CN201062525Y - 四柱支撑掩护式低位放顶煤支架 - Google Patents
四柱支撑掩护式低位放顶煤支架 Download PDFInfo
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- CN201062525Y CN201062525Y CNU2007200914179U CN200720091417U CN201062525Y CN 201062525 Y CN201062525 Y CN 201062525Y CN U2007200914179 U CNU2007200914179 U CN U2007200914179U CN 200720091417 U CN200720091417 U CN 200720091417U CN 201062525 Y CN201062525 Y CN 201062525Y
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- hinged
- jack
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- support
- caving
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Application Number | Priority Date | Filing Date | Title |
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CNU2007200914179U CN201062525Y (zh) | 2007-08-10 | 2007-08-10 | 四柱支撑掩护式低位放顶煤支架 |
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CNU2007200914179U CN201062525Y (zh) | 2007-08-10 | 2007-08-10 | 四柱支撑掩护式低位放顶煤支架 |
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CN201062525Y true CN201062525Y (zh) | 2008-05-21 |
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CNU2007200914179U Expired - Lifetime CN201062525Y (zh) | 2007-08-10 | 2007-08-10 | 四柱支撑掩护式低位放顶煤支架 |
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CN (1) | CN201062525Y (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103046943A (zh) * | 2013-01-28 | 2013-04-17 | 郑州四维机电设备制造有限公司 | 一种液压支架 |
CN103195459A (zh) * | 2013-04-24 | 2013-07-10 | 江苏蛟龙重工集团有限公司 | 低位放顶煤支架 |
CN103557023A (zh) * | 2013-11-15 | 2014-02-05 | 中煤北京煤矿机械有限责任公司 | 极软煤层液压支架 |
-
2007
- 2007-08-10 CN CNU2007200914179U patent/CN201062525Y/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103046943A (zh) * | 2013-01-28 | 2013-04-17 | 郑州四维机电设备制造有限公司 | 一种液压支架 |
CN103195459A (zh) * | 2013-04-24 | 2013-07-10 | 江苏蛟龙重工集团有限公司 | 低位放顶煤支架 |
CN103195459B (zh) * | 2013-04-24 | 2016-01-20 | 江苏蛟龙重工集团有限公司 | 低位放顶煤支架 |
CN103557023A (zh) * | 2013-11-15 | 2014-02-05 | 中煤北京煤矿机械有限责任公司 | 极软煤层液压支架 |
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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: Zhengzhou Coal Machinery Integrated Equipment Co., Ltd. Assignor: Zhengzhou Coal Mining Machinery Group Co., Ltd. Contract fulfillment period: 2007.8.20 to 2017.8.10 Contract record no.: 2008410000200 Denomination of utility model: Four column protected type hydraulic prop frame for low position blasting down the roof coal Granted publication date: 20080521 License type: Exclusive license Record date: 20081216 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.8.20 TO 2017.8.10; CHANGE OF CONTRACT Name of requester: ZHENG ZHOU COAL MACHINE EQUIPMENT CO., LTD. Effective date: 20081216 |
|
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee after: Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Henan, Zhengzhou Province, China: 450013 Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
|
C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU MINE MACHINE GROUP CO., LTD. Free format text: FORMER NAME: ZHENGZHOU COAL MINE MACHINERY GROUP CO., LTD. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20080521 |