| Patents for E21F 1 - Ventilation of mines or tunnels; Distribution of ventilating currents (2,288) |
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| 03/03/2015 | US8966846 Steel anchored reinforced mine seal |
| 02/11/2015 | CN204152556U 一种电缆隧道安全岛 A cable tunnel refuges |
| 02/11/2015 | CN204152537U 采煤工作面沿空留巷z型通风系统 Coalface Gob - z-type ventilation system |
| 02/11/2015 | CN204152536U 一种采煤工作面uu型通风系统 One kind uu coalface ventilation system |
| 02/04/2015 | CN204140115U 一种矿用通风机组 Ore ventilation unit |
| 02/04/2015 | CN104329111A 矿用近零风阻降尘幕帘方法 Mine near zero drag dust curtain method |
| 02/04/2015 | CN104329108A 一种矿井多工作面风压整体动态平衡控制系统及控制方法 Face Pressure in mine more overall dynamic balance control system and control method |
| 02/04/2015 | CN103147782B 联动式风门底坎 Sill style throttle linkage |
| 02/04/2015 | CN102926594B 风门闭锁装置及风门闭锁系统 Throttle and throttle locking device locking system |
| 02/04/2015 | CN102562131B 煤矿瓦斯综合应用系统及其利用方法 Mine gas and using the method of integrated application system |
| 01/29/2015 | DE10292657B4 Absaugvorrichtung für einen Tunnel Suction device for a tunnel |
| 01/28/2015 | CN204126915U 一种高推力可逆转隧道射流风机 A high-thrust jet fans can reverse tunnel |
| 01/28/2015 | CN204126664U 煤矿新型粉尘隔离墙装置 The new wall unit coal dust |
| 01/28/2015 | CN204126663U 一种单洞大断面特长隧道施工通风系统 A single-hole large section of Long Tunnel Construction Ventilation System |
| 01/28/2015 | CN104314601A 自然通风的隧道结构 Natural ventilation of the tunnel structure |
| 01/28/2015 | CN104314600A 三条平行隧道的施工通风方法 Construction of three parallel tunnels ventilation method |
| 01/28/2015 | CN102562151B 滤水充填井 Filling treatment well |
| 01/21/2015 | EP2827215A1 System and method for electronic control of the rotation speed of a fan impeller |
| 01/21/2015 | EP2826953A2 Method and device for fighting fires by smoke extraction |
| 01/21/2015 | CN204113709U 混合式局部通风机 Hybrid local fan |
| 01/21/2015 | CN204113330U 一种竖井雾害控制装置 One kind of damage control device shaft fog |
| 01/21/2015 | CN204113329U 一种全自动智能化安全联锁风门系统 A fully automated intelligent throttle safety interlock system |
| 01/21/2015 | CN204113328U 一种矿井压风自救装置的压风管 Pressure duct a mine air pressure self-help device |
| 01/21/2015 | CN204113327U 板带及由板带制成的硬质负压螺旋状导风筒 Strip and strip made from rigid negative spiral duct |
| 01/21/2015 | CN204113326U 柔性螺旋状导风筒 Flexible spiral duct |
| 01/21/2015 | CN104295312A 一种煤矿防爆系统 One kind of system of coal mine explosion |
| 01/21/2015 | CN104295310A 全气动矿用风门用自动控制装置 Pneumatic mine automatic throttle control device |
| 01/21/2015 | CN102748057B 长距离巷道掘进中使用的通风系统和通风方法 Ventilation system used in long distance roadway excavation and ventilation methods |
| 01/15/2015 | DE102013012054A1 Verfahren und Vorrichtung zur Brandbekämpfung durch Rauchgasabsaugung Method and apparatus for fire fighting by smoke evacuation |
| 01/14/2015 | CN204098947U 一种矿用除尘器 One kind of mining dust |
| 01/14/2015 | CN204098946U 城市综合管廊自然通风结构 Urban Pipe gallery natural ventilation structure |
| 01/14/2015 | CN204098945U 一种新型自动化井下及管道通风系统 A new automated underground piping and ventilation systems |
| 01/14/2015 | CN103266906B 一种巷道风阻参数自调整的验证矿井通风系统状态的方法 Verify that the mine ventilation system state roadway drag method parameter self-adjusting |
| 01/08/2015 | US20150011147 Inflatable ventilation life curtain |
| 01/07/2015 | CN204082701U 一种气动煤矿瓦斯处理装置 One kind of pneumatic coal mine gas treatment device |
| 01/07/2015 | CN204082197U 一种双门扇风门闭锁装置 A dual damper doors locking device |
| 01/07/2015 | CN204082196U 井下风门开门装置及其气动化控制互锁系统 Downhole device and pneumatic throttle control door interlock system |
| 01/07/2015 | CN204082195U 一种风门连锁限位装置 One kind of damper chain stopper |
| 01/07/2015 | CN204082194U 一种光滑导光低风阻风筒 Smoothing the light guide low-drag duct |
| 01/07/2015 | CN204082193U 一种矿井通风降温及余热利用系统 In mine ventilation and cooling and waste heat utilization system |
| 01/07/2015 | CN204082153U 一种锐角连接的竖井结构 An acute angle shaft structure connected |
| 01/07/2015 | CN104265353A 一种治理坚硬顶板综放面初采期瓦斯超限的方法 An early caving mining method of gas overrun comprehensive governance Hard Roof |
| 01/07/2015 | CN104265350A 一种光滑导光低风阻风筒 Smoothing the light guide low-drag duct |
| 01/07/2015 | CN104265349A 一种基于dimine软件的矿井通风系统构建方法 A method of constructing software based dimine Mine Ventilation System |
| 01/07/2015 | CN104265348A 一种优化隧道火灾中竖井自然排烟效果的设计方法 A design method of tunnel fire smoke effect Shaft natural optimization |
| 01/07/2015 | CN104265347A 一种基于排放速率及浓度的多参数隧道通风控制方法 Multi-parameter tunnel emission rates and concentrations based ventilation control methods |
| 01/06/2015 | US8925973 System and method for connecting two flexible containers |
| 12/31/2014 | CN204060792U 一种长距离隧道施工用可移动式通风监测装置 A tunneling construction with removable ventilation monitoring devices over long distances |
| 12/31/2014 | CN204060784U 一种井下供风管道冷凝水自动排放装置 A downhole supply duct condensate automatic discharge device |
| 12/31/2014 | CN204060762U 一种高度可调的升降式地面风口构造 A highly adjustable elevating floor outlet structure |
| 12/31/2014 | CN204060761U 用于电缆沟的通风装置 Cable channel for ventilation |
| 12/31/2014 | CN104251141A 井下风门开门装置及其气动化控制互锁系统 Downhole device and pneumatic throttle control door interlock system |
| 12/31/2014 | CN102644473B 一种轻质塑编内粘膜风筒 Within a lightweight woven duct mucosa |
| 12/24/2014 | CN204041091U 矿用通风机风门快速切换装置 Mine fan damper fast switching devices |
| 12/24/2014 | CN204041090U 隧道排风道用的烟道板结构 Road tunnel exhaust flue plate structure with |
| 12/24/2014 | CN104234735A 一种高度可调的升降式地面风口构造 A highly adjustable elevating floor outlet structure |
| 12/24/2014 | CN104234734A 一种深井高地压强冲击煤层新型风桥施工方法 One kind of deep coal seams impact of new wind pressure Highlands bridge construction methods |
| 12/24/2014 | CN103277128B 城市轨道交通工程战时防护通风转换系统 Urban Rail Transit Project wartime conversion protective ventilation system |
| 12/24/2014 | CN102865099B “三下”开采充填工艺 "Three of" mining filling process |
| 12/24/2014 | CN102852543B 覆膜竹胶板无压风门及其生产方法 Plywood covered without pressure damper and its production method |
| 12/17/2014 | CN204025120U 一种基于模糊控制的隧道通风节能控制系统 An energy-efficient tunnel ventilation control system based on fuzzy control |
| 12/17/2014 | CN204024694U 一种用于防爆井盖的固定装置 Fixtures for proof manhole cover |
| 12/17/2014 | CN204024693U 一种隧道用射流风机 A tunneling with jet fans |
| 12/17/2014 | CN204024692U 一种预埋型快接玻璃钢风筒 One kind of embedded type quick connect fiberglass duct |
| 12/17/2014 | CN204024691U 公路隧道专用风机 Highway tunnel dedicated fan |
| 12/17/2014 | CN204024690U 隧道消声用沙基微粒消声装置 Chaki particles tunnel muffler with silencer |
| 12/17/2014 | CN204024689U 一种复合型防突风门调节风窗装置 A composite type anti sudden throttle adjustment Windshield device |
| 12/17/2014 | CN104213937A 一种井下瓦斯实时监测系统 A downhole gas real-time monitoring system |
| 12/17/2014 | CN104213931A 一种矿井通风降温及余热利用系统 In mine ventilation and cooling and waste heat utilization system |
| 12/17/2014 | CN102900452B 利用浅部采空区及废旧巷道地温对深部采区降温的方法 Use of mined-out area and shallow geothermal waste roadway for deep mining area of cooling methods |
| 12/10/2014 | CN204003555U 矿用隔爆兼本质安全型双风机变频调速装置 Mine explosion-proof and intrinsically safe dual fan frequency control devices |
| 12/10/2014 | CN204002920U 一体化抽水送风控制系统 Integrated pumping air control system |
| 12/10/2014 | CN204002896U 单洞单线地铁隧道自然通风结构 Single natural ventilation holes and single subway tunnel structure |
| 12/10/2014 | CN204002895U 矿用连杆式液压折叠门 Mine rod hydraulic folding doors |
| 12/10/2014 | CN204002894U 升降式风门底坎 Lift throttle sill |
| 12/10/2014 | CN204002893U 矿用风门紧绳装置 Mine damper tight rope device |
| 12/10/2014 | CN204002892U 一种具有无声门轴的气动风门 Pneumatic throttle shaft having a silent door |
| 12/10/2014 | CN204002891U 风门开启装置以及风门 Throttle and throttle opening device |
| 12/10/2014 | CN204002890U 矿井用分风器 Mine with air distribution device |
| 12/10/2014 | CN204002889U 超高分子量聚乙烯防炮崩风筒 UHMWPE Artillery duct collapse |
| 12/10/2014 | CN204002888U 一种新型隧道通风装置 A new tunnel ventilation |
| 12/10/2014 | CN204002887U 井下轨道送风检测系统 Underground rail air detection system |
| 12/10/2014 | CN204002835U 电力隧道 Power Tunnel |
| 12/10/2014 | CN204000793U 一种通风竖井 A ventilating shaft |
| 12/10/2014 | CN104196556A 板带、板带的制作方法及由板带制成的硬质负压螺旋状导风筒 Production methods strip, strip and strip made from rigid negative spiral duct |
| 12/10/2014 | CN104196555A 一种基于无槽盒电缆隧道热场模型的散热方法 A cooling method without trays cable tunnel Thermal Model |
| 12/10/2014 | CN104196554A 一种采煤工作面uu型通风方法及通风系统 One kind coalface uu-type ventilation methods and ventilation systems |
| 12/10/2014 | CN102720520B 一种高速公路特长双孔隧道泄水洞的施工通风方法 One kind of specialty construction method of ventilation holes drain hole in the highway tunnel |
| 11/27/2014 | US20140349562 Change Over Station and Method |
| 11/11/2014 | US8884760 Control system for mine ventilation door |
| 11/06/2014 | US20140329453 Blowing curtain face ventilation system for extended cut mining using passive regulator |
| 11/06/2014 | US20140326159 Active pressurization system making use of platform track area upper slab of underground train station |
| 10/23/2014 | US20140314490 Pumpable mine ventilation structure |
| 10/23/2014 | US20140311042 Method of opening a mine door leaf |
| 09/30/2014 | US8845404 Ventilation tile with collapsible damper |
| 09/18/2014 | US20140273791 Mine airlock system and method |
| 09/04/2014 | CA2843526A1 Box check for conveyor belt and method of installation |
| 08/19/2014 | US8807661 Method of controlling ventilation in a mine entry with polymeric gel |
| 08/13/2014 | CN203769827U 一种风门限位装置 One kind of throttle limiting device |
| 08/13/2014 | CN203769826U 一种侧向式隧道风机架设装置 In a sideways tunnel fan mount devices |