CN201212380Y - 防蜡助抽增效器 - Google Patents
防蜡助抽增效器 Download PDFInfo
- Publication number
- CN201212380Y CN201212380Y CNU200820024883XU CN200820024883U CN201212380Y CN 201212380 Y CN201212380 Y CN 201212380Y CN U200820024883X U CNU200820024883X U CN U200820024883XU CN 200820024883 U CN200820024883 U CN 200820024883U CN 201212380 Y CN201212380 Y CN 201212380Y
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- CN
- China
- Prior art keywords
- connecting rod
- snap ring
- wax control
- pumping
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200820024883XU CN201212380Y (zh) | 2008-07-02 | 2008-07-02 | 防蜡助抽增效器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200820024883XU CN201212380Y (zh) | 2008-07-02 | 2008-07-02 | 防蜡助抽增效器 |
Publications (1)
Publication Number | Publication Date |
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CN201212380Y true CN201212380Y (zh) | 2009-03-25 |
Family
ID=40496549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU200820024883XU Expired - Fee Related CN201212380Y (zh) | 2008-07-02 | 2008-07-02 | 防蜡助抽增效器 |
Country Status (1)
Country | Link |
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CN (1) | CN201212380Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105422428A (zh) * | 2015-11-17 | 2016-03-23 | 中国石油天然气股份有限公司 | 一种管式旋流抽油泵 |
-
2008
- 2008-07-02 CN CNU200820024883XU patent/CN201212380Y/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105422428A (zh) * | 2015-11-17 | 2016-03-23 | 中国石油天然气股份有限公司 | 一种管式旋流抽油泵 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Wu Jilin Inventor after: Tao Tao Inventor after: Qiu Jianbin Inventor after: Zhou Guangsheng Inventor after: Liang Shi Ju Inventor after: Cui Yongjun Inventor after: Feng Hu Inventor after: Li Xinjiang Inventor after: Han Dong Inventor after: Du Fengbo Inventor after: Wang Chunmei Inventor after: Jiang Jianqiang Inventor before: Wu Jilin Inventor before: Liang Shi Ju Inventor before: Cui Yongjun Inventor before: Feng Hu Inventor before: Li Xinjiang Inventor before: Han Dong Inventor before: Du Fengbo Inventor before: Wang Chunmei; |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU JILIN; LIANG SHIJU; CUI YONGJUN; FENG HU; LI XINJIANG; HAN DONG; DU FENGBO; WANG CHUNMEI TO: WU JILIN; LIANG SHIJU; CUI YONGJUN; FENG HU; LI XINJIANG; HAN DONG; DU FENGBO; WANG CHUNMEI; JIANG JIANQIANG; LAN TAO; QIU JIANBIN; ZHOU GUANGSHENG |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20120702 |