CN202348211U - 一种防瓦斯喷孔成套装置 - Google Patents
一种防瓦斯喷孔成套装置 Download PDFInfo
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- CN202348211U CN202348211U CN2011205254862U CN201120525486U CN202348211U CN 202348211 U CN202348211 U CN 202348211U CN 2011205254862 U CN2011205254862 U CN 2011205254862U CN 201120525486 U CN201120525486 U CN 201120525486U CN 202348211 U CN202348211 U CN 202348211U
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CN2011205254862U CN202348211U (zh) | 2011-12-15 | 2011-12-15 | 一种防瓦斯喷孔成套装置 |
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CN2011205254862U CN202348211U (zh) | 2011-12-15 | 2011-12-15 | 一种防瓦斯喷孔成套装置 |
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CN202348211U true CN202348211U (zh) | 2012-07-25 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216201A (zh) * | 2013-05-09 | 2013-07-24 | 武汉大学 | 矿用气水渣敛集及分离装置 |
CN111364946A (zh) * | 2020-03-18 | 2020-07-03 | 河南理工大学 | 具有钻杆密封功能的翼型气水渣分离装置及其使用方法 |
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2011
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216201A (zh) * | 2013-05-09 | 2013-07-24 | 武汉大学 | 矿用气水渣敛集及分离装置 |
CN103216201B (zh) * | 2013-05-09 | 2015-12-09 | 武汉大学 | 矿用气水渣敛集及分离装置 |
CN111364946A (zh) * | 2020-03-18 | 2020-07-03 | 河南理工大学 | 具有钻杆密封功能的翼型气水渣分离装置及其使用方法 |
CN111364946B (zh) * | 2020-03-18 | 2024-01-19 | 河南理工大学 | 具有钻杆密封功能的翼型气水渣分离装置及其使用方法 |
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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: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Xinmi City, Henan Province town of Fangshan village 452394 meters in Zhengzhou City Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City, Henan Province town of Fangshan village 452394 meters in Zhengzhou City Patentee before: Zhengzhou Yuanjian Coal Mine Equipment Co., Ltd. |
|
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Xinmi City Town Village 452370 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City, Henan Province town of Fangshan village 452394 meters in Zhengzhou City Patentee before: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171215 |
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CF01 | Termination of patent right due to non-payment of annual fee |