发明名称 Removable sanitary sewer friction-fit plug for unwanted fluid exclusion
摘要 This device will prevent intrusion of rainwater, groundwater and other unwanted fluids into a sanitary sewer system thereby alleviating the load on the sanitary sewer, collection, transmission and waste water treatment facilities thereby reducing costs.
申请公布号 US7334608(B1) 申请公布日期 2008.02.26
申请号 US20040025202 申请日期 2004.12.29
申请人 MCCARTNEY JOSCK ALSTON;MCCARTNEY STAFFORD ALSTON 发明人 MCCARTNEY JOSCK ALSTON;MCCARTNEY STAFFORD ALSTON
分类号 F16L55/10 主分类号 F16L55/10
代理机构 代理人
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