E21C27/34 - CPC Classification Index

ClassID:

135818 ⎘

E21C27/34 - CPC Classification

Classification description:

Machines which completely free the mineral from the seam; Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements Machine propelled along the working face by cable or chain

Sub-classes:

E21C27/35 » Ram-ploughs 1

Recent Application in this class:

20170292378

2017-10-12

Plow guide assembly for plow guides

20150275664

2015-10-01

EXTRACTION INSTALLATION FOR MINERAL EXTRACTION

20150084396

2015-03-26

MINING PLOW

20140368021

2014-12-18

Plowing device

20130093236

2013-04-18

Demountable pin and collet assembly and method to securely fasten a ranging arm to a longwall shearer using such assembly

20120043802

2012-02-23

Bit arrangement for a mining plough, and mining plough for plough systems

20120032495

2012-02-09

Mining plough for plough systems and plough system for inclined formation

20110095595

2011-04-28

Chain guide for a driving chain of a mining machine

20100294055

2010-11-25

Roof cutter holder adjustment device and securing element therefor

#10

20100263569

2010-10-21

Carriage for a recovery plough

#11

20100259091

2010-10-14

Method for controlling a cutting extraction machine

#12

20100117439

2010-05-13

Device for determining the cutting horizon of a mining extraction system, and pan element therefor

#13

20070205007

2007-09-06

Baseplate plow guide section

#14

20070029863

2007-02-08

Planing device and method for activating a planning device

#15

20050156458

2005-07-21

Chain guide arrangement on a mining machine