发明名称 |
Monitor for double safety valves |
摘要 |
A safety monitor for a dual valve of the type that provides a malfunction signal when one of the valve members of the dual valve is not in its intended position. The monitor comprises a simple pressure sensing device that senses the pressure downstream of the inlet valve element of each of the valve members for sensing when a pressure exists downstream of the valve element.
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申请公布号 |
US4542767(A) |
申请公布日期 |
1985.09.24 |
申请号 |
US19830482135 |
申请日期 |
1983.04.05 |
申请人 |
ROSS OPERATING VALVE COMPANY |
发明人 |
THORNTON, DOUGLAS M.;MATHIS, LOGAN H. |
分类号 |
F16K37/00;B30B15/14;B30B15/28;F15B20/00;(IPC1-7):F15B13/08 |
主分类号 |
F16K37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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