Patent ID: 8186385
Filing Date: 2012-05-29
Classification: F16L,Y10T

Abstract:
1. A packer for use in repair of conduits, comprising: (a) an elongate, collapsible, unitary and elastically inflatable, wholly flexible, hollow body having opposite first and second ends, respective first and second sealing portions adjacent said first and second ends, and a sealant placement portion located between said sealing portions; (b) each of said sealing portions of said body including a flexible fluid-tight wall that is elastically expansible radially in response to increasing internal pressure, to cause said sealing portions to engage an interior surface of a conduit sealingly when said body is inflated; (c) said sealant placement portion of said body being elastically expansible radially at a lesser rate than said sealing portions to approach said interior surface of a conduit in response to increasing internal pressure; (d) a sealant conduit being incorporated in said body proximate said first end thereof, said sealant conduit extending longitudinally along an outer side of said flexible fluid-tight wall of said first sealing portion; and (e) a sealant discharge port communicating with said sealant conduit and located adjacent said sealant placement portion of said body.