E21C 25/16

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9951615 Stabilization system for a mining machineMay 05, 17Apr 24, 18Joy MM Delaware, Inc.
9670776 Stabilization system for a mining machineFeb 24, 15Jun 06, 17JOY MM DELAWARE, INC.
9394654 Track driven slab sawJul 26, 13Jul 19, 16Not available
9353622 Mining machine with driven disc cuttersMay 19, 14May 31, 16JOY MM DELAWARE, INC.
9022484 Material handling system for mining machineAug 03, 12May 05, 15JOY MM DELAWARE, INC.
8985705 Low-profile mechanical connection for a drive arrangementMar 15, 13Mar 24, 15JOY MM DELAWARE, INC.
8979209 Stabilization system for a mining machineAug 03, 12Mar 17, 15JOY MM DELAWARE, INC.
8820846 Automated pre-tramming operation of a mining machineAug 03, 12Sep 02, 14JOY MM DELAWARE, INC.
8807659 Automated cutting operation of a mining machineAug 03, 12Aug 19, 14JOY MM DELAWARE, INC.
8807660 Automated stop and shutdown operation of a mining machineAug 03, 12Aug 19, 14JOY MM DELAWARE, INC.
8690262 Heading machine having cutting unit made of disc toolsJan 16, 09Apr 08, 14SANDVIK MINING AND CONSTRUCTION G.M.B.H.
8328292 Mining machine with driven disc cuttersMar 22, 11Dec 11, 12JOY MM DELAWARE, INC.
7431402 Rock boring deviceDec 06, 06Oct 07, 08Odyssey Technology Pty Ltd
7325882 Rock cutting machineApr 22, 03Feb 05, 08Odyssey Technology Pty Ltd
7182407 Rock boring device with an oscillating and nutating rotary disc cutterJan 20, 00Feb 27, 07Odyssey Technology Pty Ltd
6612655 Mining system and method featuring a bread loaf shaped boreholeFeb 22, 01Sep 02, 03AMVEST CORPORATION
6561590 Cutting device with rotating discAug 03, 01May 13, 03Odyssey Technology Pty Ltd
5690391 Self propelled sawMay 31, 96Nov 25, 97HUSQVARNA U.S. HOLDING, INC.
5378049 Rotary cutter for extracting hard rockAug 23, 93Jan 03, 95KRUPP FORDERTECHNIK GMBH
5340199 Method and machine for excavating drifts, tunnels, stopes, caverns or the likeNov 06, 92Aug 23, 94AKER WIRTH GMBH, Wirth Maschinen-und Bohrgerate-Fabrik GmbH,

Showing 1 to 20 of 30 results