| 摘要 |
<p>An inflatable bladder (10) for use in repairing a failure in a pipe. The inflatable bladder has an elongated, tubular body portion (12) defining a hollow interior with open ends and first and second end portions (14, 16). Each of the end portions closes one of the tubular body open ends. The bladder is made from a laminate of an inner (30) and outer (32) air-impermeable material with an electrically conductive intermediate layer (34) positioned therebetween. A vent (50) extends from the intermediate layer through one of the inner and outer layers to vent air from the intermediate layer.</p> |
