发明名称 Water control valve device having check valve
摘要 A water control valve device includes a housing having one or more inlet orifices and greater openings for receiving water, and one or more check valves each having an inner casing engaged into the inlet orifice of the housing and an outer peripheral flange engaged in the opening of the housing, and each having a port for receiving water. The check valve includes one or more inclined surfaces for forming a closable and openable mouth which is openable when water flows into the casing and which may be closed for preventing the water from flowing out of the housing.
申请公布号 US2003183285(A1) 申请公布日期 2003.10.02
申请号 US20020106448 申请日期 2002.03.27
申请人 YANG TSAI CHEN 发明人 YANG TSAI CHEN
分类号 F16K15/14;F16K27/04;(IPC1-7):F16K11/074 主分类号 F16K15/14
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