| Patents for E21C 35 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or (6,127) |
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| 07/25/2013 | DE202013103122U1 Sprühdüseneinheit Spray nozzle |
| 07/24/2013 | CN203081451U Mining wet type air curtain dust collector |
| 07/24/2013 | CN203081450U Scrapping plate conveyor with hydraulic pillar |
| 07/24/2013 | CN203081449U Scraper loader with steel rope lubricating device |
| 07/24/2013 | CN203081448U Crawler loader and material conveying and loading device thereof |
| 07/24/2013 | CN203081447U Crawler loader and rear axle swinging system thereof |
| 07/24/2013 | CN203081446U Raking and crushing and cleaning loader |
| 07/24/2013 | CN203081445U Polycrystalline diamond rotary digging machine cutting pick |
| 07/24/2013 | CN203081444U Protection device for elevator bucket shovel mooring rope |
| 07/24/2013 | CN203081443U Large-screen color display electric cabinet of heading machine |
| 07/24/2013 | CN203081441U Manual-remote integrated vehicle-mounted device of master-slave control-type underground remote control scraper |
| 07/24/2013 | CN103221637A Device for cooling chisels |
| 07/24/2013 | CN103216233A Method for identifying coal petrography interface of thin coal layer and automatically heightening expansion cylinder |
| 07/24/2013 | CN103216232A Method for automatically regulating and controlling transportation load of high-gas coal face |
| 07/24/2013 | CN103216231A 采掘机 Mining machine |
| 07/24/2013 | CN103216230A Hydraulic track rock loader |
| 07/24/2013 | CN103216229A Follow-up device of coal mine fully-mechanized coal winning machine belt support |
| 07/24/2013 | CN103216228A Handlebar structure of coal cutter |
| 07/24/2013 | CN103216225A Heading machine cutting head and heading machine |
| 07/24/2013 | CN101970796B Method for automatically creating a defined face opening in plow operations in coal mining |
| 07/24/2013 | CA2803313A1 A system and method for monitoring mining machine efficiency |
| 07/18/2013 | WO2013104023A1 Mining machine and hopper assembly for a mining machine |
| 07/18/2013 | US20130181501 Pick with Threaded Shank |
| 07/18/2013 | DE112011102843T5 Mineralflözerkennung für den Tagebau Mineralflözerkennung for opencast mining |
| 07/18/2013 | DE102008008954B4 Hülse für austauschbares Schneidwerkzeug Sleeve for replaceable cutting tool |
| 07/18/2013 | CA2802343A1 A system and method for vibration monitoring of a mining machine |
| 07/17/2013 | CN203067609U Braking device of coal cutter |
| 07/17/2013 | CN203066979U GPRS (General Packet Radio Service) remote technology-based monitoring device for maintenance of coal mining machine |
| 07/17/2013 | CN203066978U Mine quarrying string bead wire saw control system |
| 07/17/2013 | CN203066977U Dust collection device of small underground coal mining machine |
| 07/17/2013 | CN203066976U Water valve of coal cutter with flow pressure control |
| 07/17/2013 | CN203066975U Water valve for coal cutter |
| 07/17/2013 | CN203066974U Loading slot base plate reinforcement device of scraper bucket rock loading machine for coal mine |
| 07/17/2013 | CN203066973U Material feeding device of scraper bucket rock loading machine for coal mine |
| 07/17/2013 | CN203066972U Supporting device for scraper bucket rock loading machine for coal mine |
| 07/17/2013 | CN203066971U Stress buffering device of scraper bucket rock loading machine for coal mine |
| 07/17/2013 | CN203066970U Coal cutting tooth using micro-plasma arc surface cladding method |
| 07/17/2013 | CN203066969U Novel cutting pick for rotary drilling rig |
| 07/17/2013 | CN203066968U Heading machine with infrared human body detecting device |
| 07/17/2013 | CN203066967U Cable protecting plate for coal mining machine |
| 07/17/2013 | CN203066966U Functional integration operating platform for excavator |
| 07/17/2013 | CN203066965U Protective device for electric bell of fully-mechanized excavator |
| 07/17/2013 | CN203066964U Front-end transmission case of drill-type coal mining machine |
| 07/17/2013 | CN203063580U Roller device of scow rock-loading machine for coal mine |
| 07/17/2013 | CN103206214A Continuous milling machine and traveling and loading control system |
| 07/17/2013 | CN103206213A Method for retaining vertical impact of impacting mechanism and vertical-lift impact-cutting digger implementing same |
| 07/17/2013 | CN101802645B Subsurface positioning system and method for monitoring movement underground |
| 07/16/2013 | US8485609 Impact tool |
| 07/13/2013 | CA2802248A1 Foldable chisel |
| 07/11/2013 | US20130175848 Cutting tool holding device |
| 07/11/2013 | DE112011103169T5 Führungssystem für eine Bergbaumaschine Management system for a mining machine |
| 07/10/2013 | EP2612984A2 Cutting tool holding device |
| 07/10/2013 | CN203052151U Automatic concentration lubricating device of coal cutter |
| 07/10/2013 | CN203051721U Cooling structure of rocker arm gear box of coal cutter |
| 07/10/2013 | CN203050725U Gliding type four-iron-wheel driving crawler loader |
| 07/10/2013 | CN203050715U Remote control system of mining and digging device for mine |
| 07/10/2013 | CN203050714U Conveying and dust-removing device of outdoor continuous miner |
| 07/10/2013 | CN203050713U Spraying device of coal cutter |
| 07/10/2013 | CN203050712U Guardrail device of underground conveyor |
| 07/10/2013 | CN203050711U Scraper bucket for scraper bucket mucking machine |
| 07/10/2013 | CN203050710U Ceramic cutting pick |
| 07/10/2013 | CN203050709U High-strength wearable guide boots |
| 07/10/2013 | CN203050708U Mining multifunctional tunnelling machine |
| 07/10/2013 | CN203050707U Safe rotary type anti-falling protective plate device for coal mining machine |
| 07/10/2013 | CN203050706U Gear sleeve |
| 07/10/2013 | CN203050705U Centralized oil injection device for low seam mining machinery |
| 07/10/2013 | CN203050704U Quick insertion type coal mining machine cable holding frame fixing structure |
| 07/10/2013 | CN203050703U Low seam mining machinery body flexible connection device adapted to bottom plate undulation |
| 07/10/2013 | CN203050691U Bidirectional material impacting device |
| 07/10/2013 | CN203050690U Vertical lifting and cutting mining machine |
| 07/10/2013 | CN103201456A Grading pick with extended fins |
| 07/10/2013 | CN103199490A Gas power-off device used for coal mining machine of model MXG-500 in coal mine |
| 07/10/2013 | CN103195424A Heading machine and auxiliary travelling mechanism thereof |
| 07/10/2013 | CN103195423A Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
| 07/10/2013 | CN103195422A Water-spray punching shovel coal cutter |
| 07/10/2013 | CN103195420A Method for buffering reciprocating impact tunneling counter-acting force and buffering heading machine adopting the method |
| 07/09/2013 | CA2722699C Bit holder and base part for receiving a bit holder |
| 07/09/2013 | CA2470626C Method and system for rock drilling equipment function parameter settings |
| 07/04/2013 | WO2013059612A3 Tooth assembly for excavating apparatus with rare earth material |
| 07/04/2013 | US20130169023 Bit Sleeve with Compression Band Retainers |
| 07/04/2013 | US20130169022 Radial and conical tools with compression band retainer |
| 07/04/2013 | DE112011102562T5 Metallmatrixpicke Metal matrix picks |
| 07/03/2013 | EP2609290A2 Bonding of a super-hard wear part to a tool component |
| 07/03/2013 | CN203035255U Double-skip inclined shaft bottom ore loading device |
| 07/03/2013 | CN203035202U Far-pressing-near-absorption dedusting system of fully mechanized excavation face |
| 07/03/2013 | CN203035201U Auxiliary propulsion mechanism of loader |
| 07/03/2013 | CN203035200U Pickax cutting tooth precision forging piece |
| 07/03/2013 | CN203035197U Crawler type double-shaft coal excavating machine |
| 07/03/2013 | CN102191935B Water vapor rotating jet dust settling device for comprehensive driving working face |
| 07/03/2013 | CN102155220B Anti-explosion and anti-falling device for hydraulic pipe of coal-winning machine or roadheader |
| 07/02/2013 | US8474918 Method and device for monitoring a cutting extraction machine |
| 07/01/2013 | DE202012101169U1 Gewinnungshobel Mining plow |
| 06/27/2013 | WO2012156884A3 Mining installation for extracting seam-type or mass-deposit mineral materials, and mining machine for the same |
| 06/26/2013 | CN203022801U Coal roadway three-dimensional dust prevention and dust settling device |
| 06/26/2013 | CN203022742U Onboard dust absorption and collection device for dust catcher for mines |
| 06/26/2013 | CN203022741U Spray cooling system of coal mining machine |
| 06/26/2013 | CN203022739U Coal cutting machine for steeply-inclined coal layer, scraper conveyor and hydraulic bracket |
| 06/26/2013 | CN103180549A Reduced volume cutting tip and cutting bit incorporating same |
| 06/26/2013 | CN103174449A Coal rock recognition method using coal rock recognition processor |
| 06/26/2013 | CN103174423A Device and method for monitoring and identifying coal rock for coal cutter in real time |