发明名称 Flood protection sewer backflow control valve and adapter assembly
摘要 The present invention relates to a basement sewer backflow control valve with adapter. A valve such as a ball valve is positioned a sewer line under the floor of a basement with an adapter extending vertically through the basement floor providing a means for opening and closing the valve as needed to ensure flood waters do not backflow into the basement during flooding. The valve and adapter may also be utilized in combination with an in-line check valve. The adapter provides a flush surface with the basement floor.
申请公布号 US5775365(A) 申请公布日期 1998.07.07
申请号 US19960756057 申请日期 1996.11.26
申请人 NIBCO, INC. 发明人 HAYDEN, STUART E.;KIEPER, DOUGLAS A.;HUNT, GEORGE H.
分类号 E03F7/04;F16K27/06;(IPC1-7):F16L5/00 主分类号 E03F7/04
代理机构 代理人
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