发明名称 Pump having double reverse seal to eliminate leaking and binding
摘要 A seal assembly which generally includes a first annular seal member having a bent lip portion defining a central opening, a second annular seal member having a bent lip portion defining a central opening and an annular spacer sandwiched between the first and second seal members, wherein the lip portions of the first and second seal members are bent in an inward direction toward one another.
申请公布号 US2007256556(A1) 申请公布日期 2007.11.08
申请号 US20070799978 申请日期 2007.05.03
申请人 FLUID METERING INC. 发明人 RAWLINGS DAVID
分类号 F16J15/18 主分类号 F16J15/18
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