| Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758) |
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| 10/04/2006 | CN2824395Y Intelligent feed switch for mine live testing leakage |
| 10/04/2006 | CN2823561Y Mine inclined roadway transporting and pedestrian safety monitoring system |
| 10/04/2006 | CN1278017C Tunnel safety water proof apparatus |
| 09/20/2006 | CN2818787Y Personnel positioning monitoring system in underground channel, such as coal mine |
| 09/20/2006 | CN1834405A Remote monitoring precasting method of empty zone hard top plate |
| 09/13/2006 | CN2816358Y Coal-mine underground digital monitor |
| 08/31/2006 | WO2006089349A1 An apparatus for driving a shaft in an excavating device |
| 08/31/2006 | DE102005008936A1 Mobile air purification system for washing air charged with fine material, especially motor vehicle-derived pollutants, comprises frame with water connection, guide plates, spray heads and regulator |
| 08/29/2006 | US7097141 Sway brace clamp and connector assembly |
| 08/23/2006 | CN1821548A Mine natural disaster simulating system |
| 08/22/2006 | US7093808 Clamp holder |
| 08/17/2006 | US20060180713 Clevis hanger pipe support and method |
| 08/16/2006 | EP1616077B1 Arrangement for passage control of mine vehicles |
| 08/16/2006 | CN1818346A Safety explosive-proof and anti-creeping system of belt conveyor in mine well |
| 08/16/2006 | CN1818345A Safety monitoring and preventing system of man and vehicle in oblique transportation in mine well |
| 08/16/2006 | CN1818235A Determination of top-plate structural variation and separating layer |
| 08/15/2006 | US7090173 Para-seismic support for pipes |
| 08/10/2006 | US20060175471 Clevis hanger assembly and pipe insulation coupling |
| 08/02/2006 | CN2800846Y Miner's light helment with gas alarming device |
| 08/02/2006 | CN1811133A Explosion-proof door locking device for coal mine air-shaft |
| 07/26/2006 | CN2799863Y Explosion suppression type high-pressure explosion-proof hard connection structure for mine |
| 07/25/2006 | US7080480 Integrated tree root and storm water system |
| 07/19/2006 | CN2797637Y Full automatic gas prealarming and explosion-proof device used for coal mine |
| 07/12/2006 | CN2795446Y Enclosed array controller for preventing mine gas explosion |
| 06/28/2006 | CN2791258Y Wireless remote control device for hydraulic traction coal producer |
| 06/28/2006 | CN2791257Y Safety explosion-proof anti-creep system for well belt machine |
| 06/20/2006 | US7063657 Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method |
| 06/14/2006 | DE102004059071A1 The device has three-chamber tubing senders in respective bores formed with closed cooling circuits in series so low-pressure line of sender is connected to shaft line with developing high pressure of following sender |
| 06/14/2006 | CN2787839Y Multi-source information gas monitoring instrument |
| 06/14/2006 | CN2787838Y Intelligent monitoring data acquisition and communication device for comprehensive environment of mine |
| 06/14/2006 | CN2787837Y RF gas monitoring instrument for keeping watch |
| 06/14/2006 | CN1788140A Expandable rock bolt and rock bolting system |
| 06/14/2006 | CN1786422A Method and system for monitoring gas in mine |
| 06/08/2006 | CA2529517A1 Pressure sensitive cable device for monitoring rock and soil displacement |
| 06/07/2006 | EP1664486A2 Apparatus for monitoring geotechnical and structural parameters of soils, rocks and structures in general |
| 05/31/2006 | CN1779211A Life supply line under well |
| 05/25/2006 | US20060108480 Line hanger |
| 05/24/2006 | EP1266124B1 Arrangement for determining position of unmanned mining vehicles |
| 05/24/2006 | DE10346890B4 Verfahren und Anordnung zur kontinuierlichen Erfassung von Setzungen an Bauwerken mittels hydrostatischem Schlauchwaagenmeßsystem Method and system for continuous monitoring of subsidence to buildings by means of hydrostatic Schlauchwaagenmeßsystem |
| 05/24/2006 | DE102005013017A1 Floating shaft lining safety device, has tube segments inserted into shaft, and outlet connection provided at base of pipe installation, where connection includes flat contact for filling of annular space |
| 05/24/2006 | CN2782935Y Temporary protective system for people and vehicle safety in conveying of inclined laneway of mine |
| 05/24/2006 | CN1776198A Underground tunnel explosion-proof and combustion-proof airbag |
| 05/18/2006 | WO2005024288A3 Reception, processing, handling and distribution of hydrocarbons and other fluids |
| 05/18/2006 | US20060102806 Bracket for industrial piping |
| 05/17/2006 | CN1773078A Underground monitoring and positioning device |
| 05/11/2006 | DE102004052854A1 Method for the long term storage of cavern and cavern systems filled with saturated sols comprises removing the sols from the caverns to produce a suspension, feeding the suspension back into the caverns and hardening |
| 05/11/2006 | CA2584056A1 Boom arrangement for a scaling device and scaling device |
| 05/09/2006 | US7040586 Bracket assembly |
| 05/04/2006 | US20060090807 Sanitary conduit support systems |
| 05/04/2006 | US20060090806 Sanitary conduit supports |
| 05/04/2006 | US20060090805 Methods for supporting conduits in a sanitary environment |
| 05/03/2006 | CN1766286A Quick closing wall |
| 04/20/2006 | WO2006039750A1 Line protecting apparatus |
| 04/12/2006 | EP1645851A1 Structure monitor system |
| 04/12/2006 | CN2771650Y LED lgiht-source mine-lamp with portable gas detecting-alarming device |
| 04/11/2006 | US7025308 Apparatus for holding and positioning a pipe during installation |
| 04/06/2006 | DE102004045455A1 Explosionsgeschützte elektrische Betriebmittel, insbesondere Leuchten und Verteilerkästen, in überwachten Stromkreisen mit Steckverbindungen Explosion-proof electrical equipment, especially lamps and cabinets in the monitored circuits with connectors |
| 03/15/2006 | CN2764938Y Closing device for water prevention sluice gate of mine |
| 03/15/2006 | CN2764937Y Fire-resistive plugging partition for cable tunnel |
| 03/08/2006 | EP1399691A4 Shallow depth, low pressure gas storage facilities and related methods of use |
| 03/08/2006 | CN2763525Y Cable drawing clamp for pipeline of coal cutter |
| 03/01/2006 | CN2761848Y Mine alarm positioning device |
| 02/22/2006 | CN2760231Y Multifunctional non-spark switchover dotting unit |
| 02/09/2006 | US20060027714 Apparatus and method for making a communication cable support structure |
| 02/08/2006 | EP1623095A1 Expandable rock bolt and rock bolting system |
| 02/08/2006 | CN1730911A Explosion inhibition method for gas accumulation and locked blasting machine for gas accumulation |
| 02/02/2006 | US20060022095 Sway brace fitting |
| 02/01/2006 | CN1727640A Controller for electrohydraulic prop control |
| 01/31/2006 | US6991198 Apparatus for stiffening a hanger rod |
| 01/26/2006 | US20060016937 Suspension clamping holder for a support structure |
| 01/26/2006 | DE102004024073A1 Device for detecting person in hazard area, especially in mine, has portable transmitter-receiver with 2 transmitters and 2 receivers; one receiver has 3 orthogonal independent coils operating at 9 KHz, one has one coil operating at 7 KHz |
| 01/18/2006 | EP1616077A1 Arrangement for passage control of mine vehicles |
| 01/18/2006 | CN2752441Y Intelligent gas monitoring instrument |
| 01/12/2006 | WO2005036688A3 Fuel cell used in underground mining |
| 01/04/2006 | CN1715615A Gas preventing and control navigation system for coal mine production mine |
| 12/28/2005 | CN2748642Y Rocker type full storehouse protection sensor device of unloading system for coal mine main well |
| 12/22/2005 | DE202005016207U1 Supply line for connecting hydraulic mine support to hydraulic supply system fed along conveyor has variable length connecting inner channel formed by cylindrical tube and telescopically guided piston arrangement within it |
| 12/08/2005 | US20050271475 Inspectable tunnel for underground pipes and cables |
| 12/07/2005 | EP1511918B1 Mounting device for a cable cup |
| 11/30/2005 | CN1702301A System for mine safety monitoring and disaster emergency communication and method for operating the same |
| 11/29/2005 | CA2322064C Adjustable stairway for use with an overcast in a mine |
| 11/10/2005 | US20050247827 Conduit securement clip |
| 11/09/2005 | CN1694544A Under-mine voice communication system, device and method based on sensor network |
| 11/09/2005 | CN1693671A Full automatic coal mine gas prewarning explosion-proof system |
| 11/02/2005 | EP1483480A4 Sheet metal cable hook |
| 10/26/2005 | EP1587749A2 Distributed natural gas storage system(s) using oil and gas and other well(s) |
| 10/26/2005 | EP1436489B1 Closure seals and method for closing underground cavities |
| 10/20/2005 | US20050231377 Instrumented rock bolt, data logger and user interface system |
| 10/18/2005 | US6957166 Method and apparatus for load rate monitoring |
| 10/05/2005 | CN1676881A Sensor network based underground safety monitoring system, apparatus and method |
| 10/05/2005 | CN1676880A Rock salt deposit horizontal chamber type oil-gas depot and its building method |
| 10/04/2005 | CA2257529C Mobile overhead power/communication distribution system |
| 09/22/2005 | US20050205722 Pipe and tube support |
| 09/21/2005 | CN2728106Y Downhole operating workman location tracking system |
| 09/07/2005 | CN2723684Y Mine intelligent patrol instrument with anti-explosion function |
| 09/07/2005 | CN1664312A Apparatus and method for monitoring spontaneous fire of mine |
| 09/01/2005 | DE102004008569A1 Eigensichere Batteriestromversorgung für den untertägigen Bergbau Intrinsically safe battery power supply for underground mining |
| 08/31/2005 | EP1567828A1 Orientation system and method for use in underground mining and tunnel construction |
| 08/25/2005 | US20050186471 Intrinsically-safe battery power supply for underground mining |
| 08/24/2005 | CN1659360A Mounting device for a cable cup |