CN203175554U - Coal mine tunneling machine with safety device - Google Patents
Coal mine tunneling machine with safety device Download PDFInfo
- Publication number
- CN203175554U CN203175554U CN 201320043128 CN201320043128U CN203175554U CN 203175554 U CN203175554 U CN 203175554U CN 201320043128 CN201320043128 CN 201320043128 CN 201320043128 U CN201320043128 U CN 201320043128U CN 203175554 U CN203175554 U CN 203175554U
- Authority
- CN
- China
- Prior art keywords
- tunneling machine
- coal mine
- mine tunneling
- hydraulic cylinder
- development machine
- 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
- 230000005641 tunneling Effects 0.000 title abstract description 13
- 239000003245 coal Substances 0.000 title abstract 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract 3
- 230000008602 contraction Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320043128 CN203175554U (en) | 2013-01-25 | 2013-01-25 | Coal mine tunneling machine with safety device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320043128 CN203175554U (en) | 2013-01-25 | 2013-01-25 | Coal mine tunneling machine with safety device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203175554U true CN203175554U (en) | 2013-09-04 |
Family
ID=49072269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320043128 Expired - Fee Related CN203175554U (en) | 2013-01-25 | 2013-01-25 | Coal mine tunneling machine with safety device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203175554U (en) |
-
2013
- 2013-01-25 CN CN 201320043128 patent/CN203175554U/en not_active Expired - Fee Related
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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: DATONG WEISHI ELECTROMECHANICAL EQUIPMENT CO., LTD Free format text: FORMER OWNER: GAO YU Effective date: 20140611 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140611 Address after: 037002 village of Shanxi Province Economic Development Zone Datong Xinrong District Township River Village East Patentee after: Datang Weishi Mechanical and Electrical Equipment Co.,Ltd. Address before: 037002 village of Shanxi Province Economic Development Zone Datong Xinrong District Township River Village East Patentee before: Gao Yu |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170116 Address after: 037002 village of Shanxi Province Economic Development Zone Datong Xinrong District Township River Village East Patentee after: Datong Zhongke Weishi Mining Technology Co. Ltd. Address before: 037002 village of Shanxi Province Economic Development Zone Datong Xinrong District Township River Village East Patentee before: Datang Weishi Mechanical and Electrical Equipment Co.,Ltd. |
|
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: 20130904 Termination date: 20210125 |