Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21F - Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels › E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere
Patents for E21F 17 - Methods or devices for use in mines or tunnels, not covered elsewhere (4,758)
11/2000
11/23/2000DE19921363A1 Support unit for use in a shaft or hollow vertical chamber, comprises flexible sleeve and spreading unit which can open the sleeve out
10/2000
10/12/2000WO2000060214A1 Method and device for determining a previous state of stress for tunneling
10/12/2000CA2369020A1 Method and device for determining a previous state of stress for tunneling
09/2000
09/21/2000WO2000055431A1 Guide system placed along roadsides, preferably in tunnels, for protecting vehicles
09/21/2000CA2365974A1 Guide system placed along roadsides, preferably in tunnels, for protecting vehicles
08/2000
08/09/2000CN2391016Y Flame-proof type wind power and gas power interlocking vacuum switch for mine use
07/2000
07/26/2000EP1021641A4 Mobile overhead power/communication distribution system
07/26/2000EP1021641A1 Mobile overhead power/communication distribution system
07/15/2000CA2258880A1 Compressed air conservation kit
07/04/2000US6082828 Mine gallery curtain and method
06/2000
06/07/2000EP0723623A4 Horizontal natural gas storage caverns and methods for producing same
05/2000
05/31/2000DE19852455A1 Verankerungseinrichtung mit seismischem Sensor Anchoring device with seismic sensor
05/17/2000EP1001134A1 Anchoring device with a seismic sensor
05/02/2000US6056638 Mine ventilation wall construction
04/2000
04/25/2000US6055042 Method and apparatus for detecting obstacles using multiple sensors for range selective detection
04/25/2000US6053457 Telecommunication cabling suspension system for ceiling and plenum areas
04/06/2000WO2000019063A1 Apparatus for closing off an underground passage
03/2000
03/30/2000DE4201580C2 Verwendung eines verfüllten isolierten Grubenraumes als Wärmespeicher Use of a backfilled pit insulated space as heat storage
03/22/2000CN2370160Y Sampler for harmful gas monitoring in coal mine and recording and analylizing device
03/15/2000CN1247587A Method and equipment for ventilating underground workings
03/14/2000CA2155799C Non-ozone depleting malodorous composition of matter and warning system
03/07/2000US6032986 Door system for a mine stopping
12/1999
12/09/1999WO1999062794A1 Installation for storing of natural gas
12/07/1999US5997101 Surface-assisted continuous underground mine conveyor
11/1999
11/18/1999DE19914973A1 Process for determination of the earlier forces acting on an area or mountain or earth prior to boring of a tunnel or similar
11/09/1999US5979837 Mobile overhead power/communication distribution system
11/04/1999WO1999056258A1 Intrinsically-safe roof hazard alert module
11/04/1999WO1999056003A1 Method and apparatus for load rate monitoring
11/04/1999WO1999056002A1 Cable line stopping
11/04/1999CA2329313A1 Intrinsically-safe roof hazard alert module
11/03/1999CN1233706A Automated guided apparatus suitable for toping applications
10/1999
10/27/1999EP0952427A2 Automated guided apparatus
09/1999
09/30/1999DE19826120A1 Flammhemmendes, elektrisch leitendes Gewebe Flame retardant, electrically conductive fabric
09/28/1999US5957539 Process for excavating a cavity in a thin salt layer
09/28/1999US5957416 Wire and cable support system
09/22/1999EP0943710A2 Flame retardant electrically conductive cloth
09/16/1999WO1999046479A1 Temporary ventilation system for mining or tunnelling
08/1999
08/19/1999WO1999041488A1 Surface-assisted continuous underground mining
08/19/1999WO1999041164A1 Method in operating a cavern for gas
08/18/1999EP0935701A1 Method and equipment for ventilating underground workings
08/11/1999EP0934994A1 Non-flammable, sticky ,flexible product especially for the consolidation of grounds
08/10/1999US5934990 Mine stopping
08/03/1999US5931606 Stabilizer length coding system
07/1999
07/28/1999CN2330787Y Pit head low-voltage power supply installation for mine
07/20/1999US5924655 For supporting conduit
07/13/1999US5921509 Apparatus for suspending conduit
07/06/1999US5920602 Underground storage facility, and associated method of storing waste
06/1999
06/29/1999US5915885 Method for vertical displacement of masses underneath the earth's surface
06/17/1999WO1999030004A1 Remote monitoring safety system
06/17/1999DE19858129A1 Detecting obstruction in path of heavy goods vehicle, e.g. earth-moving tipper
05/1999
05/20/1999WO1999024695A1 Transport apparatus for use in mines
05/12/1999CN2318401Y Movable centralized control room for comprehensive face
05/06/1999DE19747978A1 Clamp for carrying heavy loads
04/1999
04/21/1999CN2315298Y Fastening dog for down-hole cable
04/14/1999CN1213878A Combined switch with explosion-proof structure
03/1999
03/31/1999EP0904618A2 Switching device such as a contactor and method for the preparation of said switching device
03/18/1999DE19737226A1 Clamp for fixing support profiles in drifting
03/18/1999DE19737225A1 New design of hook head bolt
03/17/1999CN1211014A Method for recording/reproduction by recording/reproducing system for visual inspection device
03/04/1999DE19816798A1 Constructional clamp
02/1999
02/18/1999DE19734668A1 Claw cross member for load support
02/18/1999DE19734651A1 Load bearing cross member
02/03/1999CN2306318Y Pitshaft hanging cable reverse-coiling device
02/03/1999CN1206779A Method for removing mine pass blocking material
01/1999
01/21/1999WO1999002814A1 Self-contained underground drill rig
01/05/1999CA2023784C Method for the removal of aqueous liquids from the sump of an underground cavity
12/1998
12/24/1998DE19725681A1 Water-emulsified hydraulic oil purification unit operating in subterranean workings
12/15/1998US5848770 For supporting conduit
12/08/1998US5845882 Staple hook pipe hanger
11/1998
11/25/1998CN2298345Y Quick closed gasbag for mine on fire region
11/05/1998DE19718688A1 Method of securing ground surrounding disused and filled mine-shaft
11/05/1998DE19642778A1 Disused mine sites and plant used for power plant
11/04/1998EP0875663A1 Roof bolt with a visual length indicator
10/1998
10/22/1998WO1998046859A1 Device for sealing an opening
10/20/1998US5824912 Method of determining stresses in a model mine layout
09/1998
09/22/1998US5810134 Underground energy-supply train
09/11/1998WO1998039555A1 A method for providing gas-sealing around a rock chamber or rock storage chamber
09/09/1998EP0777816B1 Energy supply train for underground mining
09/08/1998US5803172 Mine shaft and adit closure apparatus and method
09/01/1998US5799907 Pipe straps
08/1998
08/18/1998US5796348 Overload protection device
08/11/1998CA2139611C Roadbed profiler
07/1998
07/23/1998WO1998031920A1 A construction assembly and method of construction for use in a mine
07/21/1998US5782440 Telecommunication cabling suspension system for ceiling and plenum areas
07/14/1998US5779198 For a cable or hose
07/02/1998WO1998028829A1 Switching device such as a contactor and method for the preparation of said switching device
06/1998
06/10/1998CN2283735Y Blasting vehicle ladder for treating pass blocked
06/09/1998CA2110638C Expansion foam borehole plug and method
05/1998
05/27/1998EP0843877A1 Underground storage facility, and associated method of storing waste
05/07/1998WO1998019046A1 Method and equipment for ventilating underground workings
05/07/1998WO1998019045A1 Method and equipment for ventilating underground workings
05/07/1998CA2269975A1 Method and equipment for ventilating underground workings
04/1998
04/28/1998US5743678 Anchor eye-bolt for mine roof
04/23/1998DE19643417A1 Arrangement for holding circuit breakers in compact stations in mines and tunnels
04/22/1998EP0837218A2 Method for supplying power to measure and/or control devices of drilling machines and a drilling machine
03/1998
03/18/1998EP0829699A2 Method and system for measuring three-dimensional displacement
03/10/1998US5725327 Permanent mine bulkhead seal and method for constructing same
03/04/1998CN2275642Y 可燃性气体监测报警器 Combustible gas monitor alarm
01/1998
01/21/1998EP0819834A1 Method for making a cavity in a thin-walled salt mine
01/19/1998CA2210866A1 Process for excavating a cavity in a thin salt layer
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