초록 ▼

An apparatus and method are disclosed for repairing ruptures in underground conduits. An inflatable bladder and a flexible sleeve that is wrapped about at least a portion of the bladder are introduced into a conduit proximate a rupture therein. The bladder is inflated to urge the sleeve into engagem

An apparatus and method are disclosed for repairing ruptures in underground conduits. An inflatable bladder and a flexible sleeve that is wrapped about at least a portion of the bladder are introduced into a conduit proximate a rupture therein. The bladder is inflated to urge the sleeve into engagement with the conduit such that the sleeve covers the rupture. The sleeve includes an adhesive bonding substance that adheres the sleeve to the conduit and is hardenable to bond the sleeve to the conduit.

대표청구항 ▼

Apparatus for repairing ruptures in underground conduits comprising: an inflatable bladder that is introducible into a generally cylindrical conduit proximate a rupture therein, said bladder having a generally smooth surface in its inflated condition; a flexible annular sleeve that is wrapped about

Apparatus for repairing ruptures in underground conduits comprising: an inflatable bladder that is introducible into a generally cylindrical conduit proximate a rupture therein, said bladder having a generally smooth surface in its inflated condition; a flexible annular sleeve that is wrapped about and directly engageable by at least a portion of said bladder and is sufficient large to cover said rupture; and means for inflating said bladder to urge said sleeve into generally conforming engagement with the entire inner circumferential surface of at least a section of said conduit such that said sleeve covers said rupture, said sleeve including an adhesive bonding substance that adheres said sleeve to said conduit and is hardenable to bond said sleeve to said conduit.