| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 07/02/1997 | CN2257327Y Aluminium alloy binding sealing device |
| 05/28/1997 | EP0775354A1 Sound absorber |
| 03/05/1997 | CN2248780Y Explosion preventing switch casing for mine with regeneration explosion-insulation surface |
| 01/08/1997 | CN2244618Y Closed explosion-preventing case cooler for mine equipment |
| 01/02/1997 | DE19523032A1 Lecithin used as wetting agent in water for settling dust e.g. in coal mines |
| 11/14/1996 | DE19608141A1 Mine roadway explosion barrier |
| 09/19/1996 | WO1996028640A1 Process and device for suspending and installing water troughs used as explosion barriers in underground mining and tunnel building |
| 09/12/1996 | DE19603713A1 Verfahren und Vorrichtung zum Aufhängen und Aufstellen von als Explosionssperre dienenden Wassertrögen im Untertagebergbau und Tunnelbau Method and apparatus for hanging and installation of serving as explosion barriers water wells in underground mining and tunneling |
| 07/17/1996 | CN2231311Y Two-function automatic atomizing control valve |
| 05/23/1996 | DE4440792A1 Explosion barrier for underground mining |
| 05/21/1996 | US5518299 Dust control apparatus for longwall mining machinery |
| 05/15/1996 | DE19537448A1 Water nozzle supply installation for mine walling machines |
| 05/09/1996 | DE4439856A1 Device for absorbing dust in water |
| 03/07/1996 | DE4431063A1 Mobile underground suction conveyor equipment |
| 02/29/1996 | DE19529440A1 Sound-absorbing equipment |
| 02/22/1996 | WO1996005591A1 Sound absorber |
| 01/18/1996 | DE4441719C1 Method for cladding shaft, esp. well shaft |
| 12/27/1995 | CN1113996A Catalytic conversion method for purifying explosive smoke of well |
| 11/28/1995 | US5469920 Inflatable partition for fighting mine fires |
| 11/23/1995 | DE4417671A1 System for supplying underground working with two=component mine rock hardening facility |
| 11/22/1995 | CN2213233Y Expansion plug hole sealing device |
| 10/04/1995 | EP0675263A1 Tunnel dust collecting system |
| 09/06/1995 | CN1107930A Air purifier for coal mine |
| 07/12/1995 | CN2203360Y Underpressured automatic spray valve |
| 06/22/1995 | DE4343493A1 Nozzle system for longwall mining cutter |
| 06/21/1995 | CN2201485Y Mining powerless automatic atomizing device |
| 05/18/1995 | DE4440038A1 Explosion trap for underground mining work |
| 04/27/1995 | DE4336111A1 Wetting agent for binding dust |
| 04/12/1995 | CN2194411Y Automatic sprayer |
| 03/29/1995 | CN2193427Y Automatic atomizing device with hydraulic prop |
| 03/21/1995 | US5398713 Centrifugal valve |
| 03/01/1995 | CN2190696Y Belt machine heavy load automatic spray water supply controller |
| 02/16/1995 | DE4244790C2 Container for suppressing coal-dust and/or fire-damp explosions in underground operations |
| 01/25/1995 | CN1097839A Method of prediction of spraying of rocks in deposits |
| 01/05/1995 | WO1995000745A1 Method of predicting rock bursts in a rock seam |
| 01/05/1995 | CA2143315A1 Method for predicting outburst of seam rock |
| 12/28/1994 | CN2186298Y Microstress deadlock double-dielectric automatic delay controller |
| 11/23/1994 | CN2183448Y Automatic water-spraying dustor |
| 11/16/1994 | CN2182881Y Device for automatic wetting and spaying gas fire |
| 10/26/1994 | CN2180784Y Dust-removing device of air-curtain for mine |
| 09/22/1994 | DE4314704C1 Method of preventive fire protection in bituminous coal mining |
| 09/07/1994 | EP0613994A1 Tunnel dust collecting system |
| 09/07/1994 | CN2176433Y Electronic explosion-proof signaller |
| 08/31/1994 | CN2175830Y External sprayer held on iron-chain guide |
| 08/24/1994 | CN2175306Y Device for sealing coal mine hole by injecting water |
| 08/11/1994 | DE4303384A1 Transport system in particular for the underground transport of explosives |
| 07/07/1994 | WO1994015072A1 Process for inerting a coal mining site |
| 06/29/1994 | CN2170375Y Full-automatic timing sprayer for mine |
| 04/13/1994 | CN1024211C Chemical wetting agent for preventing coal burst and gas burst |
| 03/23/1994 | EP0587991A2 Pickholder for shears drum or cutting head |
| 01/19/1994 | CN2153639Y Automatic sprinkling device |
| 01/05/1994 | EP0577153A1 Aerodynamic air intake opening of a tunnel ventilation unit |
| 12/29/1993 | CN2151255Y Pressure adjustable and non-dust sprayer |
| 12/28/1993 | US5273344 Process for inerting a coal mining site |
| 11/02/1993 | CA1323805C Method for suppressing process dust emissions |
| 10/20/1993 | CN2144179Y Auto-tracking low-termocontroller for sprinkling in mine |
| 10/14/1993 | DE4235359C1 Spray system for underground mining machine - detects quantity of material conveyed to crushing tool to control spray jet intensity for effective dust suppression |
| 10/13/1993 | CN2143677Y Dust collector in tunnel |
| 09/30/1993 | DE4209916A1 Water spraying device for shield type mining machine - is connected to valve which opens or closes according to position of shield. |
| 09/22/1993 | CN2142500Y Mine air purifier |
| 09/01/1993 | CN1021955C Serially connected dust filter for mine ventilation |
| 08/26/1993 | DE4227089C1 Water trough for preventing coal dust and fire damp explosions in mines - is closed by cover suspended or fitted in frame and has groove at upper end of walling in which cover edge extends when trough is closed |
| 08/26/1993 | DE4227087C1 Water trough for combating coal dust and fire damp explosions in mines - is closable by cover suspended or positioned in frame and has groove in area of upper end of trough walling |
| 08/26/1993 | DE4227086C1 Water trough for combating coal dust and fire damp explosions in mines - is closable by cover suspended or fixed in frame with groove connecting to upper end of trough walling |
| 07/28/1993 | CN2139175Y Mechanical controller for automatically impact wave spraying |
| 07/21/1993 | CN2138699Y High efficient magnetic jet dust remover |
| 07/21/1993 | CN2138698Y Automatic uniform pressure controller for fire-extinguish |
| 07/07/1993 | CN2137716Y Portable filtering type self-saving device |
| 07/01/1993 | DE4236904A1 Container for combating coal dust or colliery explosion - consists of collapsible box to hold plastics bag containing fire extinguishing liquid. |
| 06/02/1993 | CN2135063Y Self-spraying dust collector |
| 03/17/1993 | CN2128309Y Water stopping device for water infusion of coal bed |
| 01/14/1993 | DE4143017C1 Container for coal dust and/or fire-damp explosion fighting - has closures with two holders and associated locking member |
| 12/24/1992 | DE4120017A1 Water trough used as anti explosion device in mine - has tapering sides with projecting rib around inside top edge over which flexible flange of cover fits |
| 09/09/1992 | CN2115405U Automatic spraying dust apparatus for mine |
| 08/19/1992 | CN2113346U Automatic spraying dust depositing smoking remover |
| 07/30/1992 | DE4104676C1 Extinguishant container for mine explosion protection - has foldable protective cage, partly formed as grid with coupled rigid plates and segments |
| 07/29/1992 | CN2111366U Wave and smoke control alarm two-purpose machine for dust-proof and fire fighting |
| 07/29/1992 | CN2111365U Automatic pneumatic spraying device for tunnelling face |
| 06/24/1992 | CN2108177U Dust collector |
| 06/11/1992 | DE4138946A1 Water trough stop for underground installation - comprises several water-filled troughs bursting under effect of sudden excess pressure |
| 06/09/1992 | US5119877 Explosion suppression system |
| 05/13/1992 | CN2104297U Ceramics coal-burning tunnel kiln damp chemical smoke-removed dedusting device |
| 04/09/1992 | DE4031530A1 Plastics water trough for combating gas explosions in mine - is weakened in several places for easy fragmentation in case of explosion |
| 03/05/1992 | DE4027310A1 Noise protection barrier wall - is made from loose grains of quartz sand held in perforated container |
| 03/04/1992 | CN2097903U Automatic smoke-cancel duster for mine |
| 01/08/1992 | CN1057699A Method of preventing coal burst and gas burst |
| 10/30/1991 | CN2087691U Mining explosion-proof automatic mist-spray controlling device |
| 09/04/1991 | CN1013789B Wet type dust remover with fibre-gates |
| 06/05/1991 | CN2078374U Alarm for remote-detecting smog in underground mining pit |
| 03/20/1991 | CN1012094B Furifying machine for tunnel environment |
| 02/21/1991 | DE3927373A1 Filter for tunnel driving machine - includes crude gas and pure gas channel in which cylinder controls shutter |
| 01/30/1991 | EP0410428A2 Tunnel dust collecting system |
| 01/09/1991 | CN2069018U Means for depositing dust in mining site |
| 12/19/1990 | CN2067755U Auto-adjusting valve for depositing dust by spraying |
| 11/28/1990 | CN1047216A Serially connected dust filter for mine ventilation |
| 11/07/1990 | CN2065238U Dust-remover of coal-drop |
| 10/17/1990 | CN2063979U Explosion-separation type network safety closed blasting machine |
| 09/26/1990 | CN2062653U Servo pump for adding liquid in constant ratio |
| 09/18/1990 | CA1274083A1 Method for the control of dust using methacrylate containing emulsions and compositions |
| 09/13/1990 | DE3906792A1 Extinguishing-agent container for a release barrier in underground mining |