ClassID:

135848

E21C31/08 - CPC Classification

Classification description:

Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines

Recent Application in this class:
#1
20240110477
2024-04-04

MINING MACHINE AND METHOD FOR CONTROLLING MOVEMENT OF A MOVABLE ELEMENT OF A MINING MACHINE

#2
20220316334
2022-10-06

Exchangeable milling drum box unit, in particular quick-change milling drum box unit, and ground milling machine comprising a base machine and an exchangeable milling drum box unit

#3
20220049605
2022-02-17

Machine supporting rock cutting device

#4
20210324737
2021-10-21

Intelligent detection and recognition system and method for coal-rock interface of mine

#5
20210102463
2021-04-08

Mining machine with articulating boom and independent material handling system

#6
20200263540
2020-08-20

Shearer cutting unit with double-speed rollers

#7
20200173277
2020-06-04

Machine supporting rock cutting device

#8
20200063554
2020-02-27

Rock cutting device

#9
20200032649
2020-01-30

Rock cutting assembly

#10
20200011174
2020-01-09

Vertical lifting type drum coal-mining machine without rocker arm

#11
20200011173
2020-01-09

Mining machine with multiple cutter heads

#12
20190369255
2019-12-05

Methods and systems for controlling the heading of a mining machine

#13
20180087380
2018-03-29

Machine supporting rock cutting device

#14
20180087379
2018-03-29

Rock cutting device

#15
20180051562
2018-02-22

Mining machine with articulating boom and independent material handling system

#16
20170211383
2017-07-27

Mining machine with multiple cutter heads

#17
20160362979
2016-12-15

Spray system for mining machine

#18
20150275665
2015-10-01

Unmanned intelligent mining machine

#19
20150069814
2015-03-12

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

#20
20140070599
2014-03-13

MINING INSTALLATION FOR EXTRACTING SEAM-TYPE OR MASS-DEPOSIT MINERAL MATERIALS, AND MINING MACHINE FOR THE SAME

#21
20120284999
2012-11-15

Method for mounting a ranging arm on a body of a longwall shearer loader

#22
20100294055
2010-11-25

Roof cutter holder adjustment device and securing element therefor

#23
20050156460
2005-07-21

Advance working or mining machine