发明名称 |
BONNET NUT WITH IMPROVED SAFETY CHARACTERISTICS |
摘要 |
<p>A valve assembly includes a bonnet that is captivated in a valve body stem mount by means of a threaded bonnet nut. A pair of opposed pry holes are formed in the bonnet at a point above the top of the fully seated bonnet nut. Loosening of the bonnet nut enables a bonnet that is stuck in the body stem mount to be pryed loose with a pry bar inserted in one or both of the pry holes and levered against the top of the bonnet nut. The bonnet holes also provide a visual indication of movement of the bonnet and whether there is pressure in the valve body.</p> |
申请公布号 |
CA2043899(C) |
申请公布日期 |
2001.08.28 |
申请号 |
CA19912043899 |
申请日期 |
1991.06.05 |
申请人 |
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发明人 |
BREMERS, ALAN DAVID;OSGOOD, MELVIN LEW |
分类号 |
F16K27/02;(IPC1-7):F16K31/126 |
主分类号 |
F16K27/02 |
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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