Patents
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)
12/1996
12/10/1996US5582468 Double tooth cutter
12/10/1996US5582466 Advance/retreat cutting miner with simple conveyor
11/1996
11/12/1996US5573308 Cutting element and holder for a coal cutting machine
11/06/1996EP0547053B1 Rotatable cutting tool
11/06/1996CN1135248A Water supply system for mining machine
10/1996
10/31/1996WO1996033600A2 Apparatus and method for continuous mining
10/24/1996DE19512349C1 Werkzeug Tool
10/17/1996DE19513672A1 Chiselling device esp. for coal plane
10/10/1996WO1996031682A1 Pick holder extraction
10/10/1996WO1996031681A1 Tool for releasing a key on a cutter
10/10/1996CA2217500A1 Pick holder extraction
10/08/1996CA2090218C Rotatable cutting tool
09/1996
09/26/1996DE19611455A1 Coal mining machine chisel retainer set
09/10/1996US5553925 Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus
09/06/1996WO1996027072A1 Method of cutting and cutting rotative bit
09/03/1996US5551760 Tungsten carbide insert for a cutting tool
08/1996
08/25/1996CA2169614A1 Method and device for aligning a drill aggregate
08/22/1996WO1996025586A1 Chisel holder
08/22/1996WO1996025585A1 Instrument for breaking up solid material
08/22/1996DE19505143A1 Meißelhalter Toolholder
08/22/1996DE19504779A1 Process for extraction of raw material in seams, esp. coal
08/21/1996CN2233458Y Scraper chain side-delivering coal loader
08/15/1996WO1996024753A1 Continuous control system for a mining or tunnelling machine
08/14/1996CN1128836A Continuous conveyor system
08/08/1996WO1996013968A3 Cutting insert for a cutting tool
07/1996
07/30/1996US5541006 Carbides with tungsten and cobalt or cobalt alloys with binders in a powder blend, sintering to form monolithic component
07/04/1996WO1996020057A1 Composite cermet articles and method of making
07/04/1996WO1996020056A1 Composite cermet articles and method of making
06/1996
06/27/1996WO1996019639A1 Automatic control of a machine used for excavating drifts, tunnels, stopes, caverns or the like
06/25/1996US5529384 Bit holder block and cutter bit therefor
06/20/1996CA2138461A1 Automatic control of a machine used for excavating drifts, tunnels, stopes, caverns or the like
05/1996
05/28/1996US5520488 Tool bit and tool bit chuck for manually operated tool
05/28/1996US5520444 Method of cutting and cutting rotative bit
05/22/1996CN1123046A Improvements in coal and rock picks
05/21/1996US5518299 Dust control apparatus for longwall mining machinery
05/21/1996CA2018913C Miner cutting bit holding apparatus
05/17/1996WO1996013968A2 Cutting insert for a cutting tool
05/15/1996DE19537448A1 Water nozzle supply installation for mine walling machines
05/09/1996DE4439856A1 Device for absorbing dust in water
05/09/1996DE4439601A1 Direction control for underground cutting machine
05/07/1996US5513902 Driving system for driving flexible elongate members, such as chains or scraper-chain assemblies, in mineral mining installations and method of operating
04/1996
04/17/1996EP0706606A1 Cutting element for a coal cutting machine
04/16/1996US5507565 Method and apparatus for suppressing dust and frictional ignition on a continuous mining machine
04/11/1996DE4435842A1 Longwall face machine for underground mining
04/02/1996US5503463 Retainer scheme for cutting tool
03/1996
03/21/1996WO1996008638A1 Improvements in mounting picks in pick holders
03/21/1996WO1996008599A1 Improvements in mounting pick holders in cutter heads of mining machines
03/19/1996US5500649 Method and apparatus for monitoring the thickness of a coal rib during rib formation
03/19/1996CA2015132C Tool for cutting solid material
03/12/1996US5498069 Bit holder with a detachably fixed bit bushing
03/12/1996US5497843 Hollow auger head assembly
03/07/1996DE4431701A1 Cutter mounting for coal extraction machine
02/1996
02/21/1996EP0697060A1 Improvements in coal and rock picks
02/07/1996EP0695602A1 Hydraulically operated hammer with spraying arrangement for dust retention
02/07/1996EP0695393A1 Extraction undercut for flanged bits
01/1996
01/31/1996CN1115994A Extraction undercut for flanged bits
01/16/1996US5484191 Insert for tungsten carbide tool
01/11/1996DE4423925A1 Drive and guide section for mining equipment esp. rotary trench cutters
12/1995
12/20/1995EP0687803A1 Cutter picks for mineral cutting
12/20/1995CN1113539A Sword shaped planner
12/07/1995WO1995028550A3 Rotatable cutting bit and bit holder
12/05/1995US5471771 Method and apparatus for cooling chain type diggers
11/1995
11/23/1995DE4417454A1 Outrigger control for setting up cutting horizon of underground mining machine
11/23/1995DE4416250C1 Halter für einen Gewinnungsmeißel Holder for a recovery chisel
11/23/1995DE4415824C1 Damage and wear warning sensor for cutters on a tunnelling machine
11/16/1995WO1995030820A1 Retainer for a winning a tool
11/16/1995DE4416643A1 Coal-extracting machinery control system
11/15/1995CN1111551A Tool and tool clamp used hand tool apparatus
11/09/1995WO1995030067A1 A highwall mining system with mining and removal of coal (or ore)
10/1995
10/26/1995WO1995028550A2 Rotatable cutting bit and bit holder
10/19/1995WO1995027840A1 Improvements in securing clips for coal and rock picks
10/12/1995DE4412002A1 Narrow frontage machine for suspended mining of inclined coal seams
10/10/1995US5456522 Concave cutter bit
09/1995
09/27/1995EP0673468A1 Cutting tool having hard tip with lobes
09/21/1995WO1995025218A1 Dry dust removal device
09/14/1995DE4407845A1 Guide baseplate for sword planer
09/13/1995EP0519041B1 Apparatus and method for continuous mining
08/1995
08/15/1995CA2047829C Dragline rotating frame structure
08/08/1995US5438860 Cutter bit abrasive detecting device of shield machine
08/02/1995EP0665088A1 Tool and check for hand tool
07/1995
07/20/1995DE4400710A1 Cutting horizon adjuster for underground extraction plough
07/13/1995WO1995018914A1 Pick holder and fixing sleeve for an extraction machine
07/12/1995CN1029330C Apparatus and method for continuous mining
06/1995
06/22/1995WO1995016530A1 Polycrystalline diamond composite cutting insert for attachment to a tool
06/22/1995DE4343493A1 Nozzle system for longwall mining cutter
06/14/1995EP0656989A1 Cutting element for a coal cutting machine
06/08/1995DE4340859A1 Cutting horizon adjuster for underground mining plough
06/01/1995WO1995014846A1 Water supply system for a mining machine
05/1995
05/31/1995CN1028662C Cutter bit
05/23/1995US5417475 Tool comprised of a holder body and a hard insert and method of using same
05/16/1995US5415462 Rotatable cutting bit and bit holder
05/04/1995CA2134396A1 Diamond/boron nitride coated excavating tool cutting insert
05/03/1995EP0651133A2 Diamond/boron nitride coated excavating tool cutting insert
04/1995
04/18/1995US5407253 Water spray ventilator system for continuous mining machines
03/1995
03/15/1995CN1027915C Guide of mining planing machine
03/09/1995DE4329563A1 Device for adjusting the cutting horizon of an underground winning machine, especially a plane
02/1995
02/28/1995US5392870 Mineral cutter tooling system
02/22/1995EP0639437A1 Drag bit for road milling machines
02/01/1995EP0454729B1 Trenching tool assembly with dual indexing capability
01/1995
01/19/1995WO1995002113A1 Cutting element for a coal cutting machine
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