| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
|---|
| 03/20/2013 | CN102979557A Device for preventing one ventilation and three prevention accidents of driving face in comprehensive mode |
| 03/20/2013 | CN102979556A Full-automatic safety equipment for driving working face roadway |
| 03/20/2013 | CN102979555A Stope face roadway full-automatic safety equipment |
| 03/20/2013 | CN102979546A Tunnel-submerging ventilation and alarm device for underground coal tunnel |
| 03/20/2013 | CN101858228B Continuous prediction method of gas emission dynamic characteristic outburst of tunneling surface |
| 03/20/2013 | CN101523174B Method and apparatus for locating a localized temperature change in a workspace |
| 03/19/2013 | CA2753091A1 The timony dt1947 rigid steel ug bulkhead assembly |
| 03/13/2013 | CN202799175U Mining wireless communication system |
| 03/13/2013 | CN202798739U Underground wireless broadcasting system |
| 03/13/2013 | CN202798701U Mine underground mobile communication system based on leakage technology |
| 03/13/2013 | CN202788944U Alarm for mine |
| 03/13/2013 | CN202788943U Intrinsically safe roadway roof displacement data acquisition device |
| 03/13/2013 | CN202788942U Rock burst and coal and gas outburst monitoring device by aid of rock noise technology |
| 03/13/2013 | CN202788941U Wireless fidelity (WIFI) digital audio-video communication command system in pit of mine |
| 03/13/2013 | CN202788940U Underground gas storage grotto in anticline geologic structure |
| 03/13/2013 | CN202788939U Bi-directional explosive-proof quick-opening door device for mining |
| 03/13/2013 | CN202788938U Inflatable temporary alternative apparatus for mine explosion-proof door |
| 03/13/2013 | CN202788937U Mine flexible belt transport roadway full-automatic disaster blocking and preventing device |
| 03/13/2013 | CN202788936U Self-moving type telescopic frame wall for blocking off |
| 03/13/2013 | CN202788927U Mining belt conveyor transportation process monitoring system with wireless sensor |
| 03/13/2013 | CN202788926U Safety protection total station |
| 03/13/2013 | CN202788907U Magnetic-induction air duct sensor |
| 03/13/2013 | CN202788345U Rapid locking device for coal mine explosion-proof door |
| 03/13/2013 | CN102970520A Underground monitoring and inspecting device |
| 03/13/2013 | CN102968613A detection system and method of coal mine entering staff uniqueness |
| 03/13/2013 | CN102966377A Mining and intelligent gas identifying and decision-making detection device and method |
| 03/13/2013 | CN102678178B Safety early-warning analyzer for freezing construction for connecting aisle of tunnel and working method of safety early-warning analyzer |
| 03/13/2013 | CN101749004B Control method of interlayer rock salt cavern building with water solution in underground oil and gas storage |
| 03/07/2013 | US20130056171 Systems and methods for an artificial geothermal energy reservoir created using hot dry rock geothermal resources |
| 03/06/2013 | CN202773079U Underground personnel positioning system |
| 03/06/2013 | CN202772928U Underground target positioning system based on distance constraint |
| 03/06/2013 | CN202768076U Voice structure of portable mining intrinsically safe type annunciator |
| 03/06/2013 | CN202768075U Roof separation monitoring device |
| 03/06/2013 | CN202768074U Mining differential pressure sensor |
| 03/06/2013 | CN202768073U Power circuit of methane breaker for coal mine |
| 03/06/2013 | CN202768062U Distress alerting escape system for tunnel construction |
| 03/06/2013 | CN202768057U Hot air conveying and automatic locking explosion-proof device of hot-blast stove for coal mine |
| 03/06/2013 | CN102957995A Intelligent mining wireless positioning communication system |
| 03/06/2013 | CN102953758A High voltage frequency conversion system of mine ventilator with high reliability |
| 03/06/2013 | CN102953746A Automatic safe air door |
| 03/06/2013 | CN102242642B Multielement information coupling prediction method of coal and gas outburst danger |
| 03/06/2013 | CN102031992B Underground working face high-pressure hose clamp |
| 03/06/2013 | CN101988375B Intelligent tractor hoist of deep well in oil field |
| 03/06/2013 | CN101968550B Rock stratum recognizing device and method based on array optical fiber sensor |
| 03/06/2013 | CN101440707B Coal-bed gas pressure measuring instrument and measuring method thereof |
| 03/05/2013 | US8387926 Clamping cam tube support |
| 02/27/2013 | CN202759459U Mining intrinsic safe type converter structure |
| 02/27/2013 | CN202756023U Mining intrinsic safety type card-reading substation |
| 02/27/2013 | CN202756022U Waterproof device of voice alarm for mine |
| 02/27/2013 | CN202756021U Control box call mode for comprehensive protection for mine |
| 02/27/2013 | CN202756020U Remote digital safety pre-warning system for tunnel preliminary bracing stress stability |
| 02/27/2013 | CN102947544A Method for locating persons and/or mobile machines in mine caverns using rfid technology, and longwall face extraction installation for carrying out the method |
| 02/27/2013 | CN102943692A Underground heat exchange chamber |
| 02/27/2013 | CN102116173B Divided type movable isolating door setting for vacuum pipeline transportation |
| 02/27/2013 | CN101975091B Mine curve alarm |
| 02/21/2013 | WO2013025574A2 Generation of renewable energy from mass airflow in undergroud tunnels |
| 02/20/2013 | CN202745944U Coal level alarm |
| 02/20/2013 | CN202745943U Mine emergency rescue command device |
| 02/20/2013 | CN202745942U Downhole gas real-time monitoring system |
| 02/20/2013 | CN202745941U Underground coal mine worker positioning instrument and positioning base station |
| 02/20/2013 | CN202745940U Enclosing construction for gob |
| 02/20/2013 | CN202745939U Coiled tubing hanger |
| 02/20/2013 | CN202745938U Roadway hanger of I-shaped steel frame shed |
| 02/20/2013 | CN202745923U Down hole life sign detection system for mines and life sign positioning identification device |
| 02/20/2013 | CN102937610A Underground methane monitoring and positioning system |
| 02/20/2013 | CN102937036A Method and device for monitoring gas on basis of BP (back propagation) neural network |
| 02/20/2013 | CN102937024A Digging and building method for water-proof gate chamber |
| 02/20/2013 | CN102268952B Coal mine down-hole air sac type airtight cabin door |
| 02/20/2013 | CN101945120B Energy-saving mining multimedia emergency rescue communication system |
| 02/19/2013 | US8376289 Offset hanger |
| 02/19/2013 | US8376288 Lateral storage spool for overhead cable pathway |
| 02/13/2013 | CN202738293U Mining flame-proof and intrinsic-safe type display screen |
| 02/13/2013 | CN202735764U Mine monitoring substation detection device |
| 02/13/2013 | CN202735326U Mining multi-parameter instrument |
| 02/13/2013 | CN202731999U Remote three-dimensional digital early-warming system for deformation stability of primary tunnel support |
| 02/13/2013 | CN202731998U Remote three-dimensional digital early-warming equipment for deformation stability of primary tunnel support |
| 02/13/2013 | CN202731997U Three-dimensional dynamic management combined equipment of gas |
| 02/13/2013 | CN202731996U 矿用无线急停传感器 Mine wireless emergency stop sensor |
| 02/13/2013 | CN202731995U Long-distance digital intelligent monitoring and early warning system for underground engineering harmful gases |
| 02/13/2013 | CN202731994U Coal mine tunnel top layer pressure detecting system |
| 02/13/2013 | CN202731993U Ultralow frequency mile emergency communication system |
| 02/13/2013 | CN202731992U Novel draw shaft and inspection shaft roadway airtight door for mine |
| 02/13/2013 | CN202731979U Automatic watering and dust suppressing device |
| 02/13/2013 | CN202731977U Automatic watering and dust suppressing device |
| 02/13/2013 | CN202731973U Mine roadway air door air pressure induction control device |
| 02/13/2013 | CN102932411A Mining mobile phone safety monitoring system based on geographic information system (GIS) |
| 02/13/2013 | CN102926811A Displacement detection device and method for coal mine tunnel |
| 02/13/2013 | CN102926810A Forecasting method of coal and gas outburst |
| 02/13/2013 | CN102926809A Geomagnetic precise positioning system with complete coverage of mine used in mine |
| 02/13/2013 | CN102926808A Underground coal dressing chamber bottom plate online monitoring device and method based on fiber bragg grating sensing |
| 02/13/2013 | CN102926807A Monitoring and early-warning communication method for mine |
| 02/13/2013 | CN102926806A 激光甲烷传感器 Laser methane sensor |
| 02/13/2013 | CN102926805A Flexible wave blocking wall for underground explosion impact disaster protection |
| 02/13/2013 | CN102926793A Anti-explosion, fireproof, dust-proof and noise-proof device for mine equipment |
| 02/13/2013 | CN102182513B Ground stress coal and gas outburst hazard multi-information coupling prediction method |
| 02/13/2013 | CN102102536B Method for storing gas by using abandoned tunnel |
| 02/06/2013 | CN202718709U Warner receiving end with global position system (GPS) locating function |
| 02/06/2013 | CN202718708U Intelligent waterproof gate for mine |
| 02/06/2013 | CN102913287A Safe monitoring method for mine underground reservoir |
| 02/06/2013 | CN102913286A Drilling cutting method impact dangerousness detection automation analyzing system and method for coal mines |