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 box 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 opening or adjusting the volume of the chamber.
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申请公布号 |
US8403331(B2) |
申请公布日期 |
2013.03.26 |
申请号 |
US20050137285 |
申请日期 |
2005.05.25 |
申请人 |
MAHONEY MARK WILLIAM;RIMMER IAN DOUGLAS;WILLIAMS BENNY J.;HARBISON-FISCHER, INC. |
发明人 |
MAHONEY MARK WILLIAM;RIMMER IAN DOUGLAS;WILLIAMS BENNY J. |
分类号 |
F16J15/16;E21B33/02;F16J15/56 |
主分类号 |
F16J15/16 |
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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