CN204040896U - 一种钻机恒负载控制装置 - Google Patents
一种钻机恒负载控制装置 Download PDFInfo
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- CN204040896U CN204040896U CN201420408218.6U CN201420408218U CN204040896U CN 204040896 U CN204040896 U CN 204040896U CN 201420408218 U CN201420408218 U CN 201420408218U CN 204040896 U CN204040896 U CN 204040896U
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- pressure
- oil cylinder
- control device
- electric proportional
- pressure sensor
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Application Number | Priority Date | Filing Date | Title |
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CN201420408218.6U CN204040896U (zh) | 2014-07-23 | 2014-07-23 | 一种钻机恒负载控制装置 |
Applications Claiming Priority (1)
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CN201420408218.6U CN204040896U (zh) | 2014-07-23 | 2014-07-23 | 一种钻机恒负载控制装置 |
Publications (1)
Publication Number | Publication Date |
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CN204040896U true CN204040896U (zh) | 2014-12-24 |
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CN201420408218.6U Expired - Fee Related CN204040896U (zh) | 2014-07-23 | 2014-07-23 | 一种钻机恒负载控制装置 |
Country Status (1)
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CN (1) | CN204040896U (zh) |
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2014
- 2014-07-23 CN CN201420408218.6U patent/CN204040896U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 065000 Langfang golden city of Hebei province Guangyang District Road No. 77 Co-patentee after: Langfang Juli Exploration Technology Co.,Ltd. Patentee after: INSTITUTE OF EXPLORATION TECHNIQUE, CHINESE ACADEMY OF GEOLOGICAL SCIENCES Address before: 065000 Langfang golden city of Hebei province Guangyang District Road No. 77 Co-patentee before: JULI GEO-ENGINEERING TECHNICAL DEVELOPMENT COMPANY (LANGFANG) Patentee before: INSTITUTE OF EXPLORATION TECHNIQUE, CHINESE ACADEMY OF GEOLOGICAL SCIENCES |
|
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: 20141224 Termination date: 20210723 |