发明名称 |
Roller guide for oil-well pump |
摘要 |
A guide for guiding a pump-rod in a well-head consisting of a housing capable of being held between a well-head tee and a stuffing box comprising an enclosure having two pairs of transversely rotatable rollers positioned substantially at right angles to each other, each roller of each pair being offset from the center line of the pump-rod such that the pump-rod will pass between both sets of rollers so that it will be guided during operation in a reciprocating path.
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申请公布号 |
US4415026(A) |
申请公布日期 |
1983.11.15 |
申请号 |
US19810227316 |
申请日期 |
1981.01.22 |
申请人 |
REZEWSKI, JOE;BERNES, WAYNE |
发明人 |
REZEWSKI, JOE;BERNES, WAYNE |
分类号 |
E21B33/068;E21B34/02;F04B53/14;F04B53/16;(IPC1-7):E21B33/03 |
主分类号 |
E21B33/068 |
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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