E21C27/10 - CPC Classification Index

ClassID:

135802 ⎘

E21C27/10 - CPC Classification

Classification description:

Machines which completely free the mineral from the seam by both slitting and breaking-down

Sub-classes:

E21C27/12 » breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools 2
E21C27/14 » breaking-down effected by force or pressure applied to side of slit, e.g. by wedges 1

Recent Application in this class:

20170159431

Longwall optimization control

20160362979

Spray system for mining machine

20120267940

Material guide assembly

20120253584

Imaging-based interface sensor and control device for mining machines