发明名称 VALVE ACTUATOR
摘要 <p>There is disclosed an actuator for a rotary valve, such as a butterfly valve which rotates a quarter of a turn between open and closed positions. The actuator includes a drive mechanism releasably attachable to the stem of the valve for rotating it in response to operation of a reversible electric motor.</p>
申请公布号 CA2180523(C) 申请公布日期 2007.07.03
申请号 CA19962180523 申请日期 1996.07.04
申请人 BRAY INTERNATIONAL, INC. 发明人 RAYMOND, FRANK JO, JR.;BERTOJA, MICHAEL JOHN;JOHNSTON, FRANCIS WILLIAM;GENT, DAVID WAYNE
分类号 F16K1/22;F16K31/04;F16K31/05 主分类号 F16K1/22
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