| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 12/10/2008 | CN201162545Y Mine safety monitoring system |
| 12/10/2008 | CN201162544Y Intelligent monitoring instrument for mine stray current |
| 12/10/2008 | CN201162543Y Pear shape drilling tool stabilizer |
| 12/10/2008 | CN101320024A Mine gas beam tube monitoring system and recognition method for gas explosivity and fire danger |
| 12/10/2008 | CN101319617A Coal mine down-hole personnel position monitoring system with human body vital sign monitoring function |
| 12/10/2008 | CN101319616A Water-proof sluice gate |
| 12/09/2008 | CA2259346C Mine fire and emergency warning stench injector |
| 12/04/2008 | WO2008145275A1 Method for monitoring and controlling machine resources and installations |
| 12/04/2008 | DE102007023595A1 Verfahren zur langzeitsicheren Verwahrung von lösungserfüllten Kavernen durch Unterschichten mit industriellen Abfällen und einer weiteren Nutzung des verdrängten Lösungsinventars in industriellen Prozessen A method for safe long-term storage of solution-filled caverns sublayers with industrial waste and further use of the displaced solution inventory in industrial processes |
| 12/03/2008 | EP1997277A1 Method and appliance for communication between a large number of mobile stations and a fixed network underground |
| 12/03/2008 | CN201159089Y Down-hole pressure alarm |
| 12/03/2008 | CN101315025A Construction method for rock salt cavity gas storage house |
| 11/26/2008 | CN201155335Y Mine gas automatic detection alarm |
| 11/26/2008 | CN100438134C Intrinsically-safe battery power supply for underground mining |
| 11/20/2008 | WO2008138298A2 Supply line strand |
| 11/12/2008 | CN201150072Y Transmission system for coal mine safety co-cable Ethernet |
| 11/05/2008 | CN201144713Y Control alarming device for mine underground bend |
| 11/05/2008 | CN201144712Y Central control device for mine haulage roadway voice alarm |
| 11/05/2008 | CN101298840A Method for forecasting tunnel construction tunnel face front water burst position |
| 10/30/2008 | DE10029918B4 Verfahren und Einrichtung zum Erfassen der Anwesenheit von Personen im untertägigen Bergbau Method and apparatus for detecting the presence of people in underground mining |
| 10/29/2008 | CN201141314Y Water sealing combined enclosed structure of mine tunnel |
| 10/29/2008 | CN201141309Y Inverted ventilation fire protection device for mine belt transportation lane |
| 10/29/2008 | CN101295430A Optical fiber communication system capable of monitoring multiple mining conveyor belts |
| 10/23/2008 | WO2008125053A1 Para-aramid ventilation pipe |
| 10/23/2008 | CA2682270A1 A p-aromatic polyamide vent duct and its application, and application of p-aromatic polyamide to the vent duct |
| 10/22/2008 | EP1399691B1 Shallow depth, low pressure gas storage facilities and related methods of use |
| 10/22/2008 | CN201137505Y Robot inspection device for urban network tunnel hazardous environment |
| 10/22/2008 | CN101289945A Laneway flexible conduit wiring conveying monorail crane |
| 10/22/2008 | CN101289944A Laneway fluid pipe trailer fixing device |
| 10/21/2008 | US7438506 Jack for carrying and installing mine panels |
| 10/16/2008 | US20080251651 Clamp and seismic sway brace |
| 10/16/2008 | CA2628724A1 Hydraulically powered door and systems for operating same in low-temperature environments |
| 10/08/2008 | CN201129191Y Plastic combined hook for mining |
| 10/08/2008 | CN101280690A Pressure sensor |
| 10/01/2008 | CN201125749Y Coal mine down-hole video black box single core common cable monitoring transmission system |
| 10/01/2008 | CN201125748Y Inclined gallery pedestrian winch capstan close lock and voice warning device |
| 10/01/2008 | CN101278104A Length-variable connection of an intake pipe with a dust channel |
| 10/01/2008 | CN100422506C Mounting device for a cable cup |
| 09/30/2008 | US7429020 Pipe hanger with integral cable tie channel |
| 09/24/2008 | CN101270673A Mash gas overrun signal wireless transmission device based on Li-polymer alarm mine lamp |
| 09/17/2008 | CN101265813A Mine searching multi- robot system based on wireless sensor network |
| 09/17/2008 | CN101265812A Electricity-free optical fiber vibration calling system for down-hole of mine |
| 09/10/2008 | CN201111548Y Machine tail crossheading cable track device |
| 09/10/2008 | CN101261238A Methane sensor signal output circuit |
| 09/10/2008 | CN101260813A Mining intelligent substation |
| 08/28/2008 | US20080203241 Vertical pipe guard |
| 08/28/2008 | US20080203239 Arcuate saddle with partial ribs and methods of manufacture |
| 08/27/2008 | CN101251033A Tunnel detecting robot |
| 08/20/2008 | CN201103416Y Tunnel automatic fast closing device |
| 08/14/2008 | US20080190032 Tunnel Barrier |
| 08/13/2008 | CN101241632A Deep well heat exchanging circulation production system parameters remote real time monitoring system and method |
| 08/13/2008 | CN101240718A Down-hole mining space top board separation layer prealarming method |
| 08/13/2008 | CN101240717A Coal mine down-hole personnel positioning and mash gas concentration dynamic monitoring method and system |
| 08/07/2008 | DE102007017633B3 Closed shaft i.e. mine shaft, securing method, involves diagonally boring set of holes in vertical projection, and attaching and loading carrier, core rods and cement suspension or concrete into holes |
| 08/06/2008 | CN201095988Y Mine ventilating fan remote on-line monitoring system |
| 08/06/2008 | CN101238307A 吸收式消声器的悬架 Absorption-type muffler suspension |
| 08/05/2008 | US7407138 Gangable cable support with improved stiffness |
| 07/30/2008 | CN201092867Y Detecting pipe |
| 07/23/2008 | CN201090249Y Corner plugging air-bag of high firedamp coal face |
| 07/23/2008 | CN201090248Y Apparatus for loosening and opening closed mine |
| 07/23/2008 | CN101225749A Method for supplying water with high voltage in cold area long and large tunnel |
| 07/16/2008 | CN101223336A Method and apparatus for altering gateway structure in monitoring mine section |
| 07/16/2008 | CN101220753A Method for predicting sap exception by measuring coating resistance and capacitance parameter |
| 07/09/2008 | CN101216985A A mine-used monitoring system |
| 07/02/2008 | CN201080831Y Positioning system with cheating monitoring function |
| 07/01/2008 | US7393025 Mine door system with trigger-actuated latch mechanism |
| 06/25/2008 | CN201078243Y Mine dynamic force disaster monitoring system based on acoustic emission |
| 06/25/2008 | CN201078242Y Flame proof and substance safe type transferring substation for mining |
| 06/18/2008 | CN201074528Y Acoustic emission sensor |
| 06/18/2008 | CN201074523Y Safety air bag for plugging mobile coal mine fully-mechanized mining working surface cap |
| 06/11/2008 | CN101196560A Coal mine down-hole positioning device and positioning method thereof |
| 06/05/2008 | WO2008045722A3 Locating temperature changes in a workspace |
| 06/04/2008 | CN100392210C System for mine safety monitoring and disaster emergency communication and method for operating the same |
| 06/04/2008 | CN100392209C Rock salt deposit horizontal chamber type oil-gas depot and its building method |
| 05/28/2008 | CN201065769Y Mine dust on-line monitoring and controlling system |
| 05/22/2008 | WO2008060308A2 Data model for risk assessments |
| 05/21/2008 | CN201063768Y Mining safety type emergent rescue wireless audio/video relay |
| 05/14/2008 | CN201059204Y Mining area tunnel transport knick-point early-warning device |
| 05/14/2008 | CN100387806C Gas preventing and control navigation method for coal mine production mine |
| 05/06/2008 | US7367363 Sanitary conduit support systems |
| 05/02/2008 | WO2007142917B1 Mine barrier survival system |
| 04/30/2008 | CN201054640Y Under-well portable positioning and voice communication device |
| 04/29/2008 | CA2387366C Method and arrangement for preventing the passage of a mining vehicle |
| 04/24/2008 | US20080093510 Cable support and method |
| 04/23/2008 | CN201050385Y Down-hole mechanical safe operation voice prompting device |
| 04/23/2008 | CN201050375Y Alarming support for coal mine |
| 04/23/2008 | CN100383515C Portable gas monitoring equipment with illuminating function |
| 04/17/2008 | WO2008045722A2 Locating temperature changes in a workspace |
| 04/17/2008 | CA2664320A1 Locating temperature changes in a workspace |
| 04/15/2008 | US7356896 Mounting device for a cable cup |
| 04/10/2008 | US20080085161 Method And System For Monitoring And Documenting Installation of Rock Reinforcement Bolt |
| 04/09/2008 | EP1907668A1 Method and apparatus for monitoring gateroad structural change |
| 04/02/2008 | CN100378293C Drilled hole fixing device |
| 03/27/2008 | WO2008034255A1 Network for confined hazardous or other extreme environments |
| 03/27/2008 | CA2628632A1 Network for confined hazardous or other extreme environments |
| 03/26/2008 | CN101148992A Over/under monorail system for longwall mining operations |
| 03/18/2008 | CA2272559C Tire manipulator for mine service vehicles |
| 03/13/2008 | WO2007142917A3 Mine barrier survival system |
| 03/12/2008 | CN201035125Y Remote leak test device for down-hole undervoltage feed switch |
| 03/12/2008 | CN101141537A Digital miner system and method for down-hole of coal mine |