| 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) |
|---|
| 07/06/1982 | US4337980 Wedge arrangements and related means for mounting means, base members, and bits, and combinations thereof, for mining, road working, or earth moving machinery |
| 06/29/1982 | CA1126766A1 Arrangement for cooling the cutter teeth of the cutting tool of a rock-cutting machine and for cooling the breast |
| 06/22/1982 | US4335921 Cutting head for a paved roadway resurfacing apparatus |
| 06/15/1982 | CA1125797A1 Arrangement for controlled engagement of the tools of a mining machine with a mine face |
| 06/08/1982 | US4333687 Holder for the attachment of cutters to mining and tunnelling machines |
| 06/08/1982 | CA1125318A1 Methods and apparatus for removing moisture from air |
| 06/02/1982 | EP0052978A2 A cutting tool |
| 06/02/1982 | EP0052977A2 A pick and holder assembly and a pick and a holder for such an assembly |
| 06/01/1982 | CA1124754A1 Hollow cutting head |
| 05/27/1982 | WO1982001739A1 Cowl-like scrubber for a long-wall shearer |
| 05/25/1982 | CA1124270A1 Mining cutter bit holder and mounting assemblies |
| 05/18/1982 | US4329766 Tool for installing scarifier teeth |
| 05/11/1982 | US4328994 Mining apparatus and method |
| 05/04/1982 | US4327947 Keeper spring for connecting mining tool to work tool holder |
| 05/04/1982 | US4327946 Apparatus for controlling the position of a mineral mining machine |
| 04/27/1982 | CA1122622A1 Cutter tool bit |
| 04/20/1982 | CA1122234A1 Tools for mineral winning machines |
| 04/06/1982 | US4323282 Conveying trough with mining machine cutter guide surfaces |
| 04/06/1982 | US4323280 Remote controlled high wall coal mining system |
| 04/06/1982 | CA1121155A1 Hammer for breaking strong abrasive materials |
| 03/30/1982 | US4322113 Excavating machines for excavating rock and minerals having first and second alternative modes of control |
| 02/23/1982 | US4316636 Excavation and road maintenance bits and blocks |
| 02/16/1982 | US4315658 Mining equipment |
| 02/10/1982 | EP0045736A1 Apparatus for separating dust particles from an air current |
| 01/26/1982 | US4312540 Continuous mining apparatus and method |
| 01/12/1982 | US4310197 Mining and bolting method and apparatus |
| 12/15/1981 | US4305473 Power control device for pneumatic motors |
| 12/01/1981 | USRE30807 Point-attack bit |
| 12/01/1981 | US4303276 Conveyor chute for chain scraper conveyors |
| 11/25/1981 | EP0040334A2 Water nozzle with self-cleaning means |
| 11/24/1981 | US4302055 Wedgingly mounted tool holder or adapter for a cutting head |
| 11/24/1981 | US4302053 Mounting block to rotate coal cutter bits |
| 11/17/1981 | CA1112636A1 Drill machine guidance using natural occurring radiation |
| 11/10/1981 | US4299424 Cutting tool assembly |
| 11/03/1981 | US4298233 Milling tool for a rotating milling cylinder |
| 11/03/1981 | CA1111868A1 Method of and an arrangement for longwall mining |
| 10/27/1981 | CA1111455A1 Mining equipment |
| 09/22/1981 | US4290653 Coal mining machine cutter with noise suppressant and flame resistant layer |
| 09/22/1981 | US4290648 Mining apparatus |
| 09/22/1981 | CA1109500A1 Device for sealing the gap between component parts rotatable relative to each other |
| 09/22/1981 | CA1109495A1 Method of controlling the working motion of a cutting tool of a tunnel-driving machine over the breast, and apparatus for carrying out the method |
| 09/15/1981 | US4289509 Dust aspirating arrangement |
| 09/15/1981 | US4289357 Hollow cutting head |
| 09/08/1981 | US4288125 Mining apparatus having an improved coupling assembly |
| 09/08/1981 | US4287692 Safety apparatus for a mining machine |
| 09/01/1981 | US4286823 Conveyor and guide assembly |
| 09/01/1981 | US4286822 Underspoil slurry haulage |
| 08/25/1981 | US4285549 Assembly for cooling the teeth of the cutting head and the rock face |
| 08/18/1981 | CA1107225A1 Scraper chain conveyor assembly |
| 08/04/1981 | US4281879 Stabilizing assembly for a mining machine |
| 08/04/1981 | US4281876 Televised remote control system of a continuous mining machine |
| 08/04/1981 | US4281759 Conveyors |
| 08/04/1981 | CA1106414A1 Assembly for cooling the teeth of the cutting head and the rock face |
| 07/28/1981 | US4280735 Non-rotary mining cutter with recessed nozzle insert |
| 07/28/1981 | US4280734 Arrangement for controlled engagement of the tools of a mining machine with a mine face |
| 07/28/1981 | US4280572 Chisel for a percussive tool |
| 07/21/1981 | US4279445 Longwall mining installation having stable-hole plough |
| 07/21/1981 | US4279443 Mining apparatus |
| 07/14/1981 | US4278294 Guide-rail assembly for longwall mining apparatus |
| 07/07/1981 | US4277106 Self renewing working tip mining pick |
| 07/07/1981 | US4277105 Conveyor system for a continuous mining machine |
| 06/30/1981 | US4275929 Means for removably affixing a cutter bit mounting lug to a base member on the driven element of a mining machine or the like |
| 06/23/1981 | US4274678 Socketed boss having means for retaining a tool shank |
| 06/23/1981 | US4274677 Mineral cutter pick arrangement |
| 06/16/1981 | US4273385 Device for safety guiding of hauling chain especially at ranging drum shearer in coal mining |
| 06/16/1981 | CA1103282A1 Device for safety guiding of hauling chain especially at ranging drum shearer in coal mining |
| 06/09/1981 | US4272130 Mineral mining installation |
| 06/09/1981 | US4272129 Mineral mining installation |
| 06/09/1981 | US4271735 Tool holders |
| 06/02/1981 | US4270800 Pre-start warning device for a machine |
| 05/26/1981 | US4269448 Mineral mining machine cutter driving mechanism having a load sensing device to regulate the haulage speed of the machine when the cutter driving mechanism is overloaded |
| 05/26/1981 | US4269304 Scraper chain conveyor assembly |
| 05/20/1981 | EP0028930A1 Continuous excavating apparatus |
| 05/19/1981 | US4268089 Mounting means for pick on mining drum vane |
| 05/19/1981 | CA1101449A1 Continuous miner with improved roof-to-floor anchoring canopy units for advancing and turning machine and installing roof bolts |
| 05/13/1981 | EP0028593A1 Device to preclude physical contact between the cutter boom and the gathering arm of a cutting machine |
| 05/05/1981 | US4265488 Track on a conveyor for a mining machine |
| 04/29/1981 | EP0027789A1 Conveyor for tunnelling machines |
| 04/28/1981 | US4264106 Auger mining machine |
| 04/21/1981 | US4262964 System for detecting interfaces between mineral seams and the surrounding earth formations |
| 04/14/1981 | US4261620 Tapered lock pin for a cutter tool bit |
| 04/14/1981 | US4261619 Cutter picks |
| 04/14/1981 | US4261617 Method of controlling the working motion of a cutting tool of a tunnel-driving machine over the breast, and apparatus for carrying out the method |
| 04/14/1981 | CA1099302A1 Mineral cutter pick arrangement |
| 03/31/1981 | CA1098551A1 Bit arrangement for a cutting tool |
| 03/24/1981 | CA1098137A1 Socketed boss having means for retaining a tool shank |
| 03/18/1981 | EP0025421A2 A tool mounting and a cutter drum for earth excavating machines |
| 03/17/1981 | US4256345 Scraper chain conveyor with rack for the chainless feed of winning machines |
| 03/17/1981 | CA1097701A1 Gauging apparatus and method, particularly for controlling mining by a mining machine |
| 02/24/1981 | US4252475 Vehicle mounted temporary roof support |
| 02/17/1981 | US4251113 Hammer for breaking strong abrasive materials |
| 02/17/1981 | US4251110 Mineral mining installation |
| 02/17/1981 | US4251109 Dust controlling method using a coal cutter bit |
| 02/17/1981 | US4251108 Method of and an arrangement for longwall mining |
| 02/17/1981 | US4251090 Safety ski binding |
| 02/17/1981 | CA1095939A1 Remote control system for mining machines |
| 02/10/1981 | US4249778 Methods and apparatus for removing moisture from air |
| 02/10/1981 | CA1095542A1 Apparatus for cutting hard earth formations |
| 02/03/1981 | US4248136 Thrust device using hydraulic jacks |
| 01/27/1981 | US4247226 Hydraulic conduit systems for mine installations |