发明名称 Cross-over prevention valve
摘要 A valve mechanism which is resiliently biassed towards a first position but is normally retained in a second position by means of a linkage including a chemically sensitive device which is arranged to release in the presence of a contaminant.
申请公布号 US2004112428(A1) 申请公布日期 2004.06.17
申请号 US20030685303 申请日期 2003.10.14
申请人 STUART GRAHAM M. 发明人 STUART GRAHAM M.
分类号 F16K17/40;G01N33/22;(IPC1-7):F16K17/36 主分类号 F16K17/40
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