Patents by Inventor Maohu Matthew Wang

Maohu Matthew Wang 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).

  • Coal caving cycle
    Patent number: 9068452
    Abstract: A coal caving system (1) including a plurality of shields (3) with canopies (6) which are selectively operated to allow coal to cave onto a rear conveyor (37). In one aspect, the invention provides a shield control method including controlling the shield (3) to automatically open a door (6) associated with a rear canopy of the shield (3) responsive to a position of a shearer of the system.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: June 30, 2015
    Assignee: Yancoal Technology Development PTY Ltd
    Inventors: Maohu Matthew Wang, Steven Chandler
  • COAL CAVING CYCLE
    Publication number: 20130187436
    Abstract: A coal caving system (1) including a plurality of shields (3) with canopies (6) which are selectively operated to allow coal to cave onto a rear conveyor (37). In one aspect, the invention provides a shield control method including controlling the shield (3) to automatically open a door (6) associated with a rear canopy of the shield (3) responsive to a position of a shearer of the system.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 25, 2013
    Inventors: Maohu Matthew Wang, Steven Chandler