| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 03/12/2008 | CN101139938A Nethod for driving mining device |
| 03/12/2008 | CN101139933A Mining gas discharging multi-parameter measuring instrument having negative pressure compensating function |
| 03/11/2008 | CA2334025C Installation for storing of natural gas |
| 03/05/2008 | CN201031712Y Goaf rock sound automatic alarm instrument |
| 03/05/2008 | CN101135245A Device for automatically enclosing tunnel rapidly |
| 03/04/2008 | US7337865 Arrangement for passage control of mine vehicles |
| 02/27/2008 | CN201027478Y Novel anti-fire door for mining |
| 02/20/2008 | CN201025070Y Intelligent detection sensor |
| 02/20/2008 | CN201025069Y Wind canister release annunciator |
| 02/20/2008 | CN201025068Y Reinforced concrete protection door for railway tunnel without threshold |
| 02/20/2008 | CN201025067Y Explosion proof and fire proof protection door for railway tunnel without threshold |
| 02/14/2008 | WO2008017464A1 Decentralized power supply unit for use in underground coal mining operations |
| 02/13/2008 | EP1887268A1 Perforated strip |
| 02/13/2008 | CN101122242A Mine down-hole visual positioning and multifunctional safety monitoring network system |
| 02/13/2008 | CN101122241A Emergent radio gathering apparatus for mine environmental parameter and gathering method |
| 02/13/2008 | CN101122240A Mine down-hole personnel automatic statistical analysis system |
| 02/12/2008 | CA2318802C Method in operating a cavern for gas |
| 02/07/2008 | DE202007016195U1 Trägervorrichtung zur Befestigung von Rohren in einem Tunnel, insbesondere an einem Tübbingring A support device for fixing pipes in a tunnel, in particular in a tubbing ring |
| 02/06/2008 | CN101117892A Coal mine gas detecting and draught fan automatic control system |
| 02/06/2008 | CN101117891A Coal mine gas detecting and draught fan automatic control device |
| 02/05/2008 | US7325776 Suspensory fastener for piping |
| 01/30/2008 | CN201013406Y Down-hole people positioning system based on blue-tooth technology |
| 01/30/2008 | CN101113675A Coal mine tunnel life searching and positioning work attendance system |
| 01/29/2008 | US7324007 Instrumented rock bolt, data logger and user interface system |
| 01/23/2008 | CN101109290A Down-hole light pass-through type sealing device |
| 01/23/2008 | CN101109289A Manufacture method of down-hole light pass-through type sealing device |
| 01/23/2008 | CN101109288A Use method of down-hole light pass-through type sealing device |
| 01/23/2008 | CN101109287A Inert gas pressure polyurethane spouting equipment |
| 01/22/2008 | CA2490639C Mine stopping |
| 01/17/2008 | WO2008006174A1 Thermal energy storage system |
| 01/17/2008 | US20080011908 Hanger clamp with hanger strap |
| 01/17/2008 | US20080011907 Intravenous line organizer |
| 01/16/2008 | CN101105140A Mine dust on-line monitoring and controlling system |
| 01/16/2008 | CN101105139A Inert gas pressure polyurethane jet method |
| 01/09/2008 | CN201003413Y Down-hole safe alarming and personnel management device for coal mine |
| 01/03/2008 | DE19944032B4 Vorrichtung und Verfahren zur Erzeugung seismischer Schwingungen Apparatus and method for generating seismic vibrations |
| 12/20/2007 | DE10316008B4 Verfahren und Vorrichtung zur sicheren Notbeleuchtung von Tunneln Method and apparatus for safe emergency lighting of tunnels |
| 12/19/2007 | CN200993016Y Continuous miner gas monitoring system |
| 12/19/2007 | CN200992928Y Hanging-bridge type pneumatic control rescuing door |
| 12/19/2007 | CN200992927Y General pneumatic control rescuing door |
| 12/19/2007 | CN200992926Y Push-pull type pneumatic control rescuing door |
| 12/19/2007 | CN200991986Y Electric heating device for plastic pipeline welding device of bottom coal mine |
| 12/19/2007 | CN101089367A Gas dust integral preventing system for coal mine |
| 12/12/2007 | CN200989836Y Wind tunnel wall stress tester |
| 12/12/2007 | CN200989217Y Mining flame-proof and intrinsically safe sound alarmer |
| 12/12/2007 | CN200989216Y Underground moving bus |
| 12/12/2007 | CN200988305Y Underground plastic pipeline welder for coal mine |
| 12/11/2007 | US7306400 Leaching chamber having dosing pipe hanger |
| 12/06/2007 | WO2007137442A1 Method and device for determining displacements and/or deformations in underground working |
| 12/05/2007 | CN200985802Y Vacuum duplicate supply wind electric mash gas electric closedown switch |
| 12/05/2007 | CN101082282A Movable coal mine fully-mechanized mining working faces end head plugging air bag for safety |
| 12/05/2007 | CN100353147C Tracking reception piloting device in trenchless guiding instrument system |
| 12/05/2007 | CN100353146C Prospecting guiding emitting probe in non-excavating guider system |
| 12/05/2007 | CN100353145C Non-excavating guider |
| 11/29/2007 | US20070272806 Pipe hanger |
| 11/29/2007 | DE102006041561B3 Personentransportsystem für den Untertage-Bergbau mit einem absenkbaren Schienenstrang Passenger transport system for underground mining with a retractable rail track |
| 11/29/2007 | DE102005019644B4 Vorrichtung zur Verbindung von Hochdruck-Rohrleitungen Device for connecting high pressure pipes |
| 11/28/2007 | CN200982899Y Hole wall stress testing device |
| 11/28/2007 | CN101078352A Hermetic door for vacuum pipe system |
| 11/21/2007 | CN200978682Y Coal mining air shaft explosion-proof door locking device |
| 11/14/2007 | CN200975263Y Language acousto-optic signal device for mining |
| 11/14/2007 | CN101070763A Visible wireless commanding device for mine rescure |
| 11/07/2007 | CN200971790Y Mine flame-proof magnetic starter and lighting comprehensive protection combined switch |
| 10/31/2007 | DE102005042257B4 WLAN-Zugangsgerät für den Einsatz in gasgefährdeten Grubengebäuden Wi-Fi device for use in gas dangerous pit buildings |
| 10/31/2007 | CN200969453Y Multifunctional sensor socket |
| 10/31/2007 | CN200969452Y Plug-and-play sensor socket for mine |
| 10/31/2007 | CN200968222Y Coal mine down-hole deep borehole micro-earthquake monitoring device |
| 10/31/2007 | CN101063410A Mine safety early warning and rescue information systems |
| 10/24/2007 | CN200964868Y Heavy load draw-gate structure |
| 10/23/2007 | US7284728 Pipe hanger assembly |
| 10/18/2007 | US20070241240 Air brake hose support |
| 10/16/2007 | US7281689 Pipe support assembly |
| 10/10/2007 | CN200958344Y Fireproof channel gate |
| 10/03/2007 | CN101046154A 矿井安全监控救援系统 Rescue Mine Safety Monitoring System |
| 10/03/2007 | CN101046153A Explosion-proof relief closed unit |
| 09/27/2007 | WO2007107029A1 Method and appliance for communication between a large number of mobile stations and a fixed network underground |
| 09/27/2007 | CA2645443A1 Method and appliance for communication between a large number of mobile stations and a fixed network underground |
| 09/26/2007 | CN101042052A Explosion prevention pressure relief enclosed device |
| 09/26/2007 | CN100339556C Apparatus and method for monitoring spontaneous fire of mine |
| 09/20/2007 | WO2007106532A2 Air brake hose support |
| 09/20/2007 | US20070215756 Movable cover-plate of a computer host |
| 09/20/2007 | US20070215755 Mounting tool for c-type clip |
| 09/19/2007 | CN101040133A Line protecting apparatus |
| 09/18/2007 | US7270501 Expandable rock bolt and rock bolting system |
| 09/11/2007 | US7267505 Mine ventilation panel system |
| 09/06/2007 | US20070205335 Pipe hanger with integral cable tie channel |
| 09/06/2007 | DE112005002535T5 Leitungsvorrichtung Line device |
| 09/05/2007 | CN101029930A Personnal positioner under well |
| 08/30/2007 | WO2007038182A3 Corrosion-inhibiting liner for a pipe support |
| 08/29/2007 | CN200940498Y Down hole shallow hole micro quake monitor device |
| 08/22/2007 | CN1333236C Driller synchoronous display in non-excavating guider system |
| 08/22/2007 | CN101021163A System and method for preventing mine car from evading weighing |
| 08/21/2007 | CA2390614C Mine stopping, permanent stopping form and method of installing same |
| 08/16/2007 | US20070187557 Sway brace clamp and connector assembly |
| 08/16/2007 | US20070187556 Vertically adjustable pipe support apparatus |
| 08/15/2007 | CN2934582Y Coal mine methane detection and automatic fan control device |
| 08/14/2007 | CA2292117C Mine stopping, method of constructing same and panels thereof |
| 08/08/2007 | CN101012727A Flooding-proof closing partition device of underground structural engineering |
| 08/02/2007 | US20070177943 Jack for carrying and installing mine panels |
| 08/02/2007 | US20070176056 Aerial pipe arrangement and method of aerially arranging pipes |