发明名称 |
Method of manufacturing a valve assembly |
摘要 |
A disc-type valve assembly and method of making same. The assembly includes a valve body having a flowway with a disc-like valve element therein. A shaft has an inner portion directly rigidly connected to the valve element by a pre-stressed self-connection and an outer portion rotatably mounted in the valve body. A handle is directly rigidly connected to the outer portion of the shaft by a pre-stressed self-connection whereby the handle and shaft form a rotating body. A positioning sleeve is interposed in tight pre-stressed relation between the valve body and the rotating body for preventing relative rotation between the bodies under torque loads below a pre-determined magnitude, the positioning sleeve being yieldable under torque loads greater than or equal to that magnitude to permit such rotation.
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申请公布号 |
US4413393(A) |
申请公布日期 |
1983.11.08 |
申请号 |
US19810227428 |
申请日期 |
1981.01.22 |
申请人 |
KEYSTONE INTERNATIONAL, INC. |
发明人 |
SCHILS, PETRUS J. R. |
分类号 |
F16K1/22;F16K1/226;F16K35/04;(IPC1-7):B23P15/00;F16K31/00 |
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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