CN201321814Y - High-speed rock drill with long service life - Google Patents
High-speed rock drill with long service life Download PDFInfo
- Publication number
- CN201321814Y CN201321814Y CNU2008202330260U CN200820233026U CN201321814Y CN 201321814 Y CN201321814 Y CN 201321814Y CN U2008202330260 U CNU2008202330260 U CN U2008202330260U CN 200820233026 U CN200820233026 U CN 200820233026U CN 201321814 Y CN201321814 Y CN 201321814Y
- Authority
- CN
- China
- Prior art keywords
- rock drill
- cylinder body
- piston
- service life
- long service
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 17
- 238000005121 nitriding Methods 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008202330260U CN201321814Y (en) | 2008-12-29 | 2008-12-29 | High-speed rock drill with long service life |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008202330260U CN201321814Y (en) | 2008-12-29 | 2008-12-29 | High-speed rock drill with long service life |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201321814Y true CN201321814Y (en) | 2009-10-07 |
Family
ID=41159200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008202330260U Expired - Fee Related CN201321814Y (en) | 2008-12-29 | 2008-12-29 | High-speed rock drill with long service life |
Country Status (1)
Country | Link |
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CN (1) | CN201321814Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104018778A (en) * | 2014-04-30 | 2014-09-03 | 罗亮光 | Oil-mist-free energy-saving and low-consumption pusher leg drill |
-
2008
- 2008-12-29 CN CNU2008202330260U patent/CN201321814Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104018778A (en) * | 2014-04-30 | 2014-09-03 | 罗亮光 | Oil-mist-free energy-saving and low-consumption pusher leg drill |
CN104018778B (en) * | 2014-04-30 | 2016-07-06 | 罗亮光 | Without mist of oil, energy-conservation, low consumption pusher leg drill |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Weifang Sino Swiss Construction Machinery Co., Ltd. Assignor: Li Yongsheng Contract fulfillment period: 2009.8.1 to 2015.8.1 Contract record no.: 2009370000443 Denomination of utility model: High-speed rock drill with long service life Granted publication date: 20091007 License type: Exclusive license Record date: 20091015 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.1 TO 2015.8.1; CHANGE OF CONTRACT Name of requester: WEIFANG ZHONGRUI ENGINEERING MACHINERY CO., LTD. Effective date: 20091015 |
|
ASS | Succession or assignment of patent right |
Owner name: WEIFANG TIANRUI HEAVY INDUSTRY DRILLING MACHINERY Free format text: FORMER OWNER: LI YONGSHENG Effective date: 20130104 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 261000 WEIFANG, SHANDONG PROVINCE TO: 261061 WEIFANG, SHANDONG PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20130104 Address after: 261061 high tech Zone, Weifang City, Shandong Province, Qing Qing Street, No. 13159 high tech building, room 1309 Patentee after: Weifang Tianrui Heavy Industry Drillong Machinery Co., Ltd. Address before: Baotong Street Industrial Park in Shandong province 261000 dealer in Weifang city Kuiwei District Weifang Zhongrui Engineering Machinery Co. Ltd. Patentee before: Li Yongsheng |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-speed rock drill with long service life Effective date of registration: 20150104 Granted publication date: 20091007 Pledgee: Bank of Communications Ltd Weifang branch Pledgor: Weifang Tian Rui heavy rock drilling machinery Co., Ltd., Li Yongsheng Registration number: 2015990000002 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160121 Granted publication date: 20091007 Pledgee: Bank of Communications Ltd Weifang branch Pledgor: Weifang Tian Rui heavy rock drilling machinery Co., Ltd., Li Yongsheng Registration number: 2015990000002 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
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: 20091007 Termination date: 20161229 |