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| Number | Title | Issue Date |
| 7357601 | Adaptive coupling and method An adaptive coupling and method for joining a conduit to a barrier sheet through which the conduit passes are disclosed. The barrier sheet is movable axially relative to the conduit. A tubular member and an extensible boot are configured to allow passage of a portio... | 04/15/2008 |
| 7309188 | Drainable base course for a landfill and method of forming the same Numerous embodiments of one or more layers of void-maintaining synthetic drainable base courses (“VMSDBC's”) are provided as incorporated into landfills and other waste containment facilities. ... | 12/18/2007 |
| 7284930 | Composition and method for forming a sprayable materials cover An alternative cover for landfill may be formed from a slurry mixture of water, cementitious binder, adhesion enhancing admixture and fiber. These constituents may be mixed and applied to cover landfilled wastes, granular material piles or for soil erosion control. ... | 10/23/2007 |
| 7163358 | Injection grouting The invention relates to the use of a composition for injection grouting obtainable by mixing an alkali metal silicate or an organic silicate, colloidal silica particles, and at least one gelling agent, wherein the weight ratio of colloidal silica to silicate is fro... | 01/16/2007 |
| 7153061 | Method of in situ retrieval of contaminants or other substances using a barrier system and leaching solutions Processes and methods relating to treating contaminants and collecting desired substances from a zone of interest using subterranean collection and containment barriers. Tubular casings having interlock structures are used to create subterranean barriers for contain... | 12/26/2006 |
| 7070359 | Microtunneling systems and methods of use A tunneling system including a tunneling apparatus including a cutting structure for forming a borehole and at least one linkage section for transmitting a force generally toward the cutting structure is disclosed. A method of disposing a casing string within a subt... | 07/04/2006 |
| 7056058 | Transport corridor drainage systems A drainage structure having perforated parallel top and bottom plates (5 & 6) separated by spacer members (7). A web (15) joins adjacent spacer members (7) and has a curved profile (17) such that water spilling over the web ... | 06/06/2006 |
| 7037040 | Method for the placement of subterranean electrodes A method for the placement of subterranean electrodes is disclosed and which includes the steps of providing an earth engaging drill; forming a bore hole in the surface of the earth with the earth engaging drill; providing an electrode; and delivering the electrode ... | 05/02/2006 |
| 7014391 | Portable environmental containment system A temporary berm or bin system, easily transported, erected without tools, and easily dismantled. A set of panels or planks is joined with sliding clips to form a bin having vertical or near vertical sides. The bin is lined with an impervious sheet of geocloth to fo... | 03/21/2006 |
| 6860680 | Waste containment and processing facilities formed contemporaneously with the disposal of mineral refuse, and related methods The invention pertains to means and methods for enabling the further use of previously negative assets, and particularly from those facilities formed from gypsum waste, such as that suitable for forming gypsum stacks. Waste containment or landfill facilities are for... | 03/01/2005 |
| 6758634 | Subsurface materials management and containment system Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create... | 07/06/2004 |
| 6742962 | Infiltration and gas recovery systems for landfill bioreactors A trench located in a landfill including the combination of a liquid infiltration piping system and a horizontal gas withdrawal piping system, the combination allowing for simultaneous liquid infiltration and gas withdrawal from a landfill. ... | 06/01/2004 |
| 6368019 | Method for soil remediation The present invention provides a method for remedying soil containing a region polluted with a pollutant which comprises a step of injecting into the soil a liquid containing a microorganism having an activity to decompose the pollutant or a liquid contai... | 04/09/2002 |
| 6361249 | Negative air pressure cover A method for covering a lagoon, manure storage basin, waste water retention pond, water reservoir, open top material storage tank, stacks or piles of commodities, having a perimeter and a containment portion, wherein the method acquires the placement of a... | 03/26/2002 |
| 6338596 | Waste collection device A waste collection device which comprises, inside a pit, a plate for supporting at least one container; the plate is provided with supports adapted to limit its downward motion to a minimum elevation which allows the container to lie fully within the pit;... | 01/15/2002 |
| 6315495 | Portable environmental containment system A temporary berm or bin system, easily transported, erected without tools, and easily dismantled. A set of panels or planks is joined with sliding clips to form a bin having vertical or near vertical sides. The bin is lined with an impervious sheet of geo... | 11/13/2001 |
| 6283676 | Sequential aerobic/anaerobic solid waste landfill operation Landfills including multiple lifts having horizontal piping layers and methods for their use to accelerate anaerobic and/or aerobic degradation of municipal solid waste to increase landfill capacity.... | 09/04/2001 |
| 6213685 | Mechanical boot system A mechanical type boot including a vertically positioned riser in a tubular configuration with an outwardly flanged upper end and an outwardly flanged lower end. Vertical bolt holes are provided through the ends. Vertical bolt holes are provided in a lowe... | 04/10/2001 |
| 6095720 | Stabilized fluid barrier member and method of forming same The invention relates to a stabilized fluid barrier member and to methods of forming the same. The fluid barrier comprises a first outer sheet member having a top surface and a bottom surface, with a stabilizer element overlying at least part of the first... | 08/01/2000 |
| 6074132 | Lining for a landfill site A method of lining a side face (11) of a landfill site comprising the steps of erecting a framework (10) including laterally spaced substantially vertically extending members (12) adjacent the surface of the side face (11), covering the framework (10) wit... | 06/13/2000 |
| 6071043 | System for securing landfills The invention provides a method for securing waste landfills so as to prevent seepage of fluids into natural formations. A coating composition containing rubber crumb is sprayed onto polymeric liners enclosing the waste so as to encapsulate the ends or se... | 06/06/2000 |
| 6056477 | Waste disposal site A waste disposal site according to the present invention is provided with water-impermeable properties by water-impermeable materials covering a bottom surface and a sloped side surface of the waste disposal site. The waste disposal site is provided with ... | 05/02/2000 |
| 6039504 | Process and apparatus for the treatment of waste A waste processing system transports waste by rail to a processing location near a landfill site where it is pulverized and mixed to form a slurry. This slurry is delivered to the landfill with an auger device. The landfill is first prepared by placing a ... | 03/21/2000 |
| 5980446 | Methods and system for subsurface stabilization using jet grouting Methods and systems are provided for stabilizing a subsurface area such as a buried waste pit for either long term storage, or interim storage and retrieval. A plurality of holes are drilled into the subsurface area with a high pressure drilling system pr... | 11/09/1999 |
| 5980155 | Composite geosynthetics and methods for their use The invention relates to a novel geosynthetic which in a first embodiment comprises a composite geosynthetic comprising reinforcement material embedded in a drainage material; and in the second embodiment of the invention there is provided an electrically... | 11/09/1999 |
| 5961437 | Multi-layer waste containment barrier An apparatus for constructing an underground containment barrier for containing an in-situ portion of earth. The apparatus includes an excavating device for simultaneously (i) excavating earthen material from beside the in-situ portion of earth without re... | 10/05/1999 |
| 5957624 | Apparatus and method for in Situ installation of underground containment barriers under contaminated lands An apparatus for constructing a subsurface containment barrier under a waste site disposed in soil is provided. The apparatus uses a reciprocating cutting and barrier forming device which forms a continuous elongate panel through the soil having a defined... | 09/28/1999 |
| 5836390 | Method for formation of subsurface barriers using viscous colloids A method for formation of subsurface barriers using viscous liquids where a viscous liquid solidifies at a controlled rate after injection into soil and forms impermeable isolation of the material enclosed within the subsurface barriers. The viscous liqui... | 11/17/1998 |
| 5820298 | Seamless landfill sump A seamless landfill sump including a bottom and a plurality of walls defining an open reservoir and including a welding ledge integral to the reservoir opening. The seamless landfill sump may also include side support ribs integral to the sump bottom and ... | 10/13/1998 |
| 5816748 | Method for sealing off ground sites The invention pertains to a process for sealing off ground sites in particular a waste dump, abandoned dumping grounds, pipelines or the like, or also excavated construction sites, using sealants, wherein a fully course-controlled boring technique is used... | 10/06/1998 |
| 5791825 | Device and method for producing a containment barrier underneath and around in-situ buried waste An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably on which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the... | 08/11/1998 |
| 5788413 | Geocomposite membrane A water and oil impermeable geosynthetic clay liner is formed by supporting a layer of bentonite on an impermeable plastic layer. Integrally formed protrusions extend from one surface of the plastic layer to support a permeable plastic cover layer. The co... | 08/04/1998 |
| 5788422 | Underground barrier construction apparatus with soil-retaining shield An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under th... | 08/04/1998 |
| 5765965 | Apparatus for in situ installation of underground containment barriers under contaminated lands An apparatus for constructing a subsurface containment barrier under a waste site disposed in soil is provided. The apparatus uses a reciprocating cutting and barrier forming device which forms a continuous elongate panel through the soil having a defined... | 06/16/1998 |
| 5701692 | Containment wall installation process and apparatus A method of installing a groundwater containment system is provided utilizing a powered trenching apparatus. The apparatus includes a boom at an end thereof; a trenching tool coupled to the boom; and frame structure mounted with respect to the boom. The f... | 12/30/1997 |
| 5685668 | Barrier wall installation system An apparatus for delivering liner material into a trench prevents sidewall collapse in a subsurface water saturated zone, provides for inspection of vertical joints, avoids the necessity for dewatering of an area to be trenched, and provides continuous ro... | 11/11/1997 |
| 5620778 | Clay type liquid-resistant protective layer A liquid-resistant protective layer which at least consists of a material layer containing clay, has, adjacent at least one edge of the layer, at least one groove or slit which extends into the material layer containing the clay to enable sealed joints to... | 04/15/1997 |
| 5601906 | Geosynthetic barrier to prevent wildlife access to contaminated sediments A geosynthetic barrier adapted to deny wildlife access to contaminated seents (CS), includes a geocomposite (10) formed of a top layer (14) juxtaposed on a bottom layer (12) which is adapted to be placed on the sediments. The top layer includes a geosynt... | 02/11/1997 |
| 5599139 | Method of constructing a liner system and waste containment facility incorporating same A method of constructing a liner system for a waste containment facility having substantially vertical sidewalls utilizing a plurality of vertical expansion boxes for holding a flexible membrane liner against a rock face or any other approximately vertica... | 02/04/1997 |
| 5570974 | Assembly for monitoring a landfill and a method of locating leaks The monitoring assembly for a landfill or garbage dump comprises two sensor hoses, which are laid on both sides of a sealing liner parallel to each other. A transport medium can flow through the sensor hoses in the same or in opposite directions. First an... | 11/05/1996 |
