F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/12, 166/41
F16L 55/18 (2006.01) E03F 3/06 (2006.01) E21B 47/09 (2006.01) F16L 55/26 (2006.01)
Patent
CA 1301084
Abstract The invention relates to a method of drilling apertures for branch lines blocked by renovation lining of a main pipeline which comprises setting a water plug in the opening of each branch line prior to lining, said water plug carrying a position marker comprising an antenna coil and a resonator adapted to be excited by a driving signal and, after stoppage of the driving signal, release a resonance signal remaining in the resonator from the antenna coil and said position marker being situated in a position which, upon setting of the water plug in position, is substantially concentric with the axis of the branch line, causing an antenna assembly for detecting the resonance signal to travel within the main pipeline to detect the position of the marker and driving a drilling means using the thus-detected marker position as a target from within the main pipeline.
589190
Hirayama Hirozo
Kitahashi Naoki
Miyazaki Harutoshi
Oi Hisaichi
Sonku Masahisa
Sekisui Kagaku Kogyo Kabushiki Kaisha
Smart & Biggar
LandOfFree
Method of drilling a branch line aperture after internal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of drilling a branch line aperture after internal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of drilling a branch line aperture after internal... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1193606