E21F5/00 - CPC Classification Index

ClassID:

136264 ⎘

E21F5/00 - CPC Classification

Classification description:

Means or methods for preventing, binding, depositing, or removing dust ; Preventing explosions or fires

Sub-classes:

E21F5/02 » by wetting or spraying 45
E21F5/08 » Rock dusting of mines; Depositing other protective substances 8
E21F5/14 » Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions 1
E21F5/16 » Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust; Deposition of such layers 0
E21F5/18 » Impregnating walls, or the like, with liquids for binding dust 4
E21F5/20 » Drawing-off or depositing dust 14

Recent Application in this class:

20210207481

2021-07-08

Split air cabin ventilation system for construction of tunnel inclined shaft and ventilation method using same

20210002535

2021-01-07

COMPOSITION COMPRISING SATURATED HYDROCARBON AND METHOD FOR DUST SUPPRESSION

20190381344

2019-12-19

Fire Protection Boards And Structures Protected By Such Boards

20190201827

2019-07-04

Dry filter with enhanced separation output and convenient dimensions

20190144568

2019-05-16

CHITOSAN COAGULANT AS A BINDER AND DUST CONTROL AGENT

20180346779

2018-12-06

Composition comprising saturated hydrocarbon and method for dust suppression

20170268338

2017-09-21

Method for efficiently treating spontaneous ignition of remaining coal in large area goaf of shallow-buried coal bed

20170166793

2017-06-15

Method and composition for dust control

20170021207

2017-01-26

Terminating expansion of underground coal fires and protecting the environment

#10

20160354625

2016-12-08

GAS DETECTION AND FIRE SUPPRESSION SYSTEM FOR HYDROGEN SALT CAVERN

#11

20160303591

2016-10-20

Housing for a nozzle

#12

20160060498

2016-03-03

Composition comprising saturated hydrocarbon and method for dust suppression

#13

20150241329

2015-08-27

METHOD OF ASSESSING DUST CONTROLS IN MINING

#14

20150238787

2015-08-27

Valve device and method for preventing explosion propagation

#15

20150233245

2015-08-20

AUTOMATIC WATERING OF WORKSITE

#16

20150232730

2015-08-20

Method and composition for dust control

#17

20130014963

2013-01-17

Quick connect fire and dust suppression system

#18

20120255745

2012-10-11

Coal fire extinguishment method and apparatus

#19

20100189507

2010-07-29

Method and product for absorbing and consolidating nuisance water or slurry accumulations

#20

20080197690

2008-08-21

Highwall mining system, conveyor segment and method for providing such a mining system

#21

20080164747

2008-07-10

Rotary cutting pick

#22

20080092475

2008-04-24

Fire resistant mine door sealing system

#23

20070039744

2007-02-22

Tunnel fire protection system

#24

20050212345

2005-09-29

Rotary cutting bit having spark suppression sleeve

#25

20050060127

2005-03-17

Work site dust control system