| 发明名称 |
BALL VALVE |
| 摘要 |
<p>A double seal type ball valve in which, in the event internal pressure of the body cavity of the valve rises above a predetermined level, a seat retainer is operated by utilizing such pressure to bring the body cavity into communication with a fluid passage to relieve the internal pressure in the body cavity.</p> |
| 申请公布号 |
CA1261807(A) |
申请公布日期 |
1989.09.26 |
| 申请号 |
CA19850478730 |
申请日期 |
1985.04.10 |
| 申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (A.K.A. KOBE STEEL, LTD.) |
发明人 |
NAKANISHI, SADAYUKI;FUKUNAGA, AKIO |
| 分类号 |
F16K5/20;F16K5/06;F16K39/06;(IPC1-7):F16K5/20 |
主分类号 |
F16K5/20 |
| 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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