CN2617912Y - Drill bits for casting, stirring and bottom expanding for bored slurry-filling piles - Google Patents
Drill bits for casting, stirring and bottom expanding for bored slurry-filling piles Download PDFInfo
- Publication number
- CN2617912Y CN2617912Y CN 03212959 CN03212959U CN2617912Y CN 2617912 Y CN2617912 Y CN 2617912Y CN 03212959 CN03212959 CN 03212959 CN 03212959 U CN03212959 U CN 03212959U CN 2617912 Y CN2617912 Y CN 2617912Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- drill
- flange
- welded
- joint
- 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
Links
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03212959 CN2617912Y (en) | 2003-05-02 | 2003-05-02 | Drill bits for casting, stirring and bottom expanding for bored slurry-filling piles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03212959 CN2617912Y (en) | 2003-05-02 | 2003-05-02 | Drill bits for casting, stirring and bottom expanding for bored slurry-filling piles |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2617912Y true CN2617912Y (en) | 2004-05-26 |
Family
ID=34242090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 03212959 Expired - Fee Related CN2617912Y (en) | 2003-05-02 | 2003-05-02 | Drill bits for casting, stirring and bottom expanding for bored slurry-filling piles |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2617912Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101932772B (en) * | 2008-01-30 | 2012-01-04 | Ext株式会社 | Extended pile with a point plate formed the critical inner-hole |
CN106285486A (en) * | 2016-10-08 | 2017-01-04 | 郑州神利达钻采设备有限公司 | A kind of multi-functional excavating bur |
-
2003
- 2003-05-02 CN CN 03212959 patent/CN2617912Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101932772B (en) * | 2008-01-30 | 2012-01-04 | Ext株式会社 | Extended pile with a point plate formed the critical inner-hole |
CN106285486A (en) * | 2016-10-08 | 2017-01-04 | 郑州神利达钻采设备有限公司 | A kind of multi-functional excavating bur |
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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: ZHAO JIANHUI Free format text: FORMER OWNER: CAO XINGMING Effective date: 20080229 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080229 Address after: Nangang District of Heilongjiang city of Harbin province Siberia Street No. 22, unit 2, room 701, zip code: 150001 Patentee after: Zhao Jianhui Address before: Heilongjiang Hua rock underground engineering Co., Ltd., No. nine Jiao Nan Road, Harbin power station, Heilongjiang 150046, China Patentee before: Cao Xingming |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040526 Termination date: 20100502 |