发明名称 |
METHOD AND APPARATUS FOR INJECTING PACKING INTO STUFFING BOXES FOR RECIPROCATING RODS |
摘要 |
A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing b ox has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the openi ng or adjusting the volume of the chamber.
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申请公布号 |
CA2424164(A1) |
申请公布日期 |
2003.10.02 |
申请号 |
CA20032424164 |
申请日期 |
2003.04.01 |
申请人 |
HARBISON-FISCHER, INC. |
发明人 |
RIMMER, IAN DOUGLAS |
分类号 |
E21B33/02;F16J15/56;(IPC1-7):F16J15/56 |
主分类号 |
E21B33/02 |
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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