CN2479179Y - Multi-functional power head - Google Patents
Multi-functional power head Download PDFInfo
- Publication number
- CN2479179Y CN2479179Y CN 01218442 CN01218442U CN2479179Y CN 2479179 Y CN2479179 Y CN 2479179Y CN 01218442 CN01218442 CN 01218442 CN 01218442 U CN01218442 U CN 01218442U CN 2479179 Y CN2479179 Y CN 2479179Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- end socket
- drilling
- center tube
- motor head
- 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01218442 CN2479179Y (en) | 2001-03-30 | 2001-03-30 | Multi-functional power head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01218442 CN2479179Y (en) | 2001-03-30 | 2001-03-30 | Multi-functional power head |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2479179Y true CN2479179Y (en) | 2002-02-27 |
Family
ID=33636475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 01218442 Expired - Fee Related CN2479179Y (en) | 2001-03-30 | 2001-03-30 | Multi-functional power head |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2479179Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101892805A (en) * | 2010-07-15 | 2010-11-24 | 中煤矿山建设集团有限责任公司 | Seal structure for upward return mud in power head of shaft boring machine |
CN102606085A (en) * | 2012-04-18 | 2012-07-25 | 武汉武船机电设备有限责任公司 | Axial locking device for drilling rod |
CN104074459A (en) * | 2014-04-30 | 2014-10-01 | 徐州徐工基础工程机械有限公司 | Power head gain type mud invasion prevention structure |
-
2001
- 2001-03-30 CN CN 01218442 patent/CN2479179Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101892805A (en) * | 2010-07-15 | 2010-11-24 | 中煤矿山建设集团有限责任公司 | Seal structure for upward return mud in power head of shaft boring machine |
CN101892805B (en) * | 2010-07-15 | 2013-07-10 | 中煤矿山建设集团有限责任公司 | Seal structure for upward return mud in power head of shaft boring machine |
CN102606085A (en) * | 2012-04-18 | 2012-07-25 | 武汉武船机电设备有限责任公司 | Axial locking device for drilling rod |
CN102606085B (en) * | 2012-04-18 | 2014-08-20 | 武汉武船机电设备有限责任公司 | Axial locking device for drilling rod |
CN104074459A (en) * | 2014-04-30 | 2014-10-01 | 徐州徐工基础工程机械有限公司 | Power head gain type mud invasion prevention structure |
CN104074459B (en) * | 2014-04-30 | 2016-03-30 | 徐州徐工基础工程机械有限公司 | The anti-slurry compounding structure of a kind of unit head gain formula |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: GEOPHYSICAL PROSPECTING BUREAU, CHINA PETROLEUM GR Free format text: FORMER NAME OR ADDRESS: EQUIPMENT MANUFACTURING GENERAL FACTORY, PETROLEUM GEOPHYSICAL SURVEY BUREAU MACHINERY PLANT |
|
CP03 | Change of name, title or address |
Address after: 072751 Hebei province Zhuozhou 11 mailbox Petroleum Exploration Bureau Science and Technology Development Department Fang Xinyu Shao Yongmei Patentee after: Geophysical Exploration Bureau, China Petroleum Group Address before: 121 box 072555, Xushui County, Hebei Patentee before: Machinery Plant of Petroleum Geophysical Prospecting Bureau Appts. Mfg. General |
|
C56 | Change in the name or address of the patentee |
Owner name: CHINA PETROLEUM GROUP CO., GEOPHYSICAL EXPLORATION Free format text: FORMER NAME OR ADDRESS: GEOPHYSICAL PROSPECTING BUREAU, CHINA PETROLEUM GROUP |
|
CP03 | Change of name, title or address |
Address after: 11 contact man, Ministry of science, technology and information, box 072751, Hebei, Zhuozhou Box 11, science and technology and the Ministry of information of Hebei Province, Zhuozhou City, 072751 contacts: Xinyu Shao Yongmei, take it Patentee after: China Petroleum Group Dongfang Geophysical Exploration Bureau Co Ltd Address before: Science and technology development department, bureau of petroleum geophysical prospecting, box 11, Zhuozhou, Hebei Patentee before: Geophysical Exploration Bureau, China Petroleum Group |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020227 Termination date: 20100330 |