| Patents for E21F 13 - Transport specially adapted to underground conditions (2,802) |
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| 11/01/2001 | WO2001081211A1 Scraper chain conveyor for use in underground mining |
| 10/30/2001 | US6308819 Advancing tailpiece |
| 10/25/2001 | DE10020021A1 Chain scraper conveyor for underground mining operations has conveyor chains and drivers consisting at least partially of high strength plastic having self-extinguishing, hardly inflammable and anti-static material properties |
| 10/23/2001 | US6305296 Power pack trolley and captivation system |
| 10/23/2001 | CA2177189C Miniature, portable, self-contained power machine |
| 09/27/2001 | DE10014355A1 Transfer unit for use e.g. in mining has drag chain conveyor fitted beneath continuous cutter, end of conveyor belt being attached to platform mounted on support jack so that it can be swivelled with respect to end of chain conveyor trough |
| 09/26/2001 | CN2450389Y Internal liquid return double action hydraulic push shifter |
| 09/20/2001 | DE10012914A1 Equipment for defined removal of accumulated material in underground mining and tunnel construction recovered by planing or roller loader involves material taken firstly from face |
| 09/05/2001 | CN1311385A Self moving apparatus for remote control bridge elevating conveyor |
| 09/04/2001 | US6283277 Self-propelled, mobile articulated tramming haulage conveyor system for mining operations |
| 08/23/2001 | US20010015573 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 08/22/2001 | CN2444060Y Aachoring device for conveyer of inclined well |
| 07/25/2001 | EP0964979B1 An advancing tailpiece |
| 07/12/2001 | DE10018813A1 Transfer support for connecting strip conveyors to a conveyor belt in tunnelling construction has bearing plate with cross strips at ends and bores to receive a coupling spigot for the discharge head and return cylinder |
| 05/03/2001 | WO2001031168A1 Method and arrangement for preventing the passage of a mining vehicle |
| 05/02/2001 | EP1096106A2 A mechanical arm for connections to an advancing tailpiece |
| 04/24/2001 | US6220670 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 02/20/2001 | US6190276 Chain scraping conveyor-drive shaft for coal mining |
| 02/15/2001 | DE19937355A1 By-pass conveyor for conveyor belt, especially in mines and tunnels, consists of bridge-shaped chain conveyor, bridge sections being box-shaped and fastened together at joints with brackets and bolts |
| 02/07/2001 | CN1283250A Transport apparatus for use in mines |
| 01/16/2001 | US6173618 Ore pass level and blockage locator device |
| 12/12/2000 | CA2037352C Shaft conveyance system |
| 12/06/2000 | EP1056927A1 Surface-assisted continuous underground mining |
| 11/22/2000 | CN2407126Y Replaceable bowling ball |
| 11/08/2000 | CN1058275C Anti-static and flame-resistant composition for plastic idler of coal mine and its mfg. method |
| 09/28/2000 | DE19934628C1 Optimising operating costs of non-stationary conveyor belts involves producing functional relationship using data for variation in belt height profile and electrical energy demand |
| 08/31/2000 | DE19907344A1 Arrangement for ensuring recovery-optimized position of mining coal face conveyor uses sensors fixing movements of selected charges, sending impulses to data converting control apparatus |
| 08/23/2000 | CN1055738C Method for automation of coal mining at declined gallery |
| 07/12/2000 | CN2387268Y Hydraulic self-discharging appts. for coal mine explosion-proof three-wheeled transport vehicle |
| 07/05/2000 | CN2386197Y Control device for intercepting catcher in incline hoist |
| 06/28/2000 | CN2385086Y Full-automatic inclined drifts carriage catching device |
| 06/13/2000 | US6073745 Adjustable yoke assembly |
| 06/07/2000 | CN2381783Y Protector for exceeding speed limit for cars at incline shaft |
| 06/07/2000 | CN1053256C Appts. for underground extraction |
| 04/19/2000 | CN2374644Y Transport tension automatic balancing device for endless rope shuttle vehicle |
| 04/05/2000 | CN2372451Y Rock reloader |
| 04/05/2000 | CN1249798A Advancing tailpiece |
| 03/28/2000 | US6042191 High wall mining system |
| 02/23/2000 | CN2365400Y Manriding car |
| 02/23/2000 | CN2365399Y Antiexplosive transport tricycle for coal mine |
| 02/22/2000 | US6027175 Method and apparatus for highwall mining |
| 02/10/2000 | DE19835541A1 Conveyer belt discharge chute for bulk solids such as coal and iron ore can be adjusted without interruption of conveyer operation |
| 02/08/2000 | CA2075619C Apparatus and method for continuous mining |
| 02/02/2000 | CN2361836Y Free run reciprocating coal feeder |
| 01/26/2000 | CN2360608Y Portable endless rope suspension passenger's hook device |
| 01/12/2000 | CN2358226Y Hoeing machine for coal petrography |
| 12/28/1999 | US6006894 Low vein mobile bridge carrier hydraulic haulage system |
| 12/22/1999 | EP0964979A1 An advancing tailpiece |
| 12/07/1999 | US5997101 Surface-assisted continuous underground mine conveyor |
| 12/07/1999 | US5997100 Inertization system for highwall mining |
| 12/07/1999 | US5996766 Adjustable yoke assembly |
| 11/30/1999 | US5992941 Conveyor for ultra thin seam coal mining |
| 09/22/1999 | CN2339750Y Underground cement transport-storage equipment for mine |
| 08/19/1999 | WO1999041488A1 Surface-assisted continuous underground mining |
| 08/19/1999 | DE19805666A1 Guide unit for cutting machine used in mine |
| 08/18/1999 | CN1044696C Cell changing system for cell power-supplied vehicle |
| 08/17/1999 | US5938289 High wall mining conveyor system |
| 08/04/1999 | CN1224794A Loading and unloading method for transporting material in one-way driving underground tunnel |
| 07/21/1999 | CN2329767Y Ore overflow prevention vibration fast coal feeder |
| 06/16/1999 | CN2324286Y Head and tail device of conveyor |
| 06/16/1999 | CN2324127Y Slusher with quick changable rabble blade |
| 06/02/1999 | CN2321943Y Screw type coal conveyer for underground working face |
| 05/27/1999 | DE19742000C1 Feeder for coal from winning machine |
| 05/20/1999 | WO1999024695A1 Transport apparatus for use in mines |
| 05/19/1999 | CN2319571Y Appts. for elevating underground hard rock ores from shaft |
| 05/12/1999 | DE19749190A1 Chain-driven sub-surface mining conveyer |
| 04/14/1999 | CN2314098Y Improved feeding unit for excavating, loading and scrapping machine |
| 04/07/1999 | CN2313044Y Auxiliary walking vehicle for local coal-mine |
| 04/07/1999 | CN2313043Y Pressure-dividing horizontal mechanical coal bunker |
| 03/31/1999 | CN2312326Y Means for locking rope of base of inclined shaft transporting car |
| 03/04/1999 | DE19737936A1 Underground-mining machine |
| 02/25/1999 | DE19736662A1 Coal face cutter |
| 02/11/1999 | DE19734439A1 Device for advancing conveyor or other special work machine in mining gallery |
| 02/04/1999 | WO1999005052A1 Conveyor for ultra thin seam coal mining |
| 02/03/1999 | CN2306317Y Centrifugal automatic fast cage resisting device |
| 01/06/1999 | CN2303083Y Intelligent inclined shaft transportation vehicle protection device |
| 01/05/1999 | US5855467 Lifting device |
| 12/23/1998 | CN2301537Y Split cast-welded coal conveying shute |
| 12/17/1998 | DE19724381A1 Transfer station for underground mine gallery |
| 12/16/1998 | CN2300726Y 垂直提升输送机 Vertical Lift Conveyor |
| 12/15/1998 | US5848825 Method of conveying coal from a coal cutter in a mine |
| 12/10/1998 | DE19723768A1 Transportation system for conveying personnel and material in mines and tunnels |
| 11/26/1998 | DE19721201A1 Device for underground mineral extraction |
| 11/25/1998 | CN2298344Y Multifunction flexible automatic gear for inclined shaft catcher |
| 11/24/1998 | US5839564 For connecting a bridge conveyor and mobile bridge carrier |
| 10/13/1998 | US5820223 Inertization system for highwall mining |
| 10/08/1998 | WO1998044235A1 Modular ladder assembly for mine raise |
| 10/08/1998 | CA2286911A1 Modular ladder assembly for mine raise |
| 09/11/1998 | WO1998039554A1 An advancing tailpiece |
| 08/26/1998 | CN2288892Y Mine normally closed type incline shaft monitor for preventing sliding down |
| 08/19/1998 | CN2288270Y Resistance changeable resistance device for emergently intercepting mine car |
| 06/24/1998 | CN2284861Y Inclined roadway coal chute |
| 05/20/1998 | CN2282072Y Safety rail conductor for mine |
| 05/07/1998 | DE19718514C1 Operating method for transportation trains in underground mine |
| 04/16/1998 | DE19641764A1 Spillway chute used in mining for strut and underground hauling conveyor |
| 04/16/1998 | DE19641504A1 Support with height-adjustment for conveyor belt |
| 04/08/1998 | CN1178285A Technology for lifting hard rock mineral from underground by vertical shaft |
| 04/01/1998 | CN2277455Y Mine car catching device for use in inclined shaft |
| 03/26/1998 | DE19718515A1 Reducing wear on plastic friction wheels of drive unit of monorail conveyor for underground mine |
| 03/26/1998 | DE19639361A1 Chain band for scraper used in underground mining |