Patents by Inventor Maoping ZHAO

Maoping ZHAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Skip-mining type wangeviry stope branch roadway filling and coal mining method
    Patent number: 10012080
    Abstract: A transportation main roadway and stope branch roadways are arranged by adopting a wangeviry coal mining method. A plurality of stope branch roadways are divided into multiple mining stages, based on which the stope branch roadways are skip-mined; and coal pillars are not reserved among the stope branch roadways. The transportation main roadway is a main transportation channel, and the stope branch roadways are coal mining roadways. All the stope branch roadways are sequentially stoped in a skip-mining manner according to the designed mining sequence and are sequentially and timely filled. The coal never stoped or the filled stope branch roadways is/are used as supports for controlling roofs at the two sides of the stope branch roadways, and the stope branch roadways are sequentially stoped according to a plurality of mining stages, and finally the coal pillar-free mining is realized.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 3, 2018
    Assignee: China University of Mining and Technology
    Inventors: Liqiang Ma, Xiaomin Yu, Yinzhong Zhang, Jiaxue Wang, Junjie Wang, Maoping Zhao, Jianbo Cao, Peng Dl, Zhiyuan Jin, Fei Wang
  • SKIP-MINING TYPE WANGEVIRY STOPE BRANCH ROADWAY FILLING AND COAL MINING METHOD
    Publication number: 20160305245
    Abstract: A transportation main roadway and stope branch roadways are arranged by adopting a wangeviry coal mining method. A plurality of stope branch roadways are divided into multiple mining stages, based on which the stope branch roadways are skip-mined; and coal pillars are not reserved among the stope branch roadways. The transportation main roadway is a main transportation channel, and the stope branch roadways are coal mining roadways. All the stope branch roadways are sequentially stoped in a skip-mining manner according to the designed mining sequence and are sequentially and timely filled. The coal never stoped or the filled stope branch roadways is/are used as supports for controlling roofs at the two sides of the stope branch roadways, and the stope branch roadways are sequentially stoped according to a plurality of mining stages, and finally the coal pillar-free mining is realized.
    Type: Application
    Filed: November 19, 2014
    Publication date: October 20, 2016
    Inventors: Liqiang MA, Xiaomin YU, Yinzhong ZHANG, Jiaxue WANG, Junjie WANG, Maoping ZHAO, Jianbo CAO, Peng DI, Zhiyuan JIN, Fei WANG