Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629)
03/2014
03/18/2014US8672581 Road construction machine, as well as method for controlling the distance of a road construction machine moved on a ground surface
03/18/2014US8672417 Rock sampling apparatus
03/12/2014CN203476333U Novel mining and extracting machine
03/12/2014CN203476332U Crawler type coal mining machine
03/12/2014CN203476323U Cutting mechanism of hobbing-type continuous mining machine
03/12/2014CN103628873A Double-drum cutting part of coal cutter
03/12/2014CN103628872A Folding-arm type tunneling machine capable of monitoring intelligently and automatically regulating rotate speed of cutting head
03/12/2014CN102206997B 掘进机 Boring Machine
03/05/2014CN203463108U Coal sawing machine for automatically longitudinally cutting coal bed into lump coal
03/05/2014CN103615247A Mining machine capable of compound rotary cutting
03/05/2014CN103615246A Combined drilling unit
03/05/2014CN103615245A Mining machine capable of compound rotary cutting
03/05/2014CN103615244A Cantilever excavator capable of controlling posture of cutting head
03/05/2014CN102644461B Double-motor U-shaped cutting portion of thin seam mining machine
03/05/2014CN102359373B Drum shearer cutting part
03/04/2014US8661640 Extraction system for a mineral cutter pick
02/2014
02/26/2014CN203452789U Split type shovel plate of continuous coal mining machine
02/26/2014CN103603662A Coal cutter for thin coal layer
02/26/2014CN102562057B Construction method for cutting solution fissure of salt ore
02/26/2014CN102505941B Tunneling machine
02/25/2014US8657384 Track scraper
02/20/2014US20140049093 Self-Propelled Building Machine And Method For Operating A Building Machine
02/20/2014DE102012107485A1 Mobile Bergbaumaschine sowie Verfahren zum Auffahren von Tunneln, Strecken oder Schächten, insbesondere in Hartgestein Mobile Mining Equipment and methods for boring tunnels, tracks or wells, especially in hard rock
02/20/2014DE102012107484A1 Mobile mining machine for excavation of tunnel, tracks/shafts in hard rock, has tilting equipment tilting extension arm device, and scissors moved independent of each other, and loading desk together with loading devices raised and lowered
02/19/2014CN203441488U Cutting device of longitudinal axis type roadheader
02/19/2014CN103590838A Heading and loading machine for drilling and digging
02/19/2014CN103590829A Four-roller coal cutter adopting double-roller cutting parts
02/12/2014CN203430527U Shield type continuous tunneling and anchoring machine
02/12/2014CN203430521U Mining multifunctional milling and drilling machine
02/12/2014CN203430508U Coal mining machine
02/12/2014CN103573265A Method for strengthening impact device by heightening and/or widening impact guide pieces and impact device for increasing strengthened impact strength by implementing method
02/11/2014US8646847 Manhole remover
02/06/2014US20140035346 Milling drum having integral tool mounting blocks
02/06/2014US20140035343 Self-Propelled Construction Machine
02/05/2014CN103556996A Full-rock roadway longitudinal shaft type heading machine
02/05/2014CN103556995A Cantilever excavator
01/2014
01/30/2014US20140028078 Hyper-Pressure Pulse Excavator
01/30/2014US20140028077 Track driven slab saw
01/29/2014CN203412588U Drilling and excavating backhoe loader
01/29/2014CN101922290B Coal-rock interface identification method, identification system and identification probe
01/28/2014US8636324 Mining machine with driven disc cutters
01/22/2014CN103527189A High-pressure water drilling and cutting integrated machine
01/22/2014CN103527188A Alternating current dual roller traction coal cutter
01/15/2014CN203394528U Rocker arm of coal mining machine
01/15/2014CN203394526U Drum of coal mining machine
01/15/2014CN103510953A Step-tooth excavating method of reciprocating impact excavators, and step-tooth reciprocating impact excavator used for realizing step-tooth excavating method
01/15/2014CN102606154B Coal roadway tunneling machine with double round cutter heads
01/15/2014CN102606153B Fully sealed coal roadway tunneling and anchoring synchronous machine
01/15/2014CN102606152B Novel quick digging and anchoring integrated machine for rectangular coal roadway
01/15/2014CN102536227B Rotary-digging type coal mining machine and development machine cutting part
01/15/2014CN102364048B Comprehensive mechanized rock roadway tunneling machine
01/14/2014US8628147 Continuous miner center drum with offset split surfaces
01/09/2014WO2014005396A1 Hydraulic system and excavator
01/09/2014US20140008962 Dust Scrubber
01/08/2014CN103498674A Composite rotary-cut mining machine
01/08/2014CN103498672A Crushing-loading-conveying integrated coal mining machine and coal mining method thereof
01/08/2014CN103498671A Mining machine with rocker arm provided with coal-passing space
01/08/2014CN102337888B Large-gradient development machine
01/01/2014CN203374280U Hydraulic scraper type rock loading machine with guide arm
01/01/2014CN203374279U Rocker arm of coal mining machine with extension-type slotting mechanism
01/01/2014CN103485781A Adjustable coal shoveling plate applied to cutting part of coal mining machine
01/01/2014CN103485776A Multifunctional vibrating mechanism of coal mining machine
01/01/2014CN103485775A Novel continuous coal miner
12/2013
12/25/2013CN203362160U Drum coal mining machine rocker arm device
12/25/2013CN103470265A Self-propelled coal sawing machine for longitudinally cutting coal bed into block coal and cutting method for cutting coal bed by using machine
12/25/2013CN103470254A Locking device of coal mining machine roller and mounting structure thereof
12/25/2013CN102305066B Coal mining machine and cutting roller device
12/25/2013CN102095067B Mining machine and lubricating device thereof
12/18/2013CN103452562A Mining multifunctional milling and drilling machine
12/18/2013CN102383793B Dual function machine for drilling and loading in tunnel
12/11/2013CN203335072U Multifunctional comprehensive hydraulic drill loader
12/11/2013CN101387201B Conveyor pan with improved edge shaping
12/04/2013CN203321516U Mining machine and cutting drum rotating mechanism
12/04/2013CN103422854A longwall mining machine and a linepan section
11/2013
11/28/2013US20130313887 Linepan and longwall mining machine
11/20/2013CN203296773U Long-wall coal mining machine
11/20/2013CN102410016B Rectangular full-section continuous miner
11/19/2013CA2666435C A method and system for cuttings disposal on a cuttings pad
11/13/2013CN203285436U Coal cutter rocker arm with high block coal rate
11/13/2013CN103388474A High-efficiency non-clamping impact-blanking digging method and high-efficiency non-clamping impact-blanking digger
11/13/2013CN102562066B Method for mechanically mining coal by using steep seam pseudo inclination bracing type retractable flexible shield support
11/13/2013CN102213094B Construction system and construction method for mine rock drivage
11/06/2013CN203271742U New-type shipping heading machine
11/06/2013CN203271738U Lump coal mining machine
11/06/2013CN203271737U Coalcutter cutting head at high-speed end of planetary reducer
11/06/2013CN103382839A Method for maintaining vertical impact of impact mechanism and vertical lift punch-cutting mining machine implementing method
11/06/2013CN102392640B Close-range thin coal layer simultaneous mining and parallel transporting method
11/06/2013CN102287185B High-power heavy low seam mining machine
11/06/2013CN102268991B Power speed change heading machine
11/06/2013CN102121382B Composite rotary cutting mining machine
11/05/2013US8573885 Road surface planar
10/2013
10/30/2013CN203257411U Grooving equipment
10/29/2013US8567872 Grinder bit
10/23/2013CN203248152U Spiral drum of coal winning machine
10/23/2013CN203248151U Split-type combined coal winning machine rocking arm
10/23/2013CN102278111B Development machine and star wheel driving device thereof
10/16/2013CN203239344U Coal mine roadway digging device
10/16/2013CN203239343U Cutter chain of coal cutting machine
10/16/2013CN203239342U Knife holder assembly for chain-type coal cutting machine
10/16/2013CN102052080B Mechanical drive dual-disc development device for development machine
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