Inventor
DE SIVRY BRUNO
FR6 patents
Patents
6 patentsUS4443129AApr 17, 1984
Method and apparatus for tapping a submerged pipe
PETROLES CIE FRANCAISE35 citations88
US4370541AJan 25, 1983
Electron beam chamber for butt welding pipes
PETROLES CIE FRANCAISE8 citations68
US4476605AOct 16, 1984
Rotary metal brush for removing submerged anti-corrosive covering and method for using the same
PETROLES CIE FRANCAISE7 citations66
US4425059AJan 10, 1984
Process for removing a concrete covering
PETROLES CIE FRANCAISE3 citations57
US4368374AJan 11, 1983
Vacuum chamber for electron beam butt welding of pipes
PETROLES CIE FRANCAISE2 citations57
US4493966AJan 15, 1985
Internal mandrel used in an operation of butt joining two lengths of tubing by welding
PETROLES CIE FRANCAISE0 citations35