| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 299033000 | With mine roof-supporting means | 14 |
| 20090309409 | Full-cut heading machine - In a full-cut heading machine including a drill head ( | 12-17-2009 |
| 20100231026 | HEADING MACHINE - In a heading machine ( | 09-16-2010 |
| 20100314931 | Heading Machine Having Cutting Unit Made of Disc Tools - In a heading machine ( | 12-16-2010 |
| 20110006586 | LONGWALL MINING ROOF SUPPORTS - A longwall mining system includes at least one face end roof support having a longitudinal length, and at least one near end roof support adjacent the face end roof support. The near end roof support has a longitudinal length substantially shorter than the face end roof support longitudinal length. There is also at least one face roof support adjacent the near end roof support, and the face roof support has a longitudinal length substantially shorter than the near end roof support longitudinal length. There is also a forward conveyor extending forward to and attached to the face end roof support, the at least one near end roof support, and the at least one face roof support, and a rearward conveyor extending rearward of and attached to the face end roof support, the at least one near end roof support, and the at least one face roof support. This creates an effective cave line at an angle to the coal face, that helps reduce the goaf pressure on the face end, thereby increasing the stability of the main gate roof support. | 01-13-2011 |
| 20110221259 | Heading machine - In a heading machine ( | 09-15-2011 |
| 20120032494 | UNDERGROUND BORING MACHINE - An underground boring machine includes a vehicle frame, a boom, and a boring cutter head. The boom includes a first end coupled to the vehicle frame and a second end. The boring cutter head includes a rotary joint, a first arm, and a second arm angularly spaced apart from the first arm. The rotary joint defines an axis of rotation and supports the boring cutter head for rotation with respect to the second end of the boom. The first arm includes a first end coupled to the rotary joint, a second end, and at least one disc cutter coupled to the first arm and oriented to engage the wall. The first arm extends from the first end toward the second end in a plane that is perpendicular to the axis of rotation. The second arm includes a first end coupled to the rotary joint, a second end, and at least one disc cutter coupled to the second arm and oriented to engage the wall. The second arm extends from the first end toward the second end in a plane that is perpendicular to the axis of rotation. | 02-09-2012 |
| 20120319453 | METHOD FOR DETERMINING THE POSITION OR LOCATION OF PLANT COMPONENTS IN MINING EXTRACTING PLANTS AND EXTRACTING PLANT - A method and system for determining the position and/or location of plant components of a mining extracting plant, which includes at least one face conveyor, a shield-type support system having a plurality of shield-type support frames and an extracting machine, the position/location of at least one plant component is determined by an evaluation system including a detection unit. To determine the location/position of at least one plant component even in the case of a dynamic mineral mining process, the detection unit includes an image sensor, by way of which at least four object points, which are at a predetermined spacing to each other and are detectable within the optical wavelength range, of at least one measuring object associated with one of the plant components, are detected and the position/location of the plant component can be determined from the projection of the object points detected by the image sensor. | 12-20-2012 |
| 20130106167 | Compact Roadheader | 05-02-2013 |
| 20130193744 | APPARATUS FOR FORMING AN UNDERGROUND TUNNEL - The present disclosure provides an apparatus for forming an underground tunnel. The apparatus comprises a cutting head for removing material from a wall portion of the tunnel and thereby forming a portion of the tunnel. Further, the apparatus comprises a support structure for supporting a previously formed portion of the tunnel. The support structure is arranged to provide a supporting force against a surface of the tunnel when stationary and when being moved along the tunnel. Further, the apparatus comprises a conveyor for conveying removed material from the cutting head to a location remote from the cutting head during formation of the portion of the tunnel. | 08-01-2013 |
| 20140077580 | LONGWALL MINING ROOF SUPPORTS - A longwall mining system includes at least one face end roof support having a longitudinal length, and at least one near end roof support adjacent the face end roof support. The near end roof support has a longitudinal length substantially shorter than the face end roof support longitudinal length. There is also at least one face roof support adjacent the near end roof support, and the face roof support has a longitudinal length substantially shorter than the near end roof support longitudinal length. There is also a forward conveyor extending forward to and attached to the face end roof support, the at least one near end roof support, and the at least one face roof support, and a rearward conveyor extending rearward of and attached to the face end roof support, the at least one near end roof support, and the at least one face roof support. This creates an effective cave line at an angle to the coal face, that helps reduce the goaf pressure on the face end, thereby increasing the stability of the main gate roof support. | 03-20-2014 |
| 20140265524 | MINING METHODS AND EQUIPMENT - Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate. | 09-18-2014 |
| 20140327293 | FREE-WHEELING-RESISTANT ROLLS FOR MINING ROOF SUPPORT AND THE COMBINATION OF A MINING MACHINE AND SUCH ROLLS - A roll of grid material for mine roof support, and a mining machine in combination with such a roll, in which the roll has bands of adhering material injected or otherwise forced into the roll in spaced locations along the roll's width. The adhering material interconnects the overlapped layers within the roll and is sufficiently strong to hold the grid material in the rolled configuration for transport and storage, and yet is readily pulled apart in response to sufficient manual or mechanical pressure applied against the roll, or tension applied to the unwound portion thereof, so as to enable the grid material to be incrementally unwound and installed in the mine. The rolls can be installed using a range of mining machines without need for any specialized dispensing or other apparatus mounted on the machine and without the need for any mechanical device to control unwinding. | 11-06-2014 |
| 20150042146 | Earth Pressure Balance Shield Machine without Cutter Disk - An EPB shield machine without disc cutter, which includes a partition unit formed by a moveable partition member ( | 02-12-2015 |
| 20160194957 | Compound-Type Tunnelling Shield | 07-07-2016 |
