Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 101 - 150 out of 1,827

Document Document Title
WO1999061388A3
The invention relates to fine mineral powder with the following state variables:, a particle size of essentially up to 0.1 mm; a density of 0.9 to 1.2 kg/l; 7-12 % water; 0.5-3.5 % Na2O; and a specific surface per volume of particles of ...  
WO/1999/061388A2
The invention relates to fine mineral powder with the following state variables:, a particle size of essentially up to 0.1 mm; a density of 0.9 to 1.2 kg/l; 7-12 % water; 0.5-3.5 % Na┬┐2?O; and a specific surface per volume of particles ...  
WO/1999/061386A2
The invention relates to a material for impervious walls, consisting of a fine mineral powder mixed with a hydraulic binding agent, said fine mineral powder having the following state variables: a particle size of essentially up to 0.1 m...  
WO/1999/058469A1
The invention concerns a cement material comprising at least a hydrated calcium silicate substituted by lithium, said substituted silicate having a mol ratio Ca: Si of 0.3 to 1.7 and a mol ratio Li: Si of 0.01 to 1. In said material, par...  
WO/1999/051820A1
A process is provided for constructing a fluid impermeable subterranean barrier wall in a permeable earthen material at an earthen surface. The process is initiated by excavating an earthen pit in the permeable earthen material. A gelabl...  
WO/1999/002280A1
The invention relates to a method for the fluid-supported production of a permeable reaction chamber in the ground, which chamber is filled with a reaction material that removes substances harmful to the ground water from the water or co...  
WO/1998/056515A1
The invention enables economical production of reactors at substantial depths which can be used to clean up soils with contaminated ground water. A permeable geotextile bag, which is built into the contour of a sealing wall, is provided ...  
WO/1998/014283A1
An apparatus for building a horizontal underground barrier (21) by cutting through the soil (17) and depositing a slurry (4). The apparatus includes a digging means for cutting and removing soil (17) to create a void (41) under the surfa...  
WO/1998/004649A1
A method of rendering a volume of ground substantially impermeable to water including applying to the ground a water-soluble calcium salt, allowing the calcium ions in the salt to permeate the ground and then applying an aqueous silicate...  
WO/1998/004647A1
A method of sealing a surface located within an aqueous medium by locating over the surface a first member containing an agent containing a water soluble calcium salt whereby the first member overlies the surface permitting calcium ions ...  
WO/1997/009486A1
A drainage wall device prevents an underground flow of water from penetrating in a ground or underground area (11) and essentially comprises drainage wells (6) connected at their ends to each other by a counter-balancing drainage gallery...  
WO/1996/011074A1
A hazardous waste barrier system for preventing the generally lateral, subterranean migration of certain fluid substances (including both liquid and gaseous fluids) beyond an established perimeter, while providing controlled collection o...  
WO/1995/032339A1
A trench (18) is excavated from the top surface of an earthen dike (10), all the way down to the foundation below the base of the dike. Dry powder, partially hydrolyzed polyacrylamide (PHPA) is mixed with fresh water and soda ash in prop...  
WO/1995/030156A1
An apparatus for detecting a connection between adjacent vertical panels having a first contact element (122) positioned adjacent a bottom of one of the panels, a second contact element (128) positioned adjacent a bottom of an adjacent p...  
WO/1995/021989A1
A method of providing a substantially leakproof shielding layer in the ground. The method includes the following steps: a) making a plurality of substantially parallel holes (H) in the ground by means of a guided drill head (4) which eje...  
WO/1995/021966A1
A process for sealing soil formations, wherein a mineral sealing layer of a cohesive soil with the addition of powdery silicate of sodium is applied and mechanically compacted, and wherein: (a) firstly a homogeneous mixture is prepared f...  
WO/1994/025688A1
The invention pertains to a process for sealing off ground sites (1), in particular a waste dump, abandoned dumping grounds, pipelines or the like, or also still be excavated construction sites, using sealants, wherein a fully course-con...  
WO/1994/019547A1
An apparatus for cutting soil and constructing subsurface containment barriers, such as for constructing subsurface containment walls or basins around and under contaminated soils, comprises an elongated beam (4) for abutting an extended...  
WO/1994/012735A1
A liquid-tight coupling for plastic webs to be interconnected in order to form a sealing wall has an inner part (1) and an outer part (2) constituted by a positive and a negative profile. The outer part is designed as a cable profile and...  
WO/1993/022241A1
Contaminated groundwater is treated in-situ, by funnelling the water through a gate or gates (23) in a watertight in-ground wall (18). Treatment material in the gate (23) breaks down the contaminant, or otherwise removes the contaminant ...  
WO/1993/004237A1
An underground pollution control screen or barrier is disclosed, of the type consisting of a diaphragm wall in the ground extending downward to an impervious ground stratum. The diaphragm wall (3) comprises successive zones provided with...  
WO/1993/000483A1
An apparatus for cutting soil and constructing containment barriers, such as for constructing a subsurface containment walls or bassins for contaminated material, comprises a beam (4) pivoted to a support (6) on the surface for abutting ...  
WO/1992/021826A1
In the ground (T), preceding holes (3) are dug and also a portion between adjoining preceding holes (3) is excavated by use of a wire saw device (9) to thereby form a sheet insertion groove (4), into which a cut-off sheet (5) is inserted...  
WO1990014214A3  
WO/1990/014214A2
A protective housing (1a) accommodates a processing device (10) for processing plastic films (9a, 9b), laminated materials or boards into a liquid, pulp-like or liquid jelly-like material. The housing has slits (8a, 8b) for inserting or ...  
WO/1990/004719A1
A device for current generation and storage with superconductors in the cold sink in which a shelved store (1) has been set up in difficult ground after a cold wall (2) has been formed by the cold sink. Air is to be cooled by thermal and...  
WO/1989/001547A1
In the process described, sewage sludge or sludge from natural water sources is mixed with 30 to 70 wt. %, referred to the dry weight of the sludge, of a water-absorbent aggregate, the mixture so obtained is applied to the soil formation...  
WO/1988/006208A1
In order to make a continuous artificial wall (2) into the ground (S), a trench (T) is dug into the ground and the trench is filled with a specific material. There is provided at a reduced distance (L) backwards of the trench front (7) r...  
WO/1987/003225A1
A waterproofing sheet (12) used to waterproof structures above and below grade has a single layer of non-degradable, water impermeable polymeric membrane (10) that has layers (11) of particles of non-hydrated sodium montmorillonite (sodi...  
WO/1986/001553A1
A process and device for forming a vertical separating wall in the soil (1) by inserting a flexible surface material (5) into a trench (3) filled with a thixotropic slurry (4). The surface material (5) is drawn into the trench (3) by mea...  
WO/1986/001554A1
A flexible foil material for controllable leakproof separation of the areas located on both of its sides, for example a drainage separating wall. In the intermediate area between two closed foils a two-dimensionally connected distance-pi...  
WO/1984/003315A1
High density polyethylene sheets are installed in panel forms to form an impervious barrier to fluid flow particularly corrosive contaminates and pollutants. A slit is excavated in the earth under the bentonite slurry to the required dep...  
WO/1984/001358A1
A cavity is excavated in the earth with preferably sloping sidewalls (11-14) and a first impervious barrier or layer (20) of plastic film or sheet. One or more self-starting pumps (25) are placed at intervals along the slope and embedded...  
WO/1983/004276A1
To lower underground waters in the area of foundation elements, such as foundation piles, a pervious layer of filtering concrete (1), particularly spongy concrete, is arranged under the normal concrete portion (7). Thereby, water is suck...  
WO/1981/002905A1
Pond (2) with filtered water, having a relatively large free surface. The development, that is the invention, consists of a pond (2) disposed along the polluted surface waters (1), having a large flow or a great body of water. Between th...  
JP6498395B2  
JP6480745B2  
JP6475310B2  
JP6463146B2  
JP2019007216A
To provide a disassembling method capable of easily disassembling a timbering.When disassembling a vertically installed timbering unit 10 inside a steel pipe sheet pile 4 cutting off a water area after drying up the inside of the steel p...  
JP2019007232A
To provide an installation method of a timbering and the like capable of easily and properly installing a timbering.When installing a timbering unit 10 inside a steel pipe sheet pile cutting off a water area, a bracket body 82 including ...  
JP6450954B2  
JP6454674B2  
JP6447046B2  
JP6448085B2  
JP2018197470A
To provide a recharge method that makes it possible to preferably maintain water pouring performance of a water pouring well for a long time and enables efficient and effective operation.A recharge method includes: by a filtering device ...  
JP2018197469A
To provide a recharge system and a recharge method that are capable of eliminating sewage water discharge of effluent such as underground water at the time of maintenance, and makes it possible to implement efficient and inexpensive pref...  
JP2018197472A
To provide a recharge method that makes it possible to appropriately perform optimum setting of a specification and the like of a filter device.A recharge method including removing an insoluble substance in object water W1 by filtering t...  
JP2018197471A
To make it possible to preferably supply a precoat material and accurately form a precoat layer on a surface of a spring-type filter.A recharge method including removing an insoluble substance in object water W1 by filtering the object w...  
JP2018193836A
To provide a cofferdam construction method which almost dispenses with an underwater work, and achieves improvement of working efficiency, shortening of a construction period, and cost reduction.A cofferdam construction method for constr...  

Matches 101 - 150 out of 1,827