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Patent Searching and Data


Matches 451 - 500 out of 7,128

Document Document Title
WO/1994/005897A1
This invention relates to an environmental engineering process for injecting a mixture into the ground to act as a containment barrier for fluids or gases or to act as in situ waste remediation process. The process involves pumping a mix...  
WO/1994/005863A2
There is described a water-proofing material (10) basically made from a plastic mass containing a liquid and particulate smectite clay, usually montmorillonite such as bentonite, which can be united with a carrier sheet (20). The plastic...  
WO/1994/004761A1
A method in which a plasma arc torch (16) is used to vitrify and remediate a site containing municipal waste (12), contaminated soils, resulting from a hazardous material deposit or spill, or contaminated buried objects. The process step...  
WO/1994/004606A2
The present invention is directed to melt blown polyolefin film which is produced cheaply by melt blowing polyolefin resins which contain 25 to 60 wt% fillers selected from the fillers including an inorganic carbonate, synthetic carbonat...  
WO/1994/001625A1
Drive-in type concrete forms for an underground wall (10, 56, 60, 62, 64, 74, 76, 78 and 80) include water permeable layers (28) and water conduits (30) for discharging leaked water and the like from a concrete wall (14). When the concre...  
WO/1993/023627A1
A building footing system for carrying a super structure thereon comprising a monolithic building slab raised from the underlying substrate and supported by a three position support means, thereby providing a statically determinate struc...  
WO/1993/022509A1
A permanently-installed form-drain (10) including hollow, foraminous planks (12) and connectors (16, 18) for joining two or more of the planks in a continuously arranged concrete barrier. The instant improvements include an adapter (20/2...  
WO/1993/022510A1
The present invention relates to methods of preventing subsidence in buildings by reducing dissipation of moisture from the clay layer in which the footings of the building are founded. The methods employed may be used to replace dissipa...  
WO/1993/022076A1
The monitoring device comprises two sensor hoses (4, 12) arranged mutually parallel on either side of a sealing film (2). A transport medium (m) can flow through them in the same or opposite directions. At least one detector (34) is used...  
WO/1993/021392A1
A wrapping (2) for a conductor, riser or pile (1) on an offshore rig is a composite sheet with an outer skin (3) of impermeable resilient flexible material and an inner layer (4) of felt impregnated with a thixotropic gel. The edges of t...  
WO/1993/019250A1
A grid composite (108, 130) includes a regular polymer geogrid structure (40) formed by biaxially drawing a continuous sheet of select polypropylene material (28) which is heat bonded to a polyester fabric (46). The polymer grid composit...  
WO/1993/017194A1
The ingress of hazardous gases, especially radon, into buildings is completely or largely prevented by horizontal blocking systems in the floor. A further improvement in protection is to be attained by a device by means of which the rise...  
WO/1993/016243A1
A device in a joint between two sheet-like building elements made for insulating purposes has the element portions of both elements extending along the joint border designed to be brought into engagement with each other and to create a c...  
WO/1993/016009A1
Disclosed is a process and installation for producing materials for minerally bonded heat, sound and vibration damping components which do not exhibit brittleness when subjected to pressure or bending stress. The basis of the invention i...  
WO/1993/016237A1
A vented structure rests on a substrate (10) and comprises a shuttering element (1) including pillars (3) and an upper surface (9) which supports cast material in the form of a slab or beam. The pillars (3) are spaced from each other and...  
WO/1993/011307A1
The invention relates to processes for local ground treatment, especially the testing and cleaning of a polluted ground in which a sample taken from the ground or polluted liquid arising from the polluted soil layer or polluted ground wa...  
WO/1993/004217A1
A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising: a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinfo...  
WO/1993/004238A1
A slab-like building element (1) made of a pressure-resistant material has projections (3 and 4) on both sides of the mid-plane (2). The projections (3) on the side of the slab that face the building (5) occupy a smaller surface than the...  
WO/1993/003241A1
The invention provides a corrosion resistant coating for a steel pole (10) destined to be embedded in the ground and is particularly suitable in highly corrosive soil regions, e.g. arid regions and includes a method of applying a cement ...  
WO/1993/002807A1
A laminated waterstop strip is placed on the top of a surface of a hardened concrete layer of footing of a building, prior to pouring of an additional layer preferably bentonite. The strip has a number of granular layers (88, 92) held wi...  
WO/1993/001440A1
Various constructions of prefabricated sleeve are described for fitting round pipes which are to have brickwork or foundation work in concrete made round the pipe. The sleeve acts to hold the mortar/concrete away from the pipe (12) until...  
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/1992/016316A1
An element for sealing and monitoring a body (1) comprises two seals (4, 5) separated from each other by supporting elements (6) with at least one open channel (7) between them. One or more sensors (18) are arranged at the outlet opening...  
WO/1992/014004A1
A method of building a structure (22) on a substrate (14), said method including the steps of providing on the substrate (14) a support arrangement capable of adopting a first, substantially rigid state whilst the structure (22) is being...  
WO/1992/013143A1
The invention calls for a pipe with perforated walls to be laid on, in or under the waterproofing, such as that located on and under waste dumps, to be monitored and if necessary repaired, the monitoring and repair operations being under...  
WO/1992/010617A1
The use of a mat as a protective mat for sealing webs is disclosed. The mat is composed of at least two superimposed, mutually spaced and linked textile flat structures (1, 2). A granulated material (3) is arranged between at least two o...  
WO/1992/006801A1
The invention provides a new method for sealing off a mass of waste which comprises: surrounding the mass of waste, stabilized waste or its placement side with at least one substantially continuous layer of porous material, the layer def...  
WO/1992/004504A1
An adjustable width split sleeve (13) adapted to be securely wrapped around an elongate member (15). Each end of the sheet is wrapped around a respective first rod. Each first rod is rotated about a second which is parallel and adjacent ...  
WO/1991/019862A1
The present invention concerns an isolation element for the isolation of vibrations and/or heat, which propagate/s in a medium such as soil, as well as the application of isolation element in an isolation arrangement. The isolation eleme...  
WO/1991/013225A1
The invention relates to an apparatus and a method for building a foundation for uprights, such as flagpoles, posts, pillars or the like, or for making passages e.g. for cables, tubes etc. The apparatus (1) includes a drive-shaft (3) equ...  
WO/1991/010782A1
System for protecting foundation walls and the like, said system comprising at least one main protecting sheet made of an imperforate, relatively thin, stiff material and including protrusions formed therein, for thereby providing air ch...  
WO/1991/009513A2  
WO/1991/009155A1
A grid electrode having a tailored surface for cathodic protection of steel rebar reinforced concrete structures comprising a plurality of valve metal strips having voids and optionally valve metal strips without voids, said strips havin...  
WO1991003441A3  
WO/1991/003441A2
The invention relates to a process for reutilizing organic refuse for the purpose of producing permanent humus, substrates and manure, in which the organic refuse is size reduced, composted and reutilized by decomposing it to humus produ...  
WO/1991/002850A1
A hazardous waste containment system for preventing the lateral migration of hazardous fluid substances into the water table, particularly for sites which are located over a fluid impermeable strata (20). The system uses an encircling wa...  
WO/1991/000395A1
A laminated sheet which is useful as part of an underground drainage system for a basement is disclosed, and which includes a layer of polystyrene and at least one layer of a polyolefin laminated to one side of the polystyrene layer. The...  
WO/1990/015908A1
A soil-sealing system for refuse dumps, roofs covered with vegetation, etc., comprises a sealing film (2) overlaid by a drainage layer (1) composed of overlapping sections of used tyres, and a filter layer (3). The drainage layer forms a...  
WO/1990/015290A1
The system for removing the soil gas from the ground surrounding the building structure (12), includes a drain tile system (10), a clean-out pipe (64), an air duct system (46), and a fan (60). The air duct system is securable to a clean-...  
WO/1990/014222A1
A liner (15, 25, 40) to prevent transmission of hydrocarbons from one location to another and from seeping into the ground has a flexible backing sheet (17, 26, 91) of suitable size which has one or more layers (16, 27, 42) of particles ...  
WO/1990/009488A1
Steel piling (1) for quays and other waterside structures has an anti-corrosion cladding fitted. Flexible or rigid water-impermeable sheets (4, 17) are used to trap a gel loaded with anti-corrosion agents against the piling and to exclud...  
WO/1990/008605A1
A process is useful for consolidating existing refuse dumps by injecting a suspension preferably of a hydraulic binder into the cavities in the dump under a pressure of up to 1200 bar. The process is also useful for sealing the layers of...  
WO/1990/007612A1
The prefabricated creep foundation in accordance with the invention is a building system for the laying of the foundations for a heated building with a beam structure above an enclosed, unventilated creep space. The foundations are const...  
WO/1990/006480A1
A method and system is disclosed for reversibly establishing a closed, flow-impervious cryogenic barrier (30) about a predetermined volume extending downward from a containment site on the surface of the Earth. An array of barrier boreho...  
WO/1989/012551A1
A barrier, particularly to methane and radon, employs a barrier layer (10) (preferably aluminium) encapsulated in protective layers (14, 16) which are bonded to all of its surfaces and extend beyond its main edges where they are mutually...  
WO/1989/007493A1
The refuse dump disclosed, comprising a basin (22) partly sunk in the ground (13), several insulating layers and degasing pipes (16), is characterized in that the following layers are superimposed in ascending order: a watertight layer (...  
WO/1989/005890A1
The invention relates to an apparatus for drawing off ground air under the foundation slab of a house. A tube (1) is placed in an excavation made some meters away from the house and the bottom end part of the tube is downwardly open and ...  
WO/1989/003913A1
An insulating structure for use in, e.g., road constructions, building foundations, roof structures, etc., includes at least two sections, each of which comprises a plurality of mutually adjacent insulating slabs. For the purpose of faci...  
WO/1989/002500A1
The present invention relates to a method of controlling the movements of a filling material or a similar material in conjunction with a rigid construction, for which purpose a compliant layer is created in backfill material in close ass...  
WO/1989/002505A1
The present invention relates to a method and an arrangement for influencing the interaction between a layer of earth and a structure situated in association with the layer of earth. What is characteristic of the invention is that a casi...  

Matches 451 - 500 out of 7,128