Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 35 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or
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)
08/2010
08/11/2010CN201546725U Multi-tooth head cutting pick for mining machine
08/11/2010CN201546724U Bit with regular frustum-shaped tooth head
08/11/2010CN201546723U Improved structure of sleeve
08/11/2010CN201546722U Wear-resisting structure for telescopic outer barrel of development machine
08/11/2010CN101802645A Subsurface positioning system and method for monitoring movement underground
08/11/2010CN101798925A Cutting head type shortwall coal-winning machine and comprehensive mechanized coal mining technology
08/05/2010US20100194177 Shank chisel
08/05/2010US20100194176 Radial tool with superhard cutting surface
08/05/2010US20100194175 Method and device for monitoring a cutting extraction machine
08/05/2010DE102005051450B4 Rundschaftmeißel und Meißelhalter Round shank chisel and bit holders
08/04/2010CN201538564U Hydraulic chain tightener gearbox
08/04/2010CN201538266U Belt-type bunker car
08/04/2010CN101793148A Mining machine and walking frame thereof
07/2010
07/29/2010WO2010084427A1 Plough for underground extraction and guide elements therefor
07/29/2010US20100187896 Cold-formed cutting tool
07/28/2010CN201535166U 自动截割的掘进机 Automatic cutting of roadheader
07/28/2010CN201535165U Wet type negative pressure dedusting device for continuous coal cutting machine
07/28/2010CN201535164U 具有内增强韧结构的锥形截齿 Cone having an inner reinforcing structure of the cutting bit tough
07/28/2010CN201535163U 超轻型支架与刮板机连接器 Ultralight scraper bracket and connector
07/28/2010CN101790621A Cutting tip and tool
07/28/2010CN101787887A Pick having bimetal structure and preparation method thereof
07/28/2010CN101089365B Pick cutting assembly for excavating machinery
07/22/2010WO2010083015A1 Radial tool with superhard cutting surface
07/22/2010DE10085344B4 Armierter Detektor Reinforced detector
07/22/2010CA2749003A1 Radial tool with superhard cutting surface
07/21/2010CN201531270U Water spray surrounded dust collector of excavating machine
07/21/2010CN201531269U Novel tapered cutting pick with umbrella-shaped structure
07/21/2010CN201531268U Development machine capable of comprehensive coil production operation
07/21/2010CN101781987A Tunneling and supporting machine
07/21/2010CN101221430B Cutting track and section shaping control system of development machine
07/14/2010CN201526320U Connecting rod sliding block compensation device of continuous miner
07/14/2010CN201526270U Multifunctional jumbo loader
07/14/2010CN101778998A Method and device for monitoring a cutting extraction machine
07/08/2010WO2010075947A1 Method for adjusting an automatic level control of the plane in planing operations in hard coal mining
07/07/2010CN201521302U Vertical-horizontal swinging scraper chain of continuous miner
06/2010
06/30/2010CN101761337A Air curtain sealing dedusting system on fully-mechanized excavating face
06/29/2010US7744164 Shield of a degradation assembly
06/23/2010CN201513178U Continuous loading operation line of half coal rock laneway in thin coal layer and coal rock loading machine thereof
06/23/2010CN201513177U Roadway rock scrabbling machine
06/23/2010CN1550638B System composed of hydraulic assembly and actuator and/or sensor
06/23/2010CN101749528A Built-in forced lubricating system of rocker arm of coal mining machine
06/17/2010US20100148567 Temporary power equipment transport system for moving mining equipment and method of use
06/16/2010CN201506610U Articulated hinge type coal baffle plate
06/16/2010CN201505381U Hot-water extinguisher
06/16/2010CN1637230B Tool carrier for planer tool of coal picking machine
06/16/2010CN101737048A Remote control monitoring coal mining method
06/16/2010CN101737046A Scraper type cantilever conveyer
06/16/2010CN101737045A Composite bucket tooth with high wear-resistance head
06/16/2010CN101737044A High-abrasion resistance cutting teeth of coal-winning machine and production process thereof
06/12/2010CA2686897A1 Ground engaging tool retention system
06/10/2010US20100141016 Cutting tool for breaking or excavating machines
06/09/2010CN201502400U Cantilever-type second conveyor comprehensive digging machine
06/09/2010CN201502377U Connecting device of transmission framework and bolster frame of scraper conveyor
06/09/2010CN201502376U Windowed middle groove of scraper conveyor
06/09/2010CN201502374U Shipping mechanism of tunneling machine
06/09/2010CN101285383B Automatic liquid feeder for excavate machine extravasation
06/02/2010CN201496094U Underground dust-proof automatic control device
06/02/2010CN201496069U Bridge type transfer machine with large span
06/02/2010CN201496068U Special composite cutting pick for roadheader
06/02/2010CN101718387A Strong grease injector for mining machinery
06/02/2010CN101245705B Diamond compound cutter bit head manufacturing method
06/01/2010CA2466714C Milling tooth and milling tooth holder for a comminution machine
05/2010
05/27/2010DE102008045825B3 Meißelhalter für eine Schrämmaschine, Straßenfräse, Suface-Miner oder dergleichen Chisel holder for a cutting machine, planer, its Surface Miner or the like
05/26/2010EP2189753A2 Assembly stand for mineral cutting head
05/26/2010CN201486592U Tunneler belt-type conveying device
05/26/2010CN201486591U Self-aligning and compensating device of second conveyor rotary table for tunneler
05/26/2010CN201486559U Rake type rock loader
05/26/2010CN201486558U Tunneler width-variable shovel plate
05/26/2010CN201486557U Tunneler shovel plate surface protection device
05/26/2010CN201486556U Relocation and boosting device and tunneling machine employing the same
05/26/2010CN201486555U Tunneler hanging-type transfer conveyor
05/26/2010CN201486551U Tunneler hydraulic winch device
05/26/2010CN1641186B Coal digging machine for underground mining
05/25/2010US7722127 Pick shank in axial tension
05/20/2010DE102007009711B4 Rundschaftmeißel Round shank chisel
05/19/2010CN201474696U Cutting head of cantilever type development machine
05/19/2010CN201474695U Tunneller inner-spraying system
05/19/2010CN201474694U Conical cutting pick with reinforcing hoop structure
05/19/2010CN201474693U Hammer drill pawl
05/19/2010CN201474692U Cutting mechanism of cantilever type development machine
05/19/2010CN201473003U Curtain type cable trough for scrapping plate conveyor
05/19/2010CN101709643A Longitudinal and transverse-swinging scraping plate chain of continuous coal mining machine
05/19/2010CN101709642A Track-type four-arm rock drilling jumbo
05/19/2010CN101109282B Tunneling machine
05/18/2010US7717523 Rotary cutting pick
05/14/2010WO2010051593A1 Mounting for a replaceable tool
05/14/2010CA2742849A1 Mounting for a replaceable tool
05/13/2010US20100117439 Device for determining the cutting horizon of a mining extraction system, and pan element therefor
05/12/2010DE202010001744U1 Sprühdüseneinheit Spray nozzle
05/12/2010CN201461960U Pressure compensation device for rotary seal of high pressure water
05/12/2010CN201460973U All-in-one machine for loading and drilling
05/12/2010CN201460957U Coal cutting machine dust source intelligent tracing spraying and dust removal system for mine
05/12/2010CN201460898U Anti-wear laser repair pick
05/12/2010CN201460897U Benan type abrasion-proof pickax type cutting tooth
05/12/2010CN201460896U Composite bit of mining machine
05/12/2010CN201460895U Spray device externally connected to rocker arm of roller coal excavator
05/12/2010CN201460893U Scraping plate of scraper bucket rock loading machine
05/12/2010CN201460888U Vertical-axis coal-mining machine
05/12/2010CN201460886U coal mining machine
05/12/2010CN201460884U Steeply sloping seam coal mining machine
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