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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7290960 | Sprayable mining liner A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, ... | 11/06/2007 |
| 7270150 | Method of lining a pipeline The present invention is an improved method for installing a liner to repair a pipeline. The method involves placing a flexible lining hose that is coated with a thermosetting resin into the pipeline. A quick setting resin is also applied to the interior walls of th... | 09/18/2007 |
| 7033430 | Cement-containing compositions and method of use A settable fluid cementitious composition which is fluid for sufficient time to be suitable for use in a flexible container to provide support in a mine said composition comprises (i) Portland cement in an amount from at least about 8% preferably 10%, (ii) a water s... | 04/25/2006 |
| 6966610 | Treatment of rock surfaces A method for providing a protective coating in a mine comprising spraying onto the rock surfaces of the mine a hot melt adhesive in an amount to form a coating at least 1 mm, preferably at least 2 mm in thickness and allowing the coating to solidify. The hot melt ad... | 11/22/2005 |
| 6955502 | Method for repairing in-ground tunnel structures A method for repairing in-ground tunnel structure involves applying a first curable resin over a cementitious liner which lines the interior wall surfaces of the tunnel, drilling drainage holes in the cementitious liner, and filling the drainage holes with a second ... | 10/18/2005 |
| 6926466 | Device and a method for rehabilitating conduits A polyurethane applicator (10) for spraying at high-pressures a liner on the inner circumferential wall of an existing conduit (C) to be rehabilitated. The applicator (10) includes a carriage (12) coaxially guided in the conduit (C) and an atomi... | 08/09/2005 |
| 6923597 | Tail shield for a shield tunneling apparatus Present in a tail shield (1) for a shield tunneling apparatus are a number of grouting lines (3) that are open to a tail shield end (4) and that can be supplied with filling material for grouting a ring gap (7) with the filling material, ... | 08/02/2005 |
| 6893188 | Continuous method of realization of works underground, tunnels and excavations in general with works of consolidation, permeabilization and drainage obtained through guided perforations Continuous method of realization of underground tunnels, including the steps of making a plurality of guided perforations of small cross-section around a periphery of an underground tunnel to be realized and extending at least a majority of length of the underground... | 05/17/2005 |
| 6796334 | Duct repairing material, repairing structure, and repairing method The present invention relates to a conduit repairing material, repairing structure, and repairing method thereof, and particularly provides a repairing method for an existing conduit characterized by comprising using a plurality of reinforcing members capable of bei... | 09/28/2004 |
| 6793441 | Tunnel waterproofing method A tunnel waterproofing method comprises spraying a primary coating of concrete onto the excavation surface of a tunnel, installing thereon a waterproofing sheet having an adhesive layer operative to bond with concrete, and spraying a secondary coating of concrete ag... | 09/21/2004 |
| 6776558 | Method and arrangement for concreting vertical shafts A method and an arrangement for concretizing vertical shafts having a depth of e.g. 500 m or more. The concrete is conveyed to a low-lying application site (20) in the shaft by a concrete column that is situated in a downpipe (30). Delivery of concrete... | 08/17/2004 |
| 6767164 | Tunnel waterproofing construction method A tunnel waterproofing construction method that avoids dripping and fogging during spray application, organic solvents, unpleasant odors, and cracking, while providing workability, superior tunnel waterproofing characteristics, and economic advantage. A primary spra... | 07/27/2004 |
| 6761504 | Waterproof cladding construction and method of providing the same A cladding for a partially-overhanging substrate, such as a tunnel wall which comprises in sequence, from the tunnel wall, a drainage means, a sprayed polymeric membrane and a final layer of concrete. The cladding gives an effective cladding in conditions where the ... | 07/13/2004 |
| 6719493 | Method and system for encasing an endless, laid pipeline conduit with backfill concrete The present invention provides, in one aspect, a method and corresponding system in which the production costs may be reduced by virtue of the fact that the laying of the pipe conduit on the one hand and the encasing of the pipe conduit with backfill concrete on the... | 04/13/2004 |
| 6619885 | Telescopic tunnel form The invention relates to a tunnel form comprising: two vertical forming walls (2) joined by a horizontal wall (3) in two parts (3A), and at the base of the form, means for adjusting the height of the position of the top edge (5) of the tunnel form relativ... | 09/16/2003 |
| 6602025 | Process for lining canals, ditches and pipes with a non-sagging polyurethane/geofabric composite A surface of a canal, ditch or pipe is lined with a polyurethane/geofabric composite. A non-sagging polyurethane composition is applied to the canal, ditch or pipe surface, a geofabric is contacted with that surface in a manner such that the geofabric bec... | 08/05/2003 |
| 6450735 | Method and equipment for ventilating underground workings A method and kit for installing a stopping in a mine opening includes securely fixing in the mine opening a screen of a size of about 2 to 24 mesh, preferably about 10 to 20 mesh, most preferably about 12 to 16 mesh, and applying a mortar to the screen to... | 09/17/2002 |
| 6419324 | Method of sealing off a mine passageway A method of sealing off a mine passageway. The method involves installing a plurality of vertical panels side by side across the passageway to form a stopping. The stopping has gaps between adjacent panels and gaps between the panels and adjacent mine sur... | 07/16/2002 |
| 6402427 | Method for reinforcing tunnel linings The lining (1) of a tunnel is reinforced without reducing the tunnel bore. Grooves (6, 9) are cut into the tunnel lining (1) following the maximum curvature or skew to that, sometimes with one set of grooves crossing another set of different depth. Each g... | 06/11/2002 |
| 6375390 | Method for widening road, superhighway or railway tunnels, without interrupting the traffic A construction method for widening road, superhighway or railway tunnels, without interrupting the traffic flow includes a first stage of excavation; in steps, of the ground between the theoretical profile of the future widened tunnel and that of the orig... | 04/23/2002 |
| 6357965 | Method, system and device for building a wall in the ground A wall is built in the ground by pulling a wall building device having cross-sectional dimensions which are substantially equal to the dimensions of at least a part of the cross-section of the wall through the ground, at least a part of the wall being for... | 03/19/2002 |
| 6193439 | Process for cladding substrates and constructions produced thereby A construction for a partially-anchoring substrate, particularly a tunnel, comprises a sealing front layer applied to the substrate or an initial concrete layer applied thereto, and a non-deformable second layer applied to the first layer, the surface of ... | 02/27/2001 |
| 6074131 | Method for installing form in-place dispenser containment A method of upgrading the area below a dispenser to contain accidental release harmful materials from contaminating the soil below grade without repiping, electrical changes, or concrete disruption.... | 06/13/2000 |
| 5716711 | Method for mine support and composition A method and composition for providing gas-impermeable, adherent, flexible, and fire retardant coatings to rock and the like surfaces whereby the rock is supported by the caisson effect and mechanical strength properties of the coatings. The method compri... | 02/10/1998 |
| 5636972 | Device for extrusion of two component synthetic resins A device for the extrusion of two component or two-part synthetic resins, in particular in underground mining and tunnel construction, which essentially consists of an extrusion pump in the form of an axial piston pump, exhibiting or having two pump stage... | 06/10/1997 |
| 5522677 | Travelling concreting device The invention relates to a concreting device with a rotary column (16) pivotable on a chassis (10) about a vertical axis (14), a distribution mast (18) pivotable about a horizontal axis (20) on the rotary column (16) and having at least two extended pole ... | 06/04/1996 |
| 5199817 | Process of providing an elongate underground cavity In the provision of elongate underground cavities having a large volume are to be provided, particularly in the construction of underground railroad stations having at least two stories, it is desired to avoid a need for excavating an open pit and to mini... | 04/06/1993 |
| 5141363 | Mobile train for backfilling tunnel liners with cement grout A mobile train for mixing foamed cement grout within a tunnel and injecting the grout into the annular cavity between the tunnel bore and liner. Cement slurry is suppled to the train through a conduit from a remote mixing plant, and finished foam is forme... | 08/25/1992 |
| 5125455 | Primary cementing This invention relates to a method of cementing a cylinder in a bore, such as a casing in a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement... | 06/30/1992 |
| 4984933 | Grouting method and apparatus A gelling agent is added to a fast setting cement slurry comprising water, cement and anti-washout retarder and the mix is injected into a void containing running water and allowed to set to form rapidly a material of high compressive strength.... | 01/15/1991 |
| 4695188 | Lined rock cistern or tunnel The present invention concerns a rock cistern or tunnel. The inner surface of the wall structure of the rock cistern is a tightly sealing lining. The supporting layer consists of a steel-reinforced water-tight sprayed concrete layer. Between the blasted r... | 09/22/1987 |
| 4623198 | Method for reducing compressed air losses when driving underground cavities supported by compressed air A method for reducing compressed air losses when driving underground cavities which are supported by compressed air. The part of the inner cavity face exposed by mining is sealed by a viscous medium after breaking away the earth. With a supply of propella... | 11/18/1986 |
| 4466758 | Holding body to attach a sealing foil of synthetic material to a foundation Holding body for attaching a sealing foil of synthetic material to a foundation, in particular a tunnel wall, consisting of two discs connected to each other and parallel to each other, of which one with its base surface contacts on the foundation, and th... | 08/21/1984 |
| 4459064 | Elongated underground construction having a uniform section and method of building this construction The reinforced concrete structure of this construction comprises tubular elements of permanent shuttering, connected by structural parts defined by external pile planks and internal permanent shuttering tangential to the tubular elements. The method of bu... | 07/10/1984 |
| 4456401 | Method and apparatus for relining underground passageway There is disclosed a method, apparatus and system for in situ relining underground pipes, lines and passageways particularly sewer lines. A sewer line which has deteriorated and/or otherwise requires repair is cleaned in a conventional manner by use of hi... | 06/26/1984 |
| 4451176 | Apparatus for and method of driving tunnels Apparatus for, and a method of, driving a tunnel utilizes a drive shield to support the forward end of the tunnel where debris material is removed. At the rear end of the drive shield, a lining is created to cover the exposed tunnel wall. This lining is p... | 05/29/1984 |
| 4261670 | Process for the protection of galleries A process for the protection of the surface of the terrain in mine galleries from deterioration due to the surrounding atmosphere is characterized by the operation of spraying onto the wall to be protected, a fluid mixture of aminoplast resin powder and w... | 04/14/1981 |
| 4237182 | Method of sealing interior mine surface with a fire retardant hydrophilic polyurethane foam and resulting product A fire-retarding polyurethane foam is applied to the interior surfaces of a mine such as mine shafts, entries and tunnels. The coating is applied by spraying a mixture of foam-forming ingredients including a hydrophilic polyoxyalkylene urethane prepolymer... | 12/02/1980 |
| 4187037 | Wall supporting arrangement, especially for supporting mine gallery walls A wall supporting arrangement, especially for supporting mine gallery walls, comprises a supporting frame for a wall to be supported and including at least two frame elements located in a plane which is transverse to the elongation of the wall and are spa... | 02/05/1980 |
| 4129991 | Method of producing a concrete lined tunnel or other underground excavation A method of producing a concrete lined tunnel, or other concrete lined underground excavation, in which first a rough tunnel is excavated of a cross-section which is greater than that of the tunnel to be lined with concrete, whereafter a lost form is conn... | 12/19/1978 |
