发明名称 PLUG VALVE INDICATOR
摘要 <p>A valve has a body having a rotatable valve element. A drive mechanism has a drive input member and a drive output member that are coupled to the valve element for rotating the valve element. A shear member is operatively located within the drive mechanism between the drive input member and the drive output member for shearing in the event the force to rotate the valve element is excessive. The valve has indicia indicating open and closed positions for the valve element. An indicator is mounted to output drive member to properly align with the indicia regardless whether the shear member has sheared or not.</p>
申请公布号 EP2438338(A2) 申请公布日期 2012.04.11
申请号 EP20100784052 申请日期 2010.06.03
申请人 S.P.M. FLOW CONTROL, INC. 发明人 WITKOWSKI, BRIAN, C.;KOTAPISH, EDWARD, C.
分类号 F16K37/00;F16K5/04 主分类号 F16K37/00
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