E21D15/585 - CPC Classification Index

ClassID:

136137 ⎘

E21D15/585 - CPC Classification

Classification description:

Props ; Chocks, e.g. made of flexible containers filled with backfilling material; Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important

Sub-classes:

E21D15/586 » {the props being pre-loaded} 1
E21D15/589 » {in which a series of similarly shaped props are given almost equal load capacity by removable devices} 0

Recent Application in this class:

20200240269

2020-07-30

Mechanical constant-resistance single prop continuous prop lifting pre-tightening device and method

20160265685

2016-09-15

Hydraulic assembly for a mining system

20130039704

2013-02-14

Device for roof support of underground mine/tunnel