发明名称 |
METHOD OF MANUFACTURING A BUTTERFLY VALVE |
摘要 |
<p>METHOD OF MANUFACTURING A BUTTERFLY VALVE The method of manufacturing a butterfly valve from plate steel which comprises flame cutting the outer configuration of the valve body and flame cutting a circular disc from the center of the body resulting in a water opening through the body and utilizing the disc as the closure member. The valve is constructed in such a manner that no castings or welding is required.</p> |
申请公布号 |
CA1060188(A) |
申请公布日期 |
1979.08.14 |
申请号 |
CA19770269658 |
申请日期 |
1977.01.13 |
申请人 |
ALLIS-CHALMERS CORPORATION |
发明人 |
GOLDMAN, HOLLIDAY L. |
分类号 |
B23P15/00;(IPC1-7):23P15/00 |
主分类号 |
B23P15/00 |
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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