ClassID:

136234

E21D23/12 - CPC Classification

Classification description:

Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor Control, e.g. using remote control

Sub-classes:
Recent Application in this class:
#1
20230243260
2023-08-03

ROOF SUPPORT INCLUDING EXTENDABLE LINKS

#2
20220136390
2022-05-05

Method and device for monitoring operation of a mining machine unit

#3
20220120181
2022-04-21

System for navigation detection and inclination measurement of advanced hydraulic supports

#4
20210262345
2021-08-26

Interference protection device and method for hydraulic support and cutting part of shearer

#5
20200095863
2020-03-26

Roof support including extendable links

#6
20180135412
2018-05-17

Method for implementing a centralized control platform of hydraulic support on fully mechanized mining working face in underground coal mines

#7
20170335688
2017-11-23

Roof support monitoring for longwall system

#8
20170276777
2017-09-28

Longwall system creep detection

#9
20170275993
2017-09-28

Longwall system face alignment detection and steering

#10
20170268335
2017-09-21

MINING SYSTEMS

#11
20170019641
2017-01-19

Longwall face support in an underground mine

#12
20160061036
2016-03-03

Roof support monitoring for longwall system

#13
20150218943
2015-08-06

Mining systems

#14
20150069814
2015-03-12

Face equipment comprising hose levels placed on the shield support frames of said face equipment

#15
20150061352
2015-03-05

Face equipment comprising hose levels placed between the face conveyor and the shield support frames

#16
20140369769
2014-12-18

System and method for enabling machine movement

#17
20140265524
2014-09-18

Mining systems

#18
20140265522
2014-09-18

Mining methods and equipment

#19
20140265519
2014-09-18

Mining systems with guidance systems

#20
20140097067
2014-04-10

Longwall equipment with a hydrostatic tube balance thereon for determining the height position of individual elements of the longwall equipment

#21
20130187436
2013-07-25

Coal caving cycle

#22
20120319453
2012-12-20

Method for determining the position or location of plant components in mining extracting plants and extracting plant

#23
20120098325
2012-04-26

Method for the Automated Production of a Defined Face Opening by Means of Slope-Assisted Radar Navigation of the Roller of a Roller Cutter Loader

#24
20120091782
2012-04-19

Method for determining the position or situation of installation components in mineral mining installations and mining installation

#25
20110049964
2011-03-03

Method for controlling longwall mining operations

#26
20110006584
2011-01-13

Method for automatically producing a defined face opening in plow operations in coal mining

#27
20110001348
2011-01-06

Method for controlling longwall operations using boundary layer recognition

#28
20100327650
2010-12-30

Method for automatically creating a defined face opening in longwall mining operations

#29
20100276981
2010-11-04

Shield control device for carrying out the longwall function of a longwall unit in the longwall face working in a mine

#30
20090035072
2009-02-05

Shield support

#31
20080054706
2008-03-06

EXTRACTION CONTROLLER FOR COAL MINING

#32
20060264118
2006-11-23

Control device for electrohydraulic support controller

#33
20060158017
2006-07-20

Apparatus, system, and method for supporting a gate entry for underground full extraction mining