| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 01/26/2011 | CN101956543A Petroleum drilling operating handle with safety device |
| 01/26/2011 | CN101476484B Automatic gas discharge apparatus |
| 01/19/2011 | CN201718044U Mine underground intelligent wireless monitoring and positioning system base station |
| 01/19/2011 | CN201714427U Adjustable over-guard permeable alarm |
| 01/19/2011 | CN201709481U Intelligent miner helmet and miner monitoring management system |
| 01/19/2011 | CN101949302A Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof |
| 01/18/2011 | US7871045 Method and system for bracing pipes |
| 01/12/2011 | CN201707780U Remote monitoring system for mineral resource excavation surface operation |
| 01/12/2011 | CN201705394U Miniature methane-oxygen diction and alarm instrument for mine |
| 01/12/2011 | CN201705393U Combined sensor monitoring system for prewarning water bursting disaster in mine |
| 01/12/2011 | CN201705392U Sand leakage warning device of mine filling pipeline |
| 01/12/2011 | CN201705391U Automatic-control tunnel stop valve |
| 01/12/2011 | CN201705367U Automatic blockage monitoring protection device for spraying machine injection pipes |
| 01/12/2011 | CN101945120A Energy-saving mining multimedia emergency rescue communication system |
| 01/12/2011 | CN101943025A Vertical air shaft explosion protection door capable of quickly resetting |
| 01/12/2011 | CN101943003A Shield construction system based on ground penetrating radar |
| 01/12/2011 | CN101446206B Mine fiber optic sensor mounting method and special jaw |
| 01/05/2011 | EP2269088A1 A wireless information and safety system for mines |
| 01/05/2011 | CN201698562U Multifunctional switch of mining underground air door alarm |
| 01/05/2011 | CN201696094U Coal mining waterproof air sac |
| 01/05/2011 | CN201696093U Power supply locking device for coal mine vertical shaft heading face |
| 01/05/2011 | CN201696092U Double-layer folding heat insulating barrel for coal mine roadways |
| 01/05/2011 | CN201696091U Mine ground pressure displacement monitoring system |
| 01/05/2011 | CN201696087U In-mine data recording and safety monitoring system |
| 01/05/2011 | CN201696081U Coal-mine underground gas-explosion safety cap type individual escape device |
| 01/05/2011 | CN201696074U Coal vertical shaft tunneling working surface double-fan double-power ventilation system |
| 01/05/2011 | CN101938514A Heterogeneous multi-channel wireless sensor network based underground monitoring system |
| 01/05/2011 | CN101937216A Mine underground intelligent wireless monitoring and positioning system |
| 01/05/2011 | CN101936185A Methane locking alarm |
| 01/05/2011 | CN101936184A Coalmine power supply monitoring system |
| 01/05/2011 | CN101936183A Mine perviousness alarm |
| 01/05/2011 | CN101936182A System for simulating mine environment |
| 01/05/2011 | CN101122242B Mine down-hole visual positioning and multifunctional safety monitoring network system |
| 12/29/2010 | CN201687523U Gas pump termination automatic alarm device |
| 12/29/2010 | CN201687522U Coal seam gas radio spectrum direction-finding early-warning system |
| 12/29/2010 | CN201687521U Opening system for pressure relief window |
| 12/29/2010 | CN201687520U Mining tunnel temperature-reducing fireproofing reinforcing rib and heat-insulation fireproofing combined wall |
| 12/29/2010 | CN101932131A Heterogeneous multi-channel wireless sensor underground detection system |
| 12/29/2010 | CN101930731A Mining multi-wave self-adaptive active noise control system |
| 12/29/2010 | CN101930229A Mobile carrier-based underground wireless monitoring and positioning system intelligent terminal |
| 12/29/2010 | CN101929353A Underground risk-clearing and rescuing system |
| 12/29/2010 | CN101929352A Explosive material warehouse |
| 12/29/2010 | CN101261238B Methane sensor signal output circuit |
| 12/22/2010 | CN201681489U Mine traffic light controller based on ZigBee wireless sensor network |
| 12/22/2010 | CN201679519U Gas tracking alarm |
| 12/22/2010 | CN201679518U Novel shaft safety door |
| 12/22/2010 | CN201679517U Vehicle-mounted programmable control, automatic tracking multifunctional tunnel cleaning device |
| 12/22/2010 | CN101922310A Security monitoring and managing system of coal mine underground operators |
| 12/22/2010 | CN101922309A Method for preventing mine gas from exploding and implementation device thereof |
| 12/22/2010 | CN101922308A Monitoring and early warning system for mine |
| 12/22/2010 | CN101922307A Security system for power cable tunnel |
| 12/22/2010 | CN101922304A Safe wingspan-type monitoring and alarming system of automatic on-off ventilation wind pressure for mine |
| 12/16/2010 | WO2010142029A1 Systems and methods for monitoring rollers for conveyors |
| 12/16/2010 | WO2010078252A3 Method and system for supplying synthesis gas |
| 12/15/2010 | CN201671658U Coal gas explosion early warning device |
| 12/15/2010 | CN101917776A Autonomous intelligent mine detection multi-robot wireless communication system based on wireless network |
| 12/15/2010 | CN101915123A Water and dust proof low-concentration methane sensor |
| 12/15/2010 | CN101915116A Intelligent dust concentration limit setting spray dust settling device, system and method |
| 12/15/2010 | CN101915115A Protective device for mine drilling construction |
| 12/15/2010 | CN101915090A System and method for monitoring sand production rate of oil-gas well |
| 12/15/2010 | CN101914933A Water supply device for tunnel |
| 12/15/2010 | CN101914912A In-situ testing method for deep underground engineering during rockburst preparation and evolution process |
| 12/09/2010 | WO2010139012A1 Remote assistance system and apparatus |
| 12/08/2010 | CN201666165U Derailment alarm |
| 12/08/2010 | CN101906993A Method and device for early warning explosion of gas and other combustible gases |
| 12/08/2010 | CN101906992A Monitoring system of mine well powder concentration based on wireless sensor network |
| 12/08/2010 | CN101906987A Mine dust concentration and environmental parameter automatic detection and control system |
| 12/08/2010 | CN101906985A Method for remotely monitoring and controlling hydraulic support on underground working surface |
| 12/08/2010 | CN101608545B Method and device for testing gas migration process in coal rock body |
| 12/07/2010 | US7845597 Conduit carrier system |
| 12/01/2010 | CN201661315U Master-slave type gas sensor |
| 12/01/2010 | CN201661314U Mining information display substation |
| 12/01/2010 | CN201661313U Device for monitoring and protecting personal safety by pyroelectric infrared sensor |
| 12/01/2010 | CN201661312U Mine compressed-air intelligent monitoring device |
| 11/25/2010 | WO2010132936A1 Wear plate for cable handler |
| 11/24/2010 | CN201650368U Mine pressure real-time monitoring system based on WSN |
| 11/24/2010 | CN201650367U Portable gas outburst predicting instrument |
| 11/24/2010 | CN201650366U Bottle type compressed natural gas underground storage well |
| 11/24/2010 | CN201650365U Emergent air-tight door applied to communication channel construction |
| 11/24/2010 | CN201650364U Open type triangular pothook for mine-used air cylinder |
| 11/24/2010 | CN201650363U Roadway separation and deformation monitoring system based on WI-FI |
| 11/24/2010 | CN101895328A Intelligent wireless communication system for coal mine |
| 11/23/2010 | US7837156 Cable support hook |
| 11/17/2010 | CN201638048U Multifunctional monitor |
| 11/17/2010 | CN201635771U Speech acousto-optic annunciator utilizing differential balanced transmission in mine |
| 11/17/2010 | CN201635770U Anti-outburst detecting device |
| 11/17/2010 | CN201635769U Working state monitoring and fault prediction system of mine fan |
| 11/17/2010 | CN201635768U Mine-used intrinsically safe voice alarm |
| 11/17/2010 | CN201635767U Device for automatically closing coal mine explosion-proof cover capable of throwing of balance weight after opened by explosive shock wave |
| 11/17/2010 | CN101886550A Method for automatically closing through thrown counterweight after opening coal mine anti-explosion cover by explosion impact wave |
| 11/10/2010 | CN201627604U Safety precaution escaping device for tunnel |
| 11/10/2010 | CN201627603U Sound and light alarm circuit |
| 11/10/2010 | CN201627601U Circular enclosed coal yard conveying coal spontaneous combustion safety monitoring and protecting device |
| 11/10/2010 | CN101881183A Underground monitoring network system based on ZigBee network nodes |
| 11/10/2010 | CN101881182A Simulation and forecast evaluation method for delaying water inrush by mine fracture structure |
| 11/04/2010 | WO2010124340A1 Integrated automation system for regions with variable geographical boundaries |
| 11/04/2010 | WO2010124339A1 Integrated automation system with picture compilation system |
| 11/04/2010 | WO2010124335A1 Integrated automation system |
| 11/04/2010 | US20100276551 Ceiling hanger and method of using same |
| 11/04/2010 | CA2760726A1 Integrated automation system with picture compilation system |