CN202768376U - 环封式深抽减载装置 - Google Patents
环封式深抽减载装置 Download PDFInfo
- Publication number
- CN202768376U CN202768376U CN 201220451234 CN201220451234U CN202768376U CN 202768376 U CN202768376 U CN 202768376U CN 201220451234 CN201220451234 CN 201220451234 CN 201220451234 U CN201220451234 U CN 201220451234U CN 202768376 U CN202768376 U CN 202768376U
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- Prior art keywords
- pump barrel
- box cupling
- end connects
- valve cover
- cover
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- 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
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220451234 CN202768376U (zh) | 2012-09-06 | 2012-09-06 | 环封式深抽减载装置 |
Applications Claiming Priority (1)
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CN 201220451234 CN202768376U (zh) | 2012-09-06 | 2012-09-06 | 环封式深抽减载装置 |
Publications (1)
Publication Number | Publication Date |
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CN202768376U true CN202768376U (zh) | 2013-03-06 |
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CN 201220451234 Expired - Fee Related CN202768376U (zh) | 2012-09-06 | 2012-09-06 | 环封式深抽减载装置 |
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CN (1) | CN202768376U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104533765A (zh) * | 2014-11-12 | 2015-04-22 | 胜利油田高原石油装备有限责任公司 | 双固定防垢卡长柱塞防砂抽油泵 |
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2012
- 2012-09-06 CN CN 201220451234 patent/CN202768376U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104533765A (zh) * | 2014-11-12 | 2015-04-22 | 胜利油田高原石油装备有限责任公司 | 双固定防垢卡长柱塞防砂抽油泵 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: PUYANG YUANHENG LITONG PETROLEUM MACHINERY CO., LT Free format text: FORMER OWNER: WANG YIMING Effective date: 20140422 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140422 Address after: 457000 Dongpu industrial agglomeration area, Henan, Puyang Patentee after: PUYANG YUANHENG LITONG PETROLEUM MACHINERY CO., LTD. Address before: 457000 North Road, Sinopec East Road, Henan, Puyang Patentee before: Wang Yiming |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20190906 |
|
CF01 | Termination of patent right due to non-payment of annual fee |