinder 24 and attachable to a main liner 30. The intermediate section includes a frusto-conical wall in two parts 16 and 18, each of 180° angular extent. The ram 24 operates a wedge 22 longitudinally to move the first part 16 outwardly or inwardly transversely of the body. The parts 16, 18 are slidably trapped to the wedge by slide components projecting into grooves. The tool is pulled by the tow cable into the main with the part 16 retracted. Then the part 16 is moved outwardly to burst and enlarge the main, allowing the tool to advance further after retraction of the part 16. The parts 16, 18 each have an external longitudinal rib 68, 70. The part 16 has longitudinal marginal extensions overlapping the longitudinal margins of the part 18.
498146
Mood Geoffrey I.
Wayman Malcolm
British Gas Corporation
Gowling Lafleur Henderson Llp
LandOfFree
Mains bursting tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mains bursting tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mains bursting tool will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1291982