QINGYONG DU

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JIANGSU, CN

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Patents Grantslast 30 patents

Information Patent Grant
Large-tonnage coal dropping buffer skip for mine
- Patent number 10,988,347
- Issue date Apr 27, 2021
- China University of Mining and Technology
- Yuxing Peng
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and device for monitoring tension equalization and displacem...
- Patent number 9,914,618
- Issue date Mar 13, 2018
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Zhencai Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Large-tonnage slender externally powered curve rail-mounted unloadi...
- Patent number 9,878,882
- Issue date Jan 30, 2018
- Xuzhou Coal Mine Safety Equipment Manufacture Co., Ltd.
- Zhencai Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Adjustable intermediate disk body of large double-layer cage and ad...
- Patent number 9,695,017
- Issue date Jul 4, 2017
- China University of Mining and Technology
- Zhencai Zhu
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
LARGE-TONNAGE COAL DROPPING BUFFER SKIP FOR MINE
- Publication number 20200339388
- Publication date Oct 29, 2020
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Yuxing PENG
- B66 - HOISTING LIFTING HAULING
Information Patent Application
CAGEWAY CONNECTING DEVICE AND CONNECTING METHOD THEREOF
- Publication number 20200232321
- Publication date Jul 23, 2020
- HEFEI DESIGH AND RESEARCH INSTITUTE OF COAL INDUSTRY CO., LTD.
- Qiang Qin
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND DEVICE FOR MONITORING TENSION EQUALIZATION AND DISPLACEM...
- Publication number 20160207736
- Publication date Jul 21, 2016
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Zhencai Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Application
ADJUSTABLE INTERMEDIATE DISK BODY OF LARGE DOUBLE-LAYER CAGE AND AD...
- Publication number 20160207740
- Publication date Jul 21, 2016
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Zhencai Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Application
LARGE-TONNAGE SLENDER EXTERNALLY POWERED CURVE RAIL-MOUNTED UNLOADI...
- Publication number 20150368072
- Publication date Dec 24, 2015
- XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
- ZHENCAI ZHU
- B66 - HOISTING LIFTING HAULING