| 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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| 07/03/1979 | CA1057735A1 Rock boring cutter with thread-on replaceable cutting element |
| 06/26/1979 | US4159055 Gathering head |
| 05/22/1979 | US4155668 Sealing means for the drive members of drive shields |
| 05/16/1979 | EP0001816A1 Hardening material and method for its preparation |
| 05/01/1979 | US4152027 Shield type hydraulic tunnel boring machine |
| 04/17/1979 | CA1052829A1 Cutting machine |
| 04/10/1979 | US4148592 Shield apparatus for use in tunnelling |
| 04/05/1979 | WO1979000159A1 Device and process for driving galleries with a shield |
| 04/03/1979 | US4147453 Method of, and apparatus for, driving and lining tunnels |
| 04/03/1979 | US4147452 Method for constructing a rectangularly shaped tunnel |
| 04/03/1979 | US4147391 Swivel mechanism for kerf-cutting machines |
| 04/03/1979 | CA1051932A1 Tunnel boring machines |
| 03/27/1979 | US4146347 Method and apparatus for lateral excavation |
| 03/20/1979 | US4144801 Method and apparatus for transporting and housing tunnel workers active in high pressure environments |
| 03/13/1979 | US4143919 Mining machinery with guideway for relatively movable cutting units |
| 03/13/1979 | US4143519 Drive shield |
| 03/06/1979 | US4142763 Attitude control means of tunnel boring machine shield |
| 03/06/1979 | CA1050054A1 Cutting machine |
| 03/06/1979 | CA1050053A1 Dividing cutting machine |
| 02/27/1979 | CA1049274A1 Method of advancing a plurality of longitudinally arranged movable constructional units forwardly successively in a self-running manner and apparatus for performing same |
| 02/20/1979 | US4140345 Tunnel-excavating machine with shield formed of segments |
| 02/20/1979 | US4139989 Seals for tunnelling shields |
| 02/20/1979 | CA1048801A1 Continuous roof support system for tunnel boring |
| 02/13/1979 | US4139320 Process for excavating and constructing tunnel and excavating device |
| 02/06/1979 | CA1047834A1 Directed-thrust blasting process |
| 01/30/1979 | US4136910 Excavating machines |
| 01/30/1979 | CA1047481A1 Apparatus and method for emplacing a conduit along an underground arcuate path |
| 01/30/1979 | CA1047264A1 Omnidirectional drilling system |
| 01/23/1979 | US4135450 Method of underground mining |
| 01/23/1979 | CA1047053A1 Device for guying a movable cutting machine |
| 01/16/1979 | US4134620 Channelling machine for cutting a preliminary groove around the working face of a tunnel |
| 01/16/1979 | CA1046294A1 Method and apparatus for lateral excavation |
| 01/09/1979 | US4133582 Low profile mining machine |
| 01/09/1979 | CA1045989A1 Hydraulic system for rock breaker |
| 12/19/1978 | CA1044692A1 Land erosion protection on a rock cutter |
| 12/19/1978 | CA1044473A1 Method for placement of production casing under obstacle |
| 10/31/1978 | US4123109 Mining method |
| 10/31/1978 | US4122683 Tunnel drive shield |
| 10/17/1978 | US4120390 Crossover dump and conveyor advancer |
| 10/17/1978 | US4120165 Methods of and apparatus for driving tunnels |
| 10/10/1978 | US4118938 Apparatus for and method of driving tunnels |
| 10/03/1978 | CA1039759A1 Method and a machine for advancing an underground face of a geological formation |
| 09/26/1978 | US4116487 Device for removing gravels and the like from discharged mud in hydraulic tunnel boring system |
| 09/26/1978 | US4116011 Method of excavating tunnels |
| 09/12/1978 | US4113316 Funneling machine with inclined advancing rams |
| 09/12/1978 | US4113123 Vehicle or carriage mounted materials transporting machine |
| 09/12/1978 | US4113014 Polyurethanes |
| 09/12/1978 | US4112696 Drive shield |
| 09/05/1978 | US4111488 Method for cutting minerals and cutting machine |
| 09/05/1978 | US4111486 Method and system for performing attitude control of tunnel excavating shield |
| 09/05/1978 | US4110992 Brush-type packing means for shield excavator |
| 09/05/1978 | CA1037725A1 Drive shield for tunnelling apparatus |
| 08/29/1978 | CA1037462A1 Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner |
| 08/22/1978 | US4108494 Cutting machine |
| 08/15/1978 | US4106297 Method of and an arrangement for establishing an underground passage |
| 08/01/1978 | US4104592 Remote control of a mobile underground machine, particularly in a mine |
| 07/18/1978 | US4101173 Roof prop and platform movably mounted on boom of tunnelling machine |
| 07/11/1978 | US4099388 Drive shield for tunneling apparatus and a method for operating such a shield |
| 07/04/1978 | US4098539 Cutting machine |
| 07/04/1978 | US4098538 Earth working machine having independent tools and roof engaging bridge |
| 06/27/1978 | US4096640 Method and apparatus for thermal treatment of or for matter-exchange with pourable material |
| 06/20/1978 | US4095436 Method of, and apparatus for, controlling the advance of a tunnel drive shield |
| 06/20/1978 | US4095435 Method of advancing a plurality of longitudinally arranged movable constructional units forwardly successively in a self-running manner and apparatus for performing same |
| 06/13/1978 | US4094152 Apparatus for laying a pipe line |
| 05/30/1978 | US4091630 Intermediate sleeve for installing pipeline by propelling pipes underground |
| 05/09/1978 | US4088368 Method for explosive breaking of hard compact material |
| 05/02/1978 | US4087132 Device for guying a movable cutting machine |
| 04/25/1978 | US4086309 Method for sealing cracks and cavities in different kinds of building constructions, such as building constructions in rock, concrete, brickwork and timber |
| 04/18/1978 | US4084386 Apparatus for and a method of tunnelling |
| 04/18/1978 | US4084384 Advanced slot stress control method of underground excavation |
| 04/04/1978 | US4082248 Pipe driving apparatus |
| 03/21/1978 | US4080000 Tunnelling machine |
| 03/21/1978 | US4079890 Device for building up high pulse liquid pressures |
| 03/21/1978 | US4079795 Method and a device for drilling with several tools in simultaneous operation |
| 03/07/1978 | US4077670 Method and apparatus for advancing and supporting an underground mine gallery |
| 02/28/1978 | US4076317 Device for guying a movable cutting machine |
| 02/14/1978 | US4073153 Drive shields for tunnelling |
| 02/07/1978 | US4072021 Method of driving and forming a tunnel with hydraulic boring machine |
| 01/31/1978 | US4070948 Pneumatic impact devices |
| 01/31/1978 | US4070772 Ground excavating apparatus |
| 01/24/1978 | US4070063 Dividing cutting machine |
| 01/24/1978 | US4069760 Method for driving a shaft with shaped charges |
| 01/17/1978 | US4068486 Automatic tunnel face hydraulic pressure controlling apparatus in shield type hydraulic tunnel boring system |
| 01/17/1978 | US4068485 Apparatus for driving tunnels or the like |
| 01/17/1978 | US4068484 Automatic tunnel face hydraulic pressure controlling apparatus in shield type hydraulic tunnel boring system |
| 12/20/1977 | US4063510 Process for detecting a misfired explosive |
| 12/20/1977 | US4063425 Tunnel driving apparatus |
| 12/06/1977 | US4061398 Hydraulic mining apparatus and method |
| 12/06/1977 | US4060992 Method of and apparatus for laying a pipe-line |
| 11/29/1977 | US4059965 Apparatus for and a method of laying a pipe line |
| 11/15/1977 | US4057971 Brush-type packing means for shield excavator |
| 11/08/1977 | US4057260 Device for connecting the bits with the cutting head of a drift advancing machine or the like |
| 11/01/1977 | US4056284 Machines for use in mining or tunnelling work |
| 11/01/1977 | US4056189 Material gathering device for a mining machine |
| 11/01/1977 | US4055959 Apparatus for use in mining or tunnelling installations |
| 10/11/1977 | US4052859 Method and apparatus of completing slurry shield tunneling at vertical shaft |
| 10/11/1977 | US4052850 Thrust generator |
| 10/04/1977 | US4052107 Hydraulic hammers hydraulically driven impactor |
| 09/20/1977 | US4049318 Mining machine with cam-operated water jet pump |
| 09/20/1977 | US4049317 Tunnel driving apparatus |