发明名称 |
High pressure mechanical plug device |
摘要 |
A high pressure mechanical plug device for sealing and locking into a high interior pressure pipeline. The mechanical plug device has a hollow cylindrical body structure with an end wall and a side wall structure having a plurality of apertures. A piston structure having an end wall and a frustoconical ram of a predetermined slope is provided for movement in the cylindrical body structure. An elastomeric sealing member is in communication with the end wall of the piston structure. A plurality of rigid securement members are provided for extension through the apertures of the cylindrical body structure and for slidingly engaging the frustoconical ram. A draw bolt extending axially from the frustoconical ram through the end wall of the cylindrical body is provided with a nut to move the piston structure into the cylindrical body to seal and lock the plug device in the pipeline.
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申请公布号 |
US4817671(A) |
申请公布日期 |
1989.04.04 |
申请号 |
US19880146342 |
申请日期 |
1988.01.21 |
申请人 |
CHERNE INDUSTRIES, INC. |
发明人 |
MATHISON, ALLEN D.;NELSON, DALE K. |
分类号 |
F16L55/132;(IPC1-7):F16L55/10 |
主分类号 |
F16L55/132 |
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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