E21C25/00 - CPC Classification Index

ClassID:

135765 ⎘

E21C25/00 - CPC Classification

Classification description:

Cutting, Slitting, Dislodging

Sub-classes:

E21C25/02 » Machines slitting solely by one or more percussive tools moved through the seam 9
E21C25/06 » Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate 74
E21C25/16 » Machines slitting solely by one or more rotating saws, cutting discs, or wheels 45
E21C25/20 » Machines slitting solely by one or more reciprocating sawing implements or reciprocating cutter chains; Shaker conveyers with cutting means 4
E21C25/22 » Machines slitting solely by one or more cutter chains moving unidirectionally along jibs 3
E21C25/52 » Machines incorporating two or more of the slitting means according to groups , , , and 3
E21C25/54 » Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like 5
E21C25/56 » Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face, e.g. by a conveyer, by a guide parallel to a conveyer 7
E21C25/58 » Machines slitting by drilling hole on hole 9
E21C25/60 » Slitting by jets of water or other liquid 8
E21C25/62 » Machines for making slits approximately perpendicular to the seams either level with, or above or below the level of, the machine 0
E21C25/64 » Slitting machines guided solely by hand and either carried by hand or mounted on supports 3
E21C25/66 » Machines for making slits with additional arrangements for drilling 3
E21C25/68 » Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means 22

Recent Application in this class:

20170016322

2017-01-19

Cutter assembly with freewheeling cutting elements

20160160643

2016-06-09

Air flow system for mining machine

20160097277

2016-04-07

Fiber optic shape sensing adapted to cutter module of highwall miner

20150345290

2015-12-03

SURFACE MINING TOOTH RETENTION

20150218776

2015-08-06

Cutter assembly with freewheeling cutting elements

20150069816

2015-03-12

Cutting bit retaining assembly

20150032433

2015-01-29

Cutting drum and method of designing a cutting drum

20150001912

2015-01-01

Wethead seal design for continuous mining machine

20140232171

2014-08-21

Air flow system for mining machine

#10

20130241263

2013-09-19

Method and apparatus for auxilary seafloor mining

#11

20100078218

2010-04-01

Method of drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow

#12

20070158072

2007-07-12

Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making