초록 ▼

The invention provides a method of applying a resin impregnated lining sleeve to a length of passageway surface wherein the sleeve first of all has a carrier tube everted into the sleeve from one end and out of the other end, the carrier tube is re-inverted to draw the sleeve into the carrier tube a

The invention provides a method of applying a resin impregnated lining sleeve to a length of passageway surface wherein the sleeve first of all has a carrier tube everted into the sleeve from one end and out of the other end, the carrier tube is re-inverted to draw the sleeve into the carrier tube and then the assembly of carrier tube and sleeve is positioned in relation to the passageway length to be lined and the carrier tube re-everted to position the sleeve on the surface in the required position. The resin is subsequently cured and the carrier tube removed leaving a hard tubular lining shell on the passageway surface.

대표청구항 ▼

A method of lining a pipeline or passageway with a tubular sleeve comprising a flexible resin absorbent material, said method comprising the steps of: (ia) impregnating the tubular sleeve with a curable synthetic resin; (ib) everting a flexible carrier tube into one end of the resin-impregnated slee

A method of lining a pipeline or passageway with a tubular sleeve comprising a flexible resin absorbent material, said method comprising the steps of: (ia) impregnating the tubular sleeve with a curable synthetic resin; (ib) everting a flexible carrier tube into one end of the resin-impregnated sleeve, along the inside of the sleeve and out of the other end of the sleeve; (ic) inverting the carrier tube in the opposite direction to pull one end of the sleeve into the inside of the carrier tube so that at least a substantial portion of the sleeve is drawn into the inside of the carrier tube; (id) positioning one end of the assembly or carrier tube and resin-impregnated sleeve in operative position in relation to a passageway to be lined; (ie) everting the carrier tube by fluid pressure into the passageway so that the impregnated sleeve is also everted into the passageway and lies on the passageway surface between the carrier tube and the said passageway surface; and (if) causing or allowing the resin to cure while it is so held to the passageway surface.