发明名称 |
Means to retain a valve stem |
摘要 |
A retaining device to hold a butterfly valve stem (26) in the valve body upon a shearing or breaking of the stem. The retaining device is mounted within a bore (38) in the valve body (12) beneath the stem packing and includes pins (44) extending from the stem (26) which engage in abutting relation a support ring (64) mounted in a groove (56) in the bore to restrain any outward movement of the stem.
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申请公布号 |
US4270730(A) |
申请公布日期 |
1981.06.02 |
申请号 |
US19790043554 |
申请日期 |
1979.05.29 |
申请人 |
ACF INDUSTRIES, INCORPORATED |
发明人 |
HINRICHS, JOHN M. |
分类号 |
F16K1/22;(IPC1-7):F16K1/22 |
主分类号 |
F16K1/22 |
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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