| 摘要 |
A reusable storm drainage conduit plug and elastomeric sealing band therefor for temporarily or permanently sealingly closing an exposed open end of an in-situ tubular drainage conduit. The plug is nominally sized in diameter to prevent dirt and debris from entering the conduit open end during construction and is easily removable when construction proceeds further. The plug includes a rigid disc-shaped member having an inner and an outer panel and a gripping handle on the outer panel. A unique elastomeric sealing band is elastically stretched for securement around a somewhat cylindrical sealing surface which extends generally orthogonally and preferably at a slight taper from the inner panel. The resilient band has a unique cross section which sealingly accommodates virtually all variations in the nominal conduit inside diameter while providing both full sealing engagement and gripping, biased positional retention therein.
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