| Patents for E21D 9 - Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries (7,097) |
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| 06/09/1981 | CA1102827A1 Underground mining machine |
| 06/02/1981 | CA1102361A1 Method of and apparatus for horizontally and vertically guiding a cutter advance mechanism |
| 05/13/1981 | EP0028593A1 Device to preclude physical contact between the cutter boom and the gathering arm of a cutting machine |
| 05/05/1981 | US4265565 Tunnel drive shield |
| 04/29/1981 | EP0027789A1 Conveyor for tunnelling machines |
| 04/28/1981 | US4264051 Laterally adjustable multiple head |
| 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 |
| 04/08/1981 | EP0026439A2 Cutter for a partial-cut driving machine |
| 04/07/1981 | US4260295 Injector |
| 04/07/1981 | US4260194 Method and device for producing underground cavities using a driving shield |
| 04/02/1981 | WO1981000876A1 Conveyor mounted excavator |
| 03/25/1981 | EP0025475A1 A shield-type tunneling machine |
| 03/11/1981 | EP0024445A1 Tunnel driving machine |
| 03/10/1981 | US4254995 Process of and an arrangement for mining |
| 03/05/1981 | WO1981000590A1 A rotary cutterhead for an earth boring machine |
| 02/24/1981 | US4252463 Tunnel driving apparatus |
| 02/11/1981 | EP0023487A1 Rotary cutterhead for an earth boring machine. |
| 02/10/1981 | CA1095562A1 Conveyor-mounted vehicle |
| 02/03/1981 | US4248481 Tunnel driving apparatus with cutter arms internal and external of support tube |
| 01/27/1981 | US4247149 Mechanically actuated impact mechanism |
| 01/07/1981 | EP0021987A1 Machine for driving underground galleries |
| 01/07/1981 | EP0021702A1 Installation of tunnel linings |
| 01/06/1981 | US4243439 Process of quenching metal pieces and product produced |
| 12/23/1980 | US4240665 Conveyor mounted vehicle |
| 12/23/1980 | US4240664 Hydraulic jet cutting tool and method |
| 12/02/1980 | US4236627 Cutting machine |
| 11/18/1980 | US4234235 Rotary cutterhead for an earth boring machine |
| 11/18/1980 | CA1089886A1 Low profile mining machine |
| 11/11/1980 | US4232905 Tunnelling machine |
| 11/04/1980 | US4231618 Tunnel-excavating machine |
| 10/21/1980 | US4229042 Excavating machines |
| 10/21/1980 | US4228890 Particulate material loading equipment |
| 10/14/1980 | CA1087642A1 Continuous boring or cutting machine |
| 10/14/1980 | CA1087640A1 Surface drilling apparatus |
| 10/07/1980 | US4226477 Device for removing the earth generated by tunneling |
| 10/01/1980 | EP0016297A1 Device for controlling the position of a tunnel boring machine |
| 10/01/1980 | EP0016262A1 Process for consolidating and sealing geological and heaped rock and earth formations |
| 09/30/1980 | US4225144 Device for sealing the gap between component parts rotatable relative to each other |
| 09/23/1980 | US4224004 Knife shield |
| 09/16/1980 | US4222681 Shield for constructing tunnels with in-situ formed concrete lining |
| 09/03/1980 | EP0014733A1 Articulated boom-dipper-bucket assembly for a tunnel boring machine |
| 08/26/1980 | CA1084340A1 Plant for blasting of objects such as rock, concrete, and the like |
| 08/20/1980 | EP0014695A1 Cutter head with water nozzles and process for operating this head |
| 08/07/1980 | WO1980001587A1 Rotary cutterhead for an earth boring machine |
| 08/06/1980 | EP0014060A1 Apparatus for controlling the profile of a tunnel or gallery cut by a cutting head, and tunnel cutting machine equipped with such apparatus |
| 08/05/1980 | CA1083186A1 Tunnel excavating machine |
| 07/29/1980 | CA1082748A1 Low profile mining machine |
| 07/29/1980 | CA1082440A1 Process for reinforcing geological formations |
| 07/01/1980 | CA1080756A1 Tunneling machines and other cutting machines |
| 06/24/1980 | US4209268 Tail packing for a slurry pressurized shield |
| 06/12/1980 | WO1980001188A1 Mechanically actuated impact mechanism |
| 06/10/1980 | US4206947 Percussive slot cutter |
| 06/03/1980 | CA1078881A1 Advance method and apparatus for mining |
| 05/27/1980 | CA1078416A1 Swivel mechanism for kerf-cutting machines |
| 05/20/1980 | US4203626 Articulated boom-dipper-bucket assembly for a tunnel boring machine |
| 05/15/1980 | WO1980001003A1 Method and apparatus in tunnelling |
| 05/13/1980 | US4202418 Roller cutter mounts |
| 04/30/1980 | EP0010534A1 Device for cooling the picks of the cutting tools of a cutting machine and the excavation face and for preventing the formation of dust |
| 04/22/1980 | US4199193 Underground mining machine having temporary roof support means and roof bolting means associated therewith |
| 04/08/1980 | US4196656 Method and apparatus for transporting and housing tunnel workers active in high pressure environments |
| 04/01/1980 | US4195885 Method and device for breaking a hard compact material |
| 03/18/1980 | US4193637 Rotary cutterhead for an earth boring machine |
| 03/18/1980 | US4193634 Method and apparatus for excavation |
| 03/11/1980 | US4192556 Tunnel boring machines |
| 03/06/1980 | WO1980000361A1 A method of selective underground mining and stabilization of rock cavities |
| 02/26/1980 | US4190294 Excavator for use in a tunneling shield |
| 02/26/1980 | CA1072587A1 Method and device for breaking a hard compact material |
| 02/20/1980 | EP0008127A1 Process for consolidating coal and/or rock in mines |
| 02/19/1980 | US4189186 Tunneling machine |
| 02/12/1980 | US4188069 Mining machine having walk-on platform on cutter arm |
| 02/06/1980 | EP0007357A1 Device and process for driving galleries with a shield |
| 02/05/1980 | US4186971 Device for cooling cutting teeth of cutter heads of cutting machines |
| 02/05/1980 | CA1071246A1 Gathering head |
| 01/29/1980 | US4185873 Machine for mechanically advancing clean cut underground mining galleries of various profiles |
| 12/11/1979 | US4178111 Apparatus for the excavation of subterranean tunnels |
| 11/29/1979 | WO1979001010A1 Roller cutter mount for an earth boring cutterhead |
| 11/06/1979 | US4173421 Shield apparatus for use in tunnelling or mining |
| 11/06/1979 | US4173373 Advance method and apparatus for mining |
| 10/23/1979 | US4171848 Control method and system for ensuring stable boring operation at working face during tunnelling with tunnel boring or shield machine |
| 10/17/1979 | EP0004832A2 Tunnelling machine and method of tunnelling by means of said machine |
| 10/16/1979 | US4171148 Continuous boring or cutting machine |
| 10/09/1979 | US4170383 Tunneling machines and other cutting machines |
| 10/09/1979 | CA1064060A1 Percussive tool mount |
| 10/02/1979 | US4169629 Tunneling machine with plural adjustable arms carrying single cutter |
| 10/02/1979 | CA1063626A1 Full face miner |
| 09/25/1979 | US4168614 Method for the consolidation of mining deposits |
| 09/11/1979 | US4167290 Shield type hydraulic tunnel boring machine |
| 09/11/1979 | US4167289 Method and system for controlling earth pressure in tunnel boring or shield machine |
| 09/11/1979 | CA1062289A1 Mining and like machinery |
| 09/04/1979 | US4166509 Process for excavating and constructing tunnel and excavating device |
| 09/04/1979 | CA1061812A1 Cutting machine |
| 09/04/1979 | CA1061811A1 Method for cutting minerals and cutting machine |
| 08/28/1979 | US4165874 Golf club shaft and set of golf clubs |
| 08/28/1979 | US4165803 Material gathering device |
| 08/21/1979 | US4165130 Impact tunneling machine with cutters spaced for equal work |
| 08/21/1979 | US4165129 Shield tunneling machine and method |
| 07/26/1979 | WO1979000471A1 Method for blasting rock |
| 07/24/1979 | US4162104 Cutting machine |
| 07/11/1979 | EP0003011A2 Process for the preparation of an injection dispersion |
| 07/03/1979 | US4159819 Tube-driving apparatus |