CN202039790U - Alloy spray-welding spiral centering device - Google Patents
Alloy spray-welding spiral centering device Download PDFInfo
- Publication number
- CN202039790U CN202039790U CN2011200661171U CN201120066117U CN202039790U CN 202039790 U CN202039790 U CN 202039790U CN 2011200661171 U CN2011200661171 U CN 2011200661171U CN 201120066117 U CN201120066117 U CN 201120066117U CN 202039790 U CN202039790 U CN 202039790U
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- Prior art keywords
- spiral
- alloy
- well
- centralizer
- welding
- 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.)
- Expired - Lifetime
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Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011200661171U CN202039790U (en) | 2011-03-15 | 2011-03-15 | Alloy spray-welding spiral centering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011200661171U CN202039790U (en) | 2011-03-15 | 2011-03-15 | Alloy spray-welding spiral centering device |
Publications (1)
Publication Number | Publication Date |
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CN202039790U true CN202039790U (en) | 2011-11-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011200661171U Expired - Lifetime CN202039790U (en) | 2011-03-15 | 2011-03-15 | Alloy spray-welding spiral centering device |
Country Status (1)
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CN (1) | CN202039790U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105041235A (en) * | 2015-09-07 | 2015-11-11 | 山西风雷钻具有限公司 | Transmission shaft shell used for screw drill |
CN109098672A (en) * | 2018-09-30 | 2018-12-28 | 大庆丹枫石油技术开发有限公司 | A kind of oil pumping rod centering device of heat resistant and wear resistant damage |
-
2011
- 2011-03-15 CN CN2011200661171U patent/CN202039790U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105041235A (en) * | 2015-09-07 | 2015-11-11 | 山西风雷钻具有限公司 | Transmission shaft shell used for screw drill |
CN109098672A (en) * | 2018-09-30 | 2018-12-28 | 大庆丹枫石油技术开发有限公司 | A kind of oil pumping rod centering device of heat resistant and wear resistant damage |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KARAMAY HONGDU LLC Assignor: Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd, Contract record no.: 2012650000024 Denomination of utility model: Alloy spray-welding spiral centering device Granted publication date: 20111116 License type: Exclusive License Record date: 20120913 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: KARAMAY HONGDU LLC Assignor: Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd, Contract record no.: 2012650000024 Date of cancellation: 20151110 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
CX01 | Expiry of patent term |