| 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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| 08/20/1992 | WO1992014035A2 Auxiliary cutter for a mining machine with coaxial cutting drums |
| 08/20/1992 | DE4105054A1 Segment erector for support lining in mine - is fitted inside pressure chamber or shield driving machine and comprises Jack and rotary runner moving along rails |
| 08/18/1992 | US5139097 Rock drilling apparatus |
| 08/12/1992 | EP0498786A2 Method for limiting subsidence during the excavation of underground cavities |
| 08/12/1992 | EP0498627A2 Improvements in or relating to seals |
| 08/12/1992 | EP0497802A1 Method for the mounting of underground pipelines. |
| 08/05/1992 | EP0497454A2 Rectangular shield excavating machine |
| 08/05/1992 | CN1063335A Rectangular shield excavating machine |
| 08/04/1992 | US5135326 Articulated shield tunneling machine |
| 07/30/1992 | DE4102165A1 Blocks for canalisation of amphibious creatures at migration culvert - has simple components or prefab. unit for flush fitting at culvert entrance to provide road side canalisation for migrating amphibians |
| 07/30/1992 | DE4102121A1 Tunnel construction with reinforced concrete liners - progresses by means of shield driving excavator whose shield is in two sections, with inner shell |
| 07/21/1992 | CA1305331C Method and apparatus for building pipeline and shield tunnelling machine |
| 07/15/1992 | EP0494197A1 Control method and control equipment for drilling apparatus. |
| 07/15/1992 | EP0494196A1 Tunnel drilling apparatus and method to remove drill waste. |
| 07/14/1992 | US5129764 Device to feed reinforcement rods |
| 07/14/1992 | US5129760 Forming a passageway through the ground |
| 07/14/1992 | US5129470 Drill hole filling method and apparatus |
| 07/08/1992 | EP0493597A1 Device for fixing disk cutter to tunnel excavator |
| 07/08/1992 | EP0493459A1 Drilling apparatus and method for its control |
| 07/07/1992 | US5127711 Hopper and hood combination for tunneling machine and tunneling machine having the same |
| 07/02/1992 | DE4114459C1 Mine roadway floor lowering machine - has loosening tool with several blades rotating about vertical axis |
| 06/30/1992 | US5125768 Method and apparatus for the production of underground pipelines |
| 06/30/1992 | US5125719 Tunnel boring machine and method |
| 06/25/1992 | WO1992010646A1 Equipment for lowering the floors of galleries, etc., in underground mines, etc. |
| 06/25/1992 | DE4141911A1 Tunnel-excavating shield driving machine - has face cutting tools consisting of drum cutters on swinging arms which also move radially |
| 06/24/1992 | CN2108173U Waterproof slab hanging bogie for tunnel |
| 06/23/1992 | US5123708 Shield tunnelling machine |
| 06/23/1992 | US5123520 Apparatus for gathering and removing particulate material |
| 06/17/1992 | EP0490847A1 Tunnel boring machine |
| 06/17/1992 | DE4039964A1 Vorrichtung zum senken von strecken o. dgl. in untertaegigen grubenbetrieben o. dgl. Apparatus for reducing stretch of o. The like. Untertaegigen in mine operated o. The like. |
| 06/14/1992 | CA2056763A1 Tunnel boring machine |
| 06/13/1992 | WO1992010647A1 Tunnelling machine |
| 06/13/1992 | CA2098310A1 Tunneling machine |
| 06/04/1992 | DE4037620A1 Section cutting machine for mining roadways - has telescopic supports on either side synchronised with track movement which thrust against rock face |
| 06/02/1992 | US5118220 Method of building underground cavern and tunneling machine |
| 05/26/1992 | US5116164 Device to load reinforcement rods |
| 05/19/1992 | US5113969 Displaceable working platform with extensible boom |
| 05/13/1992 | CN1061071A Method of supporting the smectite bearing soft rock tunnel |
| 05/06/1992 | EP0483445A1 Driving shield |
| 05/06/1992 | CN1060887A Method and system for controlling travelling body so as to move forward along predetermined route of movement of travelling body |
| 05/05/1992 | US5110188 Deformed shield tunneling method and tunneling machine |
| 04/30/1992 | DE4034177A1 Control system for shield driving in tunnel - consists of borehole drilled in direction of drive through which cable is drawn |
| 04/30/1992 | DE4034068A1 Short front machine for seam excavation - includes rise and dip working boom and conveyor to remove all risings |
| 04/29/1992 | EP0482405A1 Method for secondary construction of an underground sealing-base under a consisting dump |
| 04/28/1992 | US5107938 Apparatus for detecting position of underground excavator |
| 04/22/1992 | EP0481077A1 Device for measuring position of underground excavator |
| 04/21/1992 | US5106163 Method and apparatus for inspecting a forward end portion in a tunneling machine |
| 04/14/1992 | US5104262 Tunnel boring machine |
| 04/14/1992 | US5104261 Tunnel boring machine |
| 04/14/1992 | US5104260 Method and apparatus for tunnelling |
| 04/14/1992 | US5103705 Eccentrically arranged radial boring tool apparatus |
| 04/09/1992 | DE4103544C1 Deep mining heading-winning machine - has tracked propulsion system and slewing and ranging boom |
| 04/08/1992 | EP0478798A1 System for controlling direction of underground excavator |
| 04/08/1992 | CN1016206B Method for boring hole in gound and apparatus therefor |
| 04/07/1992 | US5102201 Shield tunnelling machine |
| 04/02/1992 | WO1992005339A1 A mining machine with roof bolting attachment, and roof bolting attachment therefor |
| 04/01/1992 | CN1059954A Mining machine |
| 03/31/1992 | CA1298089C Pipe propelling apparatus |
| 03/19/1992 | DE4029400A1 Driving long opening with non-circular cross=section - involves obliquely angled revolving cutting head which is driven forward along horizontal plane |
| 03/18/1992 | EP0475309A1 Process and device for reconstructing sewers |
| 03/12/1992 | DE4028755A1 Loading and conveying machinery - removes muck from face in tunnel excavation and comprises loader and conveyor unit operating inside shield at ground level |
| 03/11/1992 | CN1015814B Direction correcting device for shield tunnelling machine |
| 03/11/1992 | CN1015813B Shield type tunnel machine |
| 03/05/1992 | DE4126426A1 Reset moment free roller or disc drill head - has motor and drill on common mounting in direct drive contact |
| 02/27/1992 | DE4026528A1 Method of securing rock face - involves insertion of concrete wedge and subsequent filling by sections with concrete plugs on either side |
| 02/27/1992 | DE4026368A1 Method of successive excavation of tunnel - involves cladding face of new excavation and supporting face with gap between them |
| 02/26/1992 | EP0472396A1 Optical tool placement device |
| 02/26/1992 | EP0471859A1 Method and system for detecting collapse of natural ground in shield driving method |
| 02/26/1992 | EP0471858A1 System for detecting the position of an underground excavator |
| 02/25/1992 | US5090844 Plant for digging and shoring up the walls of tunnels during excavation |
| 02/25/1992 | US5090325 Tunnel driving method |
| 02/23/1992 | CA2049638A1 Optical tool placement device |
| 02/12/1992 | EP0470309A1 Method and apparatus for controlling the attitude of a shield excavator |
| 02/12/1992 | EP0470253A1 Earth pressure system shield process |
| 02/06/1992 | DE4024829A1 Shield drive machine for tunnel boring - cuts earth- or fluid-supported work surfaces with cutting wheel mounted on flanged drive shaft |
| 02/06/1992 | DE4024819A1 Tunnel boring shield drive - has cutting wheel fitted in shield, arms fitted with cutting tools and work surface supported by cutting wheel |
| 01/29/1992 | CN2094617U Horizontal circular hole digging machine |
| 01/23/1992 | WO1992001140A1 System for supporting drive of excavating type underground digging machine |
| 01/22/1992 | CN1015317B Mining machine |
| 01/16/1992 | DE4021302A1 Cutting and loading machine - has load sensing on conveyor with control of cutting speed to prevent overloading |
| 01/15/1992 | EP0466348A1 A method and system for controlling a travelling body so as to move forward along a predetermined route |
| 01/15/1992 | EP0465685A1 Drilling head of a horizontal drilling machine |
| 01/15/1992 | EP0465667A1 Method of and apparatus for laying pipes |
| 01/14/1992 | CA2046848A1 Method and system for controlling a travelling body so as to move forward along the predetermined route of the movement of travelling body |
| 01/09/1992 | DE4019912A1 Driving shield for tunnel or roadway construction - gives protection for placing of rings and hydraulically rams them into position |
| 01/08/1992 | EP0465431A1 Composite platform with a self-centering movable intermediate element for manufacturing road underpasses having monolithic structure |
| 01/08/1992 | EP0464363A2 Method and device for the controlling of a driving shield |
| 01/08/1992 | CN1057697A Device for drilling holes in ground |
| 01/07/1992 | US5078545 Method for boring hole in the ground and apparatus therefor |
| 12/27/1991 | EP0462151A1 Aqueous resin preparations for consolidating rock and filling cavities and process therefor. |
| 12/18/1991 | CN1015121B Mining machine |
| 12/17/1991 | US5072994 Shearing machine with movable shearing drum and conveyor |
| 12/17/1991 | US5072992 Shield unit |
| 12/17/1991 | US5072826 Having a drive sprocket at one end of the conveyor |
| 12/12/1991 | WO1991019074A1 Drill head with nozzles |
| 12/12/1991 | DE4117575A1 Building channels, galleries, etc. underground - involves vertical work-shaft, with drilling equipment parallel to longitudinal axis of channel, etc. to be formed |
| 12/12/1991 | CA2064010A1 Drill head with nozzles |
| 12/05/1991 | DE4016759A1 Hydraulic hammer-scoop combination - fits on excavator arm, and involves support connected to tool rotary axis |
| 11/28/1991 | WO1991018235A1 Pipe bursting and replacement apparatus and method |
| 11/28/1991 | DE4016965A1 Drilling head for tunnel boring - has central channel with nozzles directed to front and rear |