| Patents for E21F 1 - Ventilation of mines or tunnels; Distribution of ventilating currents (2,288) |
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| 03/21/2012 | CN102383850A Full-automatic safety facility with operator positioning function for well mine of stope face |
| 03/21/2012 | CN102383849A Full-automatic safety equipment mounted with personnel positioning device for well lane of stope |
| 03/21/2012 | CN102383848A Full-automatic safety equipment of driving-face well roadway with personnel positioning |
| 03/21/2012 | CN102383847A Full-automatic safety equipment of driving-face well roadway with personnel positioning |
| 03/21/2012 | CN102383846A Full-automatic safety equipment with personnel positioning system for driving face roadway |
| 03/21/2012 | CN102383845A Full-automatic safety equipment with personnel positioning system for driving face roadway |
| 03/21/2012 | CN102383844A Full-automatic safety equipment with personnel positioning system for heading stope roadway |
| 03/21/2012 | CN102383843A Full-automatic safety equipment for well lane of stope with personnel positioning device |
| 03/21/2012 | CN102383842A Full-automatic safety equipment with personnel positioning function for tunneling working surface roadway |
| 03/21/2012 | CN102383841A Full-automatic safety equipment of stoping-face well roadway with personnel positioning |
| 03/21/2012 | CN102383840A Full-automatic safety equipment of stoping-face well roadway with personnel positioning |
| 03/21/2012 | CN102383839A Full-automatic safety equipment of driving-face well roadway with personnel positioning |
| 03/21/2012 | CN102383838A Full-automatic safety equipment with personnel positioning system for driving face roadway |
| 03/21/2012 | CN102383837A Full-automatic safety facility with operator positioning function for well mine of excavating face |
| 03/21/2012 | CN102383836A Full-automatic safety equipment with personnel positioning system for working face |
| 03/21/2012 | CN102383835A Full-automatic safety equipment of driving-face well roadway with personnel positioning |
| 03/21/2012 | CN102383829A Automatic gas diluter |
| 03/21/2012 | CN102383825A Mine cylinder type dust catcher |
| 03/21/2012 | CN102383821A Fan drum diverter |
| 03/21/2012 | CN102383820A Coal mine underground airbridge construction method |
| 03/14/2012 | CN202165106U 一种煤矿综采用空气冷却器 One kind of fully mechanized coal using air coolers |
| 03/14/2012 | CN202165104U 矿用蝶阀分风器 Mine butterfly air distribution unit |
| 03/14/2012 | CN202165103U 模块式可移动救生舱 Modular mobile JiuShengCang |
| 03/14/2012 | CN202165098U 矿用设有通风气道的支架 Mine has a ventilation air channel bracket |
| 03/14/2012 | CN102373952A Coalface well lane full-automatic safety equipment with personnel positioning system |
| 03/14/2012 | CN102373951A Coalface well lane full-automatic safety equipment with personnel positioning system |
| 03/14/2012 | CN102373950A Coalface well lane full-automatic safety equipment with personnel positioning system |
| 03/14/2012 | CN102373949A Coalface well lane full-automatic safety equipment with personnel positioning system |
| 03/14/2012 | CN102373948A Heading face well lane full-automatic safety equipment with personnel positioning system |
| 03/14/2012 | CN102373947A Mine shaft full-automatic installation equipment used in stope face and equipped with personnel location |
| 03/14/2012 | CN102373941A Mining dual-power dual-fan ventilation system |
| 03/07/2012 | CN202157818U 充气式坑道风量调节风墙 Inflatable air volume control wind tunnel wall |
| 03/07/2012 | CN202157817U 车轮接触式风门自动开启装置 Wheels touch the throttle automatically Opener |
| 02/29/2012 | CN101922304B Safe wingspan-type monitoring and alarming system of automatic on-off ventilation wind pressure for mine |
| 02/22/2012 | CN202148916U 矿井通风高压喷气—流体动力喷水复合蒸发冷却空调机组 Mine Ventilation high pressure jet - water complex hydrodynamic evaporative cooling air conditioning units |
| 02/22/2012 | CN202148915U 一种刚性负压风筒 A rigid suction duct |
| 02/15/2012 | CN102352764A Glass reinforced plastic wind pipe quick connection device |
| 02/08/2012 | CN202140107U 一种乏风非密闭连接装置 One kind of non-sealed connection means VAM |
| 02/02/2012 | WO2012013992A1 Method and system for tunnel ventilation in normal conditions and in conditions of fire |
| 02/02/2012 | CA2804766A1 Method and system for tunnel ventilation in normal conditions and in conditions of fire |
| 02/01/2012 | EP2411881A1 System for controlling an ambient air parameter |
| 02/01/2012 | CN202132062U 煤矿用风动吸尘器 Mine pneumatic vacuum cleaner |
| 02/01/2012 | CN102337916A Ventilation system for tunnel engineering |
| 02/01/2012 | CN101864978B 曲线隧道通风沿程阻力的确定方法 Determination of resistance along the way the curve of the tunnel ventilation |
| 01/25/2012 | CN202125309U Multifunctional hole packer for plugging and injection |
| 01/25/2012 | CN202125306U Underground air door interlocking device |
| 01/25/2012 | CN102330562A Mechanical interlocking device for air doors for mines |
| 01/25/2012 | CN101749018B Coal mining method with direct coal pillar recovery |
| 01/24/2012 | US8100479 Miner acoustic communication and location system |
| 01/18/2012 | CN202119289U Jet stream heat exchange hot air machine set |
| 01/18/2012 | CN202117703U Reinforced concrete pipe for discharging gas in roof gas tail roadway |
| 01/18/2012 | CN202117699U Air window backstop |
| 01/18/2012 | CN202117676U Multifunctional shield subway tunnel structure |
| 01/18/2012 | CN102323998A Method for checking wind-friction resistance value of mine roadway |
| 01/18/2012 | CN102322433A Wireless control relay air feeding device for tunnel construction |
| 01/18/2012 | CN102322282A Exhaust and dust removal complete equipment for underground engineering |
| 01/11/2012 | EP2405099A2 Ventilation system for tunnel engineering |
| 01/11/2012 | CN202109654U Flue gas waste heat air heater unit |
| 01/11/2012 | CN202108532U Air door interlocking device for mines |
| 01/11/2012 | CN202108531U Ventilating device of mine |
| 01/04/2012 | CN202100261U Mounting lining structure of side-wall-separated jet fan of high-speed railway tunnel |
| 01/04/2012 | CN102305095A Flat guide ventilation operation system of extra-long deeply-buried road tunnel |
| 01/04/2012 | CN102305080A Pipe storing device for shield machine |
| 12/28/2011 | CN202093191U 具有磁感应开关的通风检测装置和检测系统 Ventilation detection device having a magnetic sensor switch and detection system |
| 12/28/2011 | CN202090956U 基于zigbee的井下通风状态网络监控系统 Zigbee-based state of underground ventilation network monitoring system |
| 12/28/2011 | CN202090940U 筒体分体式蜂窝线型分风器 Cellular Line split cylinder air distribution device |
| 12/28/2011 | CN202090939U 一种通风房 A ventilating rooms |
| 12/28/2011 | CN102296963A 特长深埋公路隧道的施工工法 Long buried highway tunnel construction method |
| 12/21/2011 | CN202081903U 伸缩型风筒总成 Telescopic duct assembly |
| 12/21/2011 | CN202081902U 移动型风筒总成 Mobile type duct assembly |
| 12/21/2011 | CN202081896U Internal space arranging structure for magnetic levitation tunnel |
| 12/21/2011 | CN202081864U 矿井乏风和排水热能综合利用系统 VAM and drainage heat utilization system |
| 12/21/2011 | CN102287213A 双洞互补式网络通风实验模型 Dual Network ventilation holes complementary experimental model |
| 12/21/2011 | CN102287212A 一种“y”型通风的方法 One kind of "y" type of ventilation methods |
| 12/21/2011 | CN101509389B 公路隧道的平导压入通风的横通道控制方法 Flat guide highway tunnel ventilation push cross-channel control method |
| 12/07/2011 | CN202065011U Monitoring system for main fans in mine shaft |
| 12/07/2011 | CN202064989U 一种公路通风斜井中隔壁施工滑模装置 One kind of road construction next door Sliding deviated ventilation equipment |
| 12/07/2011 | CN102269006A 新型吊架 The new hanger |
| 12/07/2011 | CN102269005A 风机 Fan |
| 12/07/2011 | CN101824998B 双向泄压风门 Bidirectional relief damper |
| 11/30/2011 | EP2390462A1 Method and accessories for installing an airflow duct in an underground conduit |
| 11/30/2011 | CN202055865U 矿井防爆井盖安全气囊自动封堵装置 Mine explosion-proof covers airbags automatic closure device |
| 11/23/2011 | CN202047855U Tunnel ventilation system |
| 11/23/2011 | CN102251791A Folded ventilation duct assembly |
| 11/23/2011 | CN101581227B Coal mine double-layer translation self-control ventilation door device |
| 11/17/2011 | WO2011039157A3 Safety system for road tunnels in case of fire |
| 11/16/2011 | CN202039884U Portable intelligent detector for multiple ventilation parameters of mine |
| 11/16/2011 | CN101566067B Entire-underground cable tunnel safety manhole being used also as ventilation shaft |
| 11/10/2011 | US20110275302 Improved tunnel ventilation device |
| 11/09/2011 | CN202031652U Novel vertical shaft explosion door |
| 11/09/2011 | CN202031634U Distance dust emission equipment |
| 11/09/2011 | CN202031628U Energy conversion dust collection device for fully mechanized excavation face |
| 11/09/2011 | CN202031626U Automatic windshield device for ditch passing through air door of mine |
| 11/09/2011 | CN202031625U Thermal insulation air door device |
| 11/09/2011 | CN202031624U Connection component of mining ventilation duct |
| 11/09/2011 | CN202031623U Coal (waste rock) chute wind-control self-discharging device |
| 11/09/2011 | CN102235175A Smoke elimination and dust settlement construction method for long and large tunnel and dust settlement station used in construction method |
| 11/09/2011 | CN102235133A Opening system for pressure relief windows |
| 11/02/2011 | CN202023579U Self-restoring explosion-proof door |
| 11/02/2011 | CN202023578U Timing self-closing air door for coal mine underground disaster relief air stopping |