| Patents for E21F 15 - Methods or devices for placing filling-up materials in underground workings (1,589) |
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| 12/04/2004 | CA2469247A1 A method and means for recovering hydrocarbons from oil sands by underground mining |
| 12/02/2004 | DE10322242A1 Production of a stable suspension or concrete, flow mortar and/or flooring material used in the building industry comprises mixing finely divided fine materials, especially fly ash and/or ground limestone to a water/solid mixture |
| 09/29/2004 | CN1168891C Triphase foam generator for preventing and treating spontaneous coal combustion |
| 09/08/2004 | CN1165667C Method of filling hole by using aggregate |
| 08/18/2004 | CN1521388A Process and equipment for preparing and discharging high concentration and plaster mortar |
| 06/24/2004 | DE10258300A1 Process for stabilizing disused mining shafts filled with filling material comprises introducing a bore from above into the filling material column and inserting a radially expandable packer arrangement into the bore |
| 06/02/2004 | CN1500762A Single plasm glue jointed filling material and using method thereof |
| 04/29/2004 | DE202004002033U1 Cohesive filling material for shafts in ground consists of water, cement and aggregate of given sizes, mixed in given proportions to set hard after pouring |
| 04/29/2004 | DE202004002032U1 Cohesive filling material for pouring into shafts in ground consists of water, cement and building rubble of given sizes, mixed in given proportions |
| 04/15/2004 | US20040070257 Method and system for mining hydrocarbon-containing materials |
| 04/15/2004 | DE19846361B4 Verfahren zum Verfüllen von untertägigen Hohlräumen Method for filling underground cavities |
| 04/08/2004 | DE10325040B3 Downhole layer container for powder-form building material has fluidizing insert in form of woven wire |
| 03/31/2004 | EP1156975B1 Transport of solid particulates |
| 02/26/2004 | DE10336405A1 Synthetic material grid for reinforcing roadway covering, has two portions extending in direction of load bearing strands of one of two groups having large spacing in former portion and small spacing in latter portion |
| 02/24/2004 | US6695543 Method for filling voids with aggregate material |
| 02/19/2004 | US20040033337 Grid of synthetic material |
| 02/19/2004 | DE20314259U1 Material mixture of pumpable consistency for complete filling of underground cavities is additionally provided with a flow enhancing agent based on polycarboxyl ether |
| 11/20/2003 | DE20313672U1 Additive for filling mining shafts contains crushed sand and grate ash |
| 10/01/2003 | CN2577009Y Filling pump |
| 07/17/2003 | DE20121876U1 Underground roadway bunkerage comprises sequence of top cowl and bottom funnel bunker sections plugging together via seals with transport eyelets and swivel hooks all served by sectionalized screw conveyor. |
| 07/17/2003 | DE20121875U1 Underground roadway bunkerage comprises sequence of top cowl and bottom funnel bunker sections plugging together via seals with transport eyelets and swivel hooks all served by sectionalized screw conveyor. |
| 07/01/2003 | US6586497 Incorporating foaming agent in mixture of particulates, then producing foam in mixture prior to transport to increase flowability of solid particulates |
| 06/26/2003 | DE20121846U1 Underground roadway bunkerage comprises sequence of top cowl and bottom funnel bunker sections plugging together via seals with transport eyelets and swivel hooks all served by sectionalized screw conveyor. |
| 06/18/2003 | CN1424275A Cementing materials for filling, slurry and preparing and filling processes |
| 05/14/2003 | CN1417451A Triphase foam generator for preventing and treating spontaneous coal combustion |
| 04/29/2003 | US6554368 Method and system for mining hydrocarbon-containing materials |
| 02/27/2003 | US20030038526 Method and system for mining hydrocarbon-containing materials |
| 12/19/2002 | DE19758679C2 Füllstoff zum Auffüllen von Hohlräumen im Salinar und Verfahren zu seiner Herstellung A filler for filling cavities in salt and process for its preparation |
| 11/12/2002 | CA2260604C Apparatus for producing high density slurry and paste backfills |
| 11/07/2002 | DE10116945C1 Verfahren zur dauerstandssicheren Teilverfüllung von Schächten Process for life was safe part backfilling of pits |
| 10/17/2002 | WO2002081865A1 Method for partially filling shafts in a permanently durable manner |
| 08/06/2002 | US6428107 Mixing cement binder with sand; heating |
| 06/11/2002 | US6402833 Mixture of slag and kiln dust; filing voids |
| 05/08/2002 | DE10114651C1 Consolidation of a geological formation in an underground coal mine by introducing a reaction mixture which forms a polyurethane, uses polyol component containing polyether polyol with solid organic filler formed in situ, and plasticizer |
| 05/08/2002 | CN1348423A Transport of solid particulates |
| 05/02/2002 | DE10144121A1 Underground roadway bunkerage comprises sequence of top cowl and bottom funnel bunker sections plugging together via seals with transport eyelets and swivel hooks all served by sectionalized screw conveyor. |
| 03/14/2002 | US20020030398 Method and system for mining hydrocarbon-containing materials |
| 03/14/2002 | US20020030076 Transport of solid particulates |
| 02/21/2002 | DE10039484A1 Sealing bore-accessed strata cavities mixes fast-setting materials pumped out from a packed-off string to seal cavity downhole. |
| 02/07/2002 | US20020015619 Method for filling voids with aggregate material |
| 01/31/2002 | DE19758682C2 Filler for back filling salt pits |
| 11/28/2001 | EP1156975A1 Transport of solid particulates |
| 11/27/2001 | US6322293 Method for filling voids with aggregate material |
| 11/27/2001 | US6322292 Backfilling underground voids |
| 10/02/2001 | US6297295 Adding a foaming agent to form a mixture; and mixing said mixture to form a foam within the mixture. |
| 09/20/2001 | WO2001069042A1 Method and system for mining hydrocarbon-containing materials |
| 09/07/2001 | WO2001064556A1 Method of transporting slimes |
| 03/22/2001 | DE19944860A1 Method for fitting cohesive section supports into mineshaft comprises first forming temporary support, e.g. of rigid plastic foam, and applying filling material in sections of increasing width |
| 03/14/2001 | CN2423404Y Cement paste stowing machine |
| 12/20/2000 | EP1060854A2 Process for preparing setting and binding materials used in mining , tunneling , for galleries and/or for underground constructions from waste products |
| 12/14/2000 | DE19926444A1 Verfahren zur Herstellung von abbindenden und erhärtenden Massen für den Berg-, den Tunnel- und Stollen- und/oder Tiefbau aus Abfallstoffen Process for the preparation of setting and hardening materials for the mining, tunneling and gallery construction and / or civil engineering from waste materials |
| 11/23/2000 | DE19921363A1 Support unit for use in a shaft or hollow vertical chamber, comprises flexible sleeve and spreading unit which can open the sleeve out |
| 09/27/2000 | CN1056907C Apparatus for movement along underground passage and method using the same |
| 09/08/2000 | WO2000051922A1 Transport of solid particulates |
| 09/08/2000 | CA2382086A1 Transport of solid particulates |
| 08/30/2000 | CN1264784A Method of filling hole by using aggregate |
| 06/21/2000 | EP1010855A2 Method for filling a shaft and the use of additives therefor |
| 06/21/2000 | DE19858133A1 Verfahren zur Schachtverfüllung und Verwendung von Zuschlagstoffen hierfür Method for shaft backfilling and use of aggregates this |
| 06/15/2000 | DE19856640A1 Underground closure element construction material for underground shaft, gallery and borehole closures comprises construction blocks of sand and clay and/or bentonite |
| 05/31/2000 | DE19952306A1 Filling of mine shafts involves use of an expandable bag which in its filled and expanded state engages with the shaft wall and forms a plug for shaft filler material |
| 04/13/2000 | DE19846361A1 Liquid component used for material to fill underground hollow chambers of salt mines contains a carrier solution made of a salt and a waste liquid produced during the manufacture and/or processing of chemical products |
| 03/08/2000 | CN1050170C Underground filling-up material extrusion conveying method and device |
| 12/08/1999 | CN2352676Y Placing filling-up slurry and water-removing apparatus for mine |
| 10/26/1999 | US5971667 Apparatus for movement along an underground passage and method using same |
| 09/08/1999 | CN2337318Y Dewatering device capable of cleaning filter material |
| 03/04/1999 | DE19737584A1 Filler for back filling salt pits |
| 03/04/1999 | DE19737583A1 Filler used as e.g. damming material in underground storage such as salt pits |
| 12/23/1998 | CN1202569A High concentrate paste-filling technology and equipment in mine |
| 11/05/1998 | DE19718688A1 Method of securing ground surrounding disused and filled mine-shaft |
| 11/04/1998 | EP0875664A2 Method for making a hydraulical transportable solid/liquid mixture |
| 10/28/1998 | CA2235117A1 Method for the production of a hydraulically, transportable liquid-solid mixture |
| 09/16/1998 | CN2291505Y Anti-corrosion wire netting |
| 05/27/1998 | CN2282601Y Cement paste filling machine |
| 02/12/1998 | DE19632142A1 Method of using fuel residues in surface or buried chambers |
| 12/24/1997 | CN1168711A Apparatus for movement along an underground passage and method using same |
| 04/02/1997 | CN1146527A Underground filling-up material extrusion conveying technology and apparatus |
| 09/12/1996 | DE19508136A1 Stowing substance for mine working |
| 08/28/1996 | CN1129724A Complete water adhesive and filling process |
| 08/14/1996 | DE19504551A1 System for filling underground caverns or mines with rubble |
| 07/09/1996 | US5533833 Bulk backfill in situ liner for hard rock environment |
| 06/13/1996 | DE4443130A1 Monitoring biological activity of packing and filling materials for disposal in mines |
| 04/18/1996 | WO1996011324A1 Apparatus for movement along an underground passage and method using same |
| 04/18/1996 | DE4436229A1 Filling material for mine shafts and for sealing and compacting building ground |
| 04/11/1996 | DE19502846C1 Method for back filling caverns in underground salt mines |
| 01/11/1996 | DE4424209A1 Use of soil from which e.g. minerals have been extracted for infill |
| 01/11/1996 | DE4421998A1 Packing material for filling mines to prevent subsidence |
| 11/02/1995 | EP0517747B1 Method and system for underground gasification of coal or browncoal |
| 10/05/1995 | DE4410714A1 Support wall for hydraulic packing in underground mines |
| 09/14/1995 | DE4408348A1 Packaging of waste for underground stowage |
| 07/26/1995 | EP0664374A1 Apparatus for disposal of material in a drilling well |
| 05/11/1995 | CA2135354A1 Device for lifting and alignment of nets in rock reinforcement |
| 03/14/1995 | US5396749 Method of cutting off water flow by grouting |
| 03/09/1995 | DE4331641C1 Process for introducing pneumatic packing with the addition of fine-grain fillers, and apparatus for carrying out the process |
| 03/01/1995 | CN2190697Y Double pump double liquid multifunction mixer |
| 12/21/1994 | EP0629655A1 Process for creating dams or process for filling with self-foaming phenolic resins, particularly in mining |
| 11/03/1994 | DE4331237C1 Supply arrangement for rock-consolidation agent with reusable containers |
| 10/13/1994 | DE4311658A1 Method of making roadside packs and/or support pillars in underground mining, preferably coal mining |
| 09/15/1994 | DE4307196A1 Jointing mortar for the construction of cross-sectional seals in salt |
| 07/06/1994 | CN1025357C High-water material cementing fill technology for metal mine |
| 06/01/1994 | DE4314258C1 Device for restitution of underground hollow spaces of mining field - uses solid material - water/mixt. and comprises drag pipe conduits and strut conveyor conduit parallel to conveyor |