| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 09/26/2013 | WO2013107637A3 Device and method for supplying energy to sensors in the mining industry |
| 09/26/2013 | DE102010055544B4 Systemeinheit zum Betrieb eines untertägigen hydraulischen Schreitausbaus System unit for operating an underground hydraulic powered roof |
| 09/25/2013 | CN203219501U CDMA-based underground wireless communication system |
| 09/25/2013 | CN203219318U Integrated mine communication system based on CDMA technology |
| 09/25/2013 | CN203214105U Water prevention and control early-warning device under coal mines |
| 09/25/2013 | CN203214104U Smoke transducer |
| 09/25/2013 | CN203214103U High-precision gas density long-distance alarm |
| 09/25/2013 | CN203214102U Mine multifunctional alarming device |
| 09/25/2013 | CN203214101U Carbon monoxide sensor for coal mine pipeline |
| 09/25/2013 | CN203214100U 煤矿安全监测系统 Coal Mine Safety Monitoring System |
| 09/25/2013 | CN103328769A System and apparatus for connecting a gas source to a thermal oxidizer |
| 09/25/2013 | CN103321681A Monitoring and pre-warning method and system for coal mine roadway roof collapse disaster |
| 09/25/2013 | CN103321680A Fire-proof early warning and control system for coal seam drilling construction |
| 09/25/2013 | CN103321679A Special cable rack for railway tunnels and subways |
| 09/18/2013 | CN203204995U Mining explosive-proof display screen |
| 09/18/2013 | CN203201593U Automatic gas reverse-flow pre-warning fast power-off device |
| 09/18/2013 | CN203201592U Waterproof gate capable of being controlled remotely and automatically |
| 09/18/2013 | CN203201591U Remote control water door with automatic moving type electric wire frame |
| 09/18/2013 | CN103312421A Safe refuging wireless ground penetrating communication system for mine |
| 09/18/2013 | CN103312295A Denoising method and system for underground coal mine rock noise monitoring system |
| 09/18/2013 | CN103308881A Wireless positioning system and beacon card |
| 09/18/2013 | CN103306726A Simple gas alarm circuit device |
| 09/18/2013 | CN103306725A Flexible airbags for coal working face and method adopting same to block off corners |
| 09/18/2013 | CN103306724A Convex cage-shaped closed gob energy-absorbing structure and construction method thereof |
| 09/18/2013 | CN103306723A Convenient gas curtains for coal working face and method adopting same to block off corners |
| 09/18/2013 | CN103306722A Detection evaluation method for microearthquake multi-dimensional information integration area of impact danger zone |
| 09/18/2013 | CN102434208B Method and system for forecasting coal and gas bursting |
| 09/18/2013 | CN102155265B Method for monitoring abnormal gas amount monitoring information in coal mine monitoring system |
| 09/11/2013 | CN203190070U LED mine lamp with gas alarm and momentary charging |
| 09/11/2013 | CN203189065U Mining gas pipe fire detector having pollution prompt alarm capability |
| 09/11/2013 | CN103299034A 锚固装置 Anchoring device |
| 09/11/2013 | CN103297916A Wireless remote intelligent locomotive positioning system and alarm apparatus |
| 09/11/2013 | CN103292129A Lifting mechanism |
| 09/11/2013 | CN103291364A Microearthquake multi-dimensional information comprehensive timing sequence early-warning method for rock burst |
| 09/11/2013 | CN103291363A Mining wireless pressure acquiring substation |
| 09/11/2013 | CN103291362A Downhole environment monitoring device with positioning function |
| 09/11/2013 | CN103291361A Coal mine underground water control alarm |
| 09/11/2013 | CN103291360A Mine monitoring system based on mixed sensing network |
| 09/11/2013 | CN103291359A Coal production monitoring system |
| 09/11/2013 | CN103291358A Intelligent safety management system based on RFID (radio frequency identification) for coal production |
| 09/11/2013 | CN103291274A Intelligent display control system for coal mine deep hole drilling vehicle |
| 09/10/2013 | CA2487523C Mine ventilation panel system |
| 09/04/2013 | CN203181232U Coal mine power supply wireless communication command system |
| 09/04/2013 | CN203175619U Portable mining intrinsically-safe information recording device |
| 09/04/2013 | CN203175618U Coal mine hidden danger real-time positioning and early warning device |
| 09/04/2013 | CN203175617U Coal mine safety monitoring system based on CAN bus |
| 09/04/2013 | CN203175616U Mining cable-supporting device |
| 09/04/2013 | CN103281804A Data collecting substation for mine laneway wireless sensor network |
| 09/04/2013 | CN103281467A Mine intrinsic safety type mobile phone communication system |
| 09/04/2013 | CN103277138A Auxiliary management system for coal mining gas |
| 09/04/2013 | CN103277137A Forecasting method for gas outburst of tunneling coal roadway |
| 09/04/2013 | CN103277134A One ventilation and three prevention equipment comprehensively preventing driving face accidents |
| 09/04/2013 | CN103277133A One ventilation and three prevention equipment comprehensively preventing stoping face accidents |
| 09/04/2013 | CN103277132A One ventilation and three prevention equipment comprehensively preventing stoping face accidents |
| 09/04/2013 | CN102536322B Mining acousto-optic alarm |
| 09/04/2013 | CN102352776B Gas buffer explosion-proof door |
| 09/04/2013 | CN102312455B Intelligent crushing load tunnel repair machine |
| 08/28/2013 | CN203167287U Coal mine integrated automation mobile terminal system based on TD-SCDMA |
| 08/28/2013 | CN203167080U Mining wireless communication system |
| 08/28/2013 | CN203163773U An intrinsically-safe wireless intelligent sensor for mines |
| 08/28/2013 | CN203161298U Intelligent tunnel fire escape system based on wireless sensor network |
| 08/28/2013 | CN203161297U Movable rechargeable sound-light warning device |
| 08/28/2013 | CN203161296U Simple alarm apparatus for tunnel construction |
| 08/28/2013 | CN203161295U Corner separation gas bag |
| 08/28/2013 | CN203161294U Cleaning system for scattered matters of mine belt conveyor |
| 08/28/2013 | CN203161289U Amphibious caterpillar band rocker-type searching and rescuing vehicle for mine disasters |
| 08/28/2013 | CN203161042U Pressure relief device of mineral air-tight door |
| 08/28/2013 | CN203159012U Warning device for derailment of hoisting transportation in inclined shaft |
| 08/28/2013 | CN103269526A Wireless sensor network for mine laneways |
| 08/28/2013 | CN103269249A Mining optical fiber type audio acquisition device and mining audio communication system |
| 08/28/2013 | CN103267977A Underground construction surrounding rock disaster whole time interval induced polarization monitoring method |
| 08/28/2013 | CN103266919A Network digital straight-bar direct-reading roof separation instrument |
| 08/28/2013 | CN103266918A Network digital parallel direct-reading roof separation instrument |
| 08/28/2013 | CN103266917A Roof bed separation monitoring system based on fiber grating |
| 08/28/2013 | CN103266916A Special water spray fire resisting shutter device for tunnel |
| 08/28/2013 | CN103266911A Multifunctional wireless sensor for mineral automatic water spraying and dust falling device |
| 08/28/2013 | CN102269014B Coal mine down-hole fire monitoring system based on wireless sensor network |
| 08/21/2013 | CN203150180U Positioning cable |
| 08/21/2013 | CN203146030U Gas monitoring system based on CAN bus |
| 08/21/2013 | CN203146029U Intrinsic-safety-type mine down-hole worker identification card |
| 08/21/2013 | CN203146028U Coal mine dust intelligent monitoring system based on wireless network |
| 08/21/2013 | CN203146027U Cavity body comprehensive monitoring warning device |
| 08/21/2013 | CN203146026U Safety consciousness reminding device for dangerous type of work in mine |
| 08/21/2013 | CN203146025U Multi-parameter sensor for coal mine |
| 08/21/2013 | CN203146024U Light-emitting diode (LED) alarm lamp for mines |
| 08/21/2013 | CN203146023U Coal mine wind direction sensing and controlling device |
| 08/21/2013 | CN203146022U Underground coal mine suspension type cable sliding collecting device |
| 08/21/2013 | CN203146021U Cable rack |
| 08/21/2013 | CN203146020U Cable rack |
| 08/21/2013 | CN203146019U Connecting rod lifting type water blocking cover plate |
| 08/21/2013 | CN203146004U Intrinsic safety type mine underground personnel managing system |
| 08/21/2013 | CN203146001U Device for decongesting search and rescue route in advance based on automatic search of search and rescue target |
| 08/21/2013 | CN103256073A Underground coal mine pressure bump zoning grading predication method |
| 08/21/2013 | CN102913287B Safe monitoring method for mine underground reservoir |
| 08/21/2013 | CN102589763B Performance online monitoring system for filler |
| 08/21/2013 | CN102345473B Mine intrinsic safety type automatic drainage and measurement and control protection device |
| 08/14/2013 | CN203136080U Novel mine working surface wireless communication control device |
| 08/14/2013 | CN203130579U Coal mine ventilator online monitoring and diagnosing device based on vibration signal detection |
| 08/14/2013 | CN203130161U Portable gas surveymeter with telescopic function |
| 08/14/2013 | CN203130160U Fireproof monitoring device in goaf area of stope face |