CN201756945U - 球式扩张密封油管桥塞 - Google Patents
球式扩张密封油管桥塞 Download PDFInfo
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- CN201756945U CN201756945U CN2010202810778U CN201020281077U CN201756945U CN 201756945 U CN201756945 U CN 201756945U CN 2010202810778 U CN2010202810778 U CN 2010202810778U CN 201020281077 U CN201020281077 U CN 201020281077U CN 201756945 U CN201756945 U CN 201756945U
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010202810778U CN201756945U (zh) | 2010-08-03 | 2010-08-03 | 球式扩张密封油管桥塞 |
Applications Claiming Priority (1)
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CN2010202810778U CN201756945U (zh) | 2010-08-03 | 2010-08-03 | 球式扩张密封油管桥塞 |
Publications (1)
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CN201756945U true CN201756945U (zh) | 2011-03-09 |
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CN2010202810778U Expired - Lifetime CN201756945U (zh) | 2010-08-03 | 2010-08-03 | 球式扩张密封油管桥塞 |
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CN (1) | CN201756945U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107288552A (zh) * | 2017-08-10 | 2017-10-24 | 西安石油大学 | 双向限位膨胀锁紧式连续油管组合接头 |
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2010
- 2010-08-03 CN CN2010202810778U patent/CN201756945U/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107288552A (zh) * | 2017-08-10 | 2017-10-24 | 西安石油大学 | 双向限位膨胀锁紧式连续油管组合接头 |
CN107288552B (zh) * | 2017-08-10 | 2024-03-12 | 西安石油大学 | 双向限位膨胀锁紧式连续油管组合接头 |
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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: TOP-WELL PETROLEUM TECHNOLOGIES COMPANY LTD. Free format text: FORMER OWNER: BEIJING TOP-WELL PETROLEUM TECHNOLOGIES SERVICE COMPANY LTD. Effective date: 20121114 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121114 Address after: 100012, room 32, security building, 2101 Beiyuan Road, Beijing, Chaoyang District Patentee after: Top-Well Petroleum Technologies Company Ltd. Address before: 100012, room 32, security building, 2101 Beiyuan Road, Beijing, Chaoyang District Patentee before: Top Well Services Inc. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20110309 |