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| Number | Title | Issue Date |
| 8328469 | Method and apparatus for rainwater remediation on outdoor playing field surfaces A method of remediation of an athletic field playing surface after a rainfall is disclosed. The method includes the steps of providing a quantity of water absorbing polyacrylate polymer such as potassium polyacrylate, spreading the water absorbing polyacrylate polym... | 12/11/2012 |
| 7918627 | Method of treating soil, in particular dry soil sensitive to water A method for treating soils, in particular water-sensitive dry soils, comprising burying a treatment liquid, optionally loaded with a suspended material into trenches and a device for implementing the method. The device comprises a transportable chassis (2), ... | 04/05/2011 |
| 7841804 | Method and composition for stabilizing earth and sand to prevent soil erosion Method for stabilizing sand and earth by precipitation of struvite, comprising applying an aqueous solution of salts comprising: a) Mg2+ ions of a concentration 10-200 mM, b) NH4+ ions either added in the form of ammonium salt or fro... | 11/30/2010 |
| 7682107 | Remote mine seal spray nozzle assembly, system and methods of use A remote mine seal spray nozzle assembly is provided that includes a rotatable nozzle body attached to a down shaft, multiple string casing. The nozzle body receives interchangeable nozzles coactively seated in a multiport manifold of the nozzle body casing. The noz... | 03/23/2010 |
| 7651301 | Drilling head, method of soil improvement work and apparatus thereof A method of soil improvement work drills the ground with a drilling head arranged at a lower end of a rotary shaft and sends the rotary shaft into the ground. The method mixes pressurized water with compressed air on the ground, to prepare a fluid mixture, feeds the... | 01/26/2010 |
| 7452163 | Method of treatment, stabilization and heave control for chromite ore processing residues (COPR) and chromium contaminated soils A process for stabilizing chromium in a chromite ore processing residue (COPR) comprises the steps of adding an acid to consume the excess alkalinity of the COPR, resulting in a pH of less than 10; and adding a chemical reductant to the COPR to convert any hexavalen... | 11/18/2008 |
| 7438500 | Erosion resistant barrier with varying permeabilities The invention relates to a barrier cap material including a blend of: a plurality of aggregate particles, and a plurality of manufactured composite particles including a hydratable sealant material. In a particular embodiment, the segregation of a blend of aggregate... | 10/21/2008 |
| 7427177 | Method of using pulsed ozone to treat soils containing organic contaminants A method of treating a solid matrix containing organic contaminants is provided. The method comprises the steps of a) injecting ozone into the solid matrix for a period of time known as the pulse duration; b) interrupting the injection of ozone into the solid matrix... | 09/23/2008 |
| 7404694 | Method and device for stabilizing a cavity excavated in underground construction A compression body is inserted into the contraction joint between two tunnel lining elements, which body deforms in response to a compressive load caused by the tunnel lining elements moving towards each other. The compression body is composed of a material containi... | 07/29/2008 |
| 7381014 | Natural analog system for reducing permeability of ground A method of chemically and physically treating unconsolidated soils, over burden, fill and certain waste materials (the “ground”), or partly consolidated materials that can be excavated and broken up by normal earth moving and soil mixing equipment. This treatme... | 06/03/2008 |
| 7374371 | Process and composition for forming an earthen hardpan A brine sealant solution and both a one-step and two-step process for producing an earthen hardpan in a pond or slush pit is described. The process disperses clay in an aqueous solution using monovalent and divalent cations and bentonite clay. The dispersed clay is ... | 05/20/2008 |
| 7341664 | Method for forming an in situ groundwater filter A method and system for forming an in situ subsurface filter in a contaminated aquifer and for removing contaminants from groundwater drawn from a contaminated aquifer. The filter is produced in situ by injecting an aqueous solution comprising bacteria-stimulating c... | 03/11/2008 |
| 7335406 | Surfaces for supporting artificial playing surfaces Surfaces and methods for producing surfaces that may support an artificial playing surface are disclosed herein. An example of a surface according to the invention includes a first layer with soil and a plurality of fibers, and a second layer with soil and an organi... | 02/26/2008 |
| 7334644 | Method for forming a barrier A method for forming a barrier to seal off a remote chamber includes the steps of: forming a borehole that communicates between a first location and the remote chamber; inserting a conduit through the borehole to extend into the remote chamber; introducing a flowabl... | 02/26/2008 |
| 7331143 | Seismic base isolation by electro-osmosis A structure is isolated from a seismic event by inducing soil liquefaction in an isolation layer beneath the structure and soil foundation zone, such as by activating an electro-osmosis gradient toward the isolation layer, during the seismic event, based on detectio... | 02/19/2008 |
| 7326400 | Treatment of high sulfate containing quicklime A method is shown for controlling the presence of soluble sulfate ions in a lime slaking operation in which a source of quicklime is combined with slaking water to form calcium hydroxide product. A complexing agent is added to either the quicklime or the slaking wat... | 02/05/2008 |
| 7311145 | Re-use of recovered treating fluid Treating fluid production and subterranean formation treating methods as well as treating fluid compositions that reuse at least part of a prior treating fluid, particularly a fluid having one or more constituents that can be relinked. This includes conditioning a s... | 12/25/2007 |
| 7301066 | Method of making and using nanoscale metal Methods of treating ground water and methods for reducing contaminants (e.g., chlorinated compounds in contaminated ground water) to harmless compounds in the presence of an elemental metal treatment composition. Said methods comprise injecting a treatment solution ... | 11/27/2007 |
| 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 |
| 7281576 | Apparatus and methods for sealing voids in a subterranean formation Downhole tools that include an outer tubing disposed around an inner tubing for placement of a sealant mixture into a void in a subterranean formation and associated methods of use are provided. Furthermore, a method is provided for preparing a cement composition, w... | 10/16/2007 |
| 7276115 | Conformable coating A conformable coating for application to a soil substrate for barrier, adhesive, and planting properties includes a mixture of recycled or virgin materials, including organic fibrous material from wood based material and cotton based material, and gypsum bearing mat... | 10/02/2007 |
| 7220708 | Drilling fluid component A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternat... | 05/22/2007 |
| 7216707 | Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophil... | 05/15/2007 |
| 7217755 | Organic/inorganic nanocomposites, methods of making, and uses as a permeable reactive barrier Nanocomposite materials having a composition including an inorganic constituent, a preformed organic polymer constituent, and a metal ion sequestration constituent are disclosed. The nanocomposites are characterized by being single phase, substantially homogeneous m... | 05/15/2007 |
| 7207387 | Methods and compositions for use with spacer fluids used in subterranean well bores The present invention relates to spacer fluids used in subterranean operations and, more particularly, to spacer fluids that comprise water-soluble relative permeability modifiers and methods of using the spacer fluids in subterranean operations. In one embodiment, ... | 04/24/2007 |
| 7207503 | Chemical dispensing means for a travelling lawn sprinkler A chemical dispenser which is selectively removably mounted on a travelling lawn sprinkler. The chemical dispenser dispenses liquid chemical into the water being sprinkled onto the lawn by the water distributor as the self-propelled travelling lawn sprinkler propels... | 04/24/2007 |
| 7201798 | Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations Cement compositions for use in subterranean formations are provided. An example of a cement composition is a cement composition comprising: water, a cementitious component consisting essentially of: hydrated lime, and silica; and a dispersant. Another example of a c... | 04/10/2007 |
| 7192221 | System for preventing seismic liquefaction of ground in urbanized area A system for preventing seismic liquefaction of the ground in an urban area built on reclaimed land consisting of a loose fine grained layer vulnerable to liquefaction underlain with a soft cohesive layer liable to uneven settlement. The system includes a plurality ... | 03/20/2007 |
| 7182136 | Methods of reducing water permeability for acidizing a subterranean formation The present invention provides a method of stimulating a subterranean formation penetrated by a well. The formation has a water-bearing section and a hydrocarbon-bearing section. The method includes the steps of: (a) introducing into the formation an aqueous treatme... | 02/27/2007 |
| 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 |
| 7159656 | Methods of reducing the permeabilities of horizontal well bore sections Methods of temporarily reducing the permeability of one or more selected sections of a subterranean formation penetrated by a horizontal well bore and the flow of water or water and hydrocarbons or hydrocarbons therefrom are provided. The methods comprise the steps ... | 01/09/2007 |
| 7157021 | Methods and compositions for dust and erosion control The invention is directed to compositions and methods for treating a particulate and for dust and erosion control. The compositions comprise a dissolved sugar solid. Preferably, the composition comprises a dissolved sugar solid, further in combination with a salt or... | 01/02/2007 |
| 7150583 | Electro kinetic geosynthetic structure An EKG structure comprising geosynthetic material associated with at least one conducting element wherein the structure comprises at least one core element substantially enclosed by at least one sheath, one or both comprising the geosynthetic material; the use there... | 12/19/2006 |
| 7144362 | Method for chemically stabilizing waste materials containing multivalent oxyanions A method of chemically stabilizing multivalent oxyanions in residue materials such as wastes from glass manufacturing facilities which method involves adding to the residue material cement, lime and aluminum sulfate to form a clay-like material having a low leachabi... | 12/05/2006 |
| 7140805 | Method of treating municipal solid waste One aspect of the present invention relates to a method of treating municipal solid waste which includes landfilling a volume of solid waste, a substantial portion of which has been exposed to the atmosphere, adding moisture to the solid waste, compacting the moiste... | 11/28/2006 |
| 7128841 | Dispersed zero-valent iron colloids Stable dispersions of zero-valent iron particles are produced by milling of micro- and nano-scale iron particles (colloids) in the presence of a dispersant or dispersants. ... | 10/31/2006 |
| 7117942 | Methods useful for controlling fluid loss during sand control operations The present invention relates to methods useful during sand control operations and, more particularly, to using water-soluble relative permeability modifiers that are useful for controlling fluid loss during sand control operations. In one embodiment, the present in... | 10/10/2006 |
| 7114568 | Hydrophobically modified polymers for a well completion spacer fluid A method and composition is provided for a relative permeability modifier for use with aqueous well treatment fluids that comprises a hydrophobically modified water soluble polymer or a hydrophilically modified water soluble polymer. ... | 10/03/2006 |
| 7097388 | Grout injecting/structure anchoring system A grout injecting/structure anchoring system has a support bracket with a horizontal portion and a pair of threaded recesses and a sleeve there between. A grout tube has a plurality of apertures along its length. A lower cross brace is positioned above the sleeve an... | 08/29/2006 |
| 7090436 | Process to prepare in-situ pilings in clay soil A method of forming in-situ pilings in clay soil. An auger stirrer is rotatably and axially forced into the ground. Water, dry binder (cement/or lime), and air are injected to lubricate the tool, and liquify the mix of clay soil, binder and air to form a uniform str... | 08/15/2006 |
