ClassID:

135812

E21C27/22 - CPC Classification

Classification description:

Machines which completely free the mineral from the seam; Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type

Recent Application in this class:
#1
20240337161
2024-10-10

METHOD AND SYSTEM FOR MINING

#2
20230228192
2023-07-20

Cutting device and support for same

#3
20230048925
2023-02-16

Cutting assembly for a mining machine

#4
20220154567
2022-05-19

Method and system for mining

#5
20220090498
2022-03-24

Six-arm tunneling and anchoring machine for integrating tunneling and anchoring

#6
20220010627
2022-01-13

Disc cutter for undercutting apparatus and a method of manufacture thereof

#7
20210317740
2021-10-14

Gravel excavation system

#8
20210047926
2021-02-18

Heading machine with cusp cutter

#9
20200347723
2020-11-05

Cutting device and support for same

#10
20180363462
2018-12-20

Milling Device for Excavating Mining Materials

#11
20180347356
2018-12-06

Apparatus and method for driving a cavity in mining

#12
20180195388
2018-07-12

Drilling and bursting heading machine

#13
20180051561
2018-02-22

Cutting device and support for same

#14
20170167258
2017-06-15

Cutting tool system

#15
20160130941
2016-05-12

Modular cutting head

#16
20160084082
2016-03-24

Milling device

#17
20150322788
2015-11-12

Apparatus and method for storing waste material

#18
20150275663
2015-10-01

Drilling Rig And Method Of Manoeuvring A Drilling Rig

#19
20150097413
2015-04-09

Apparatus and method for storing waste material

#20
20140232170
2014-08-21

Apparatus for the milling cutting of rock, minerals or other materials

#21
20140232168
2014-08-21

Device machining materials by milling or drilling, and method therefor

#22
20140084667
2014-03-27

Apparatus for the milling cutting of rock, minerals or other materials

#23
20140056646
2014-02-27

Apparatus and method for mining coal

#24
20130193743
2013-08-01

Apparatus and Method for Mining Coal

#25
20120319452
2012-12-20

Apparatus and method for mining coal

#26
20110049965
2011-03-03

Apparatus and method for mining coal

#27
20100270849
2010-10-28

HEADING MACHINE

#28
20100001574
2010-01-07

Method and apparatus for the milling cutting of materials

#29
20080116734
2008-05-22

Device for milling rock and other materials and method for milling rock or the like using said device

#30
20070193810
2007-08-23

Drive device for rotating and oscillating a tool, and a compatible tool for mining