CN209780788U - 一种自限位式刚性扶正器 - Google Patents
一种自限位式刚性扶正器 Download PDFInfo
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- CN209780788U CN209780788U CN201920492216.2U CN201920492216U CN209780788U CN 209780788 U CN209780788 U CN 209780788U CN 201920492216 U CN201920492216 U CN 201920492216U CN 209780788 U CN209780788 U CN 209780788U
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- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920492216.2U CN209780788U (zh) | 2019-04-12 | 2019-04-12 | 一种自限位式刚性扶正器 |
Applications Claiming Priority (1)
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CN201920492216.2U CN209780788U (zh) | 2019-04-12 | 2019-04-12 | 一种自限位式刚性扶正器 |
Publications (1)
Publication Number | Publication Date |
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CN209780788U true CN209780788U (zh) | 2019-12-13 |
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CN201920492216.2U Expired - Fee Related CN209780788U (zh) | 2019-04-12 | 2019-04-12 | 一种自限位式刚性扶正器 |
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CN (1) | CN209780788U (zh) |
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2019
- 2019-04-12 CN CN201920492216.2U patent/CN209780788U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201127 Address after: 300457 Tianjin Binhai New Area Development Zone No. second, No. 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Binhai New Area Development Zone No. second, No. 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |