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| Number | Title | Issue Date |
| 7959377 | Method of preparing a foundation structure This invention provides a method of preparing a foundation structure including the steps of forming foundation trenches in the ground; and heating the ground defining the trenches sufficiently to irreversibly change the properties of the ground defining the trenches... | 06/14/2011 |
| 7712999 | Method and apparatus for drying soil A method and apparatus for drying soil wherein a soil drying machine is adapted to traverse an area of soil and to dry the soil in the process. The soil drying machine includes a main frame having an air generating device, such as a blower, and a heater mounted ther... | 05/11/2010 |
| 7293417 | Methods and apparatus for processing, transporting and/or storing cryogenic fluids A cryogenic fluid storage/processing system which includes a tank for storing the cryogenic fluid, and a containment wall surrounding the tank and defining an impoundment area. The system further includes a vaporizer for regasification of the cryogenic fluid. Piping... | 11/13/2007 |
| 7290962 | Method for reducing the liquefaction potential of foundation soils The aim of this invention is to present a method in which holes (1) are drilled into the ground for the injection of highly expansive grouts (5), so that the subsoil is void filled and compacted and thus the liquefaction potential under earthquake and ... | 11/06/2007 |
| 7284931 | Magma evacuation systems for the prevention of explosions from supervolcanoes An apparatus controls the evacuation of volcanic magma to prevent explosions. Magma evacuation is through a single evacuation tube that heats the magma flow within the tube to prevent stickiness of the magma in the tube. The heating may use small combustion chambers... | 10/23/2007 |
| 7204182 | Apparatus for heating spent ammunition cases An apparatus for destroying the volatility of propellant and primers associated with small arms ammunition which become inadvertently commingled with a supply of spent casings prior to material deformation and reclamation. The apparatus preferably includes three maj... | 04/17/2007 |
| 7077198 | In situ recovery from a hydrocarbon containing formation using barriers A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be used to inhibit migration of fluids. Inhibition of migration of fluids ... | 07/18/2006 |
| 7033113 | Mid-line connector and method for pipe-in-pipe electrical heating For heating a pipe-in-pipe pipeline with power provided through an electric cable, mid-line connector is provided including: a connector housing joinable to the outer pipe of the pipeline; a blank pipe positioned within the connector housing and joinable to the inne... | 04/25/2006 |
| 6951436 | Thermally enhanced soil decontamination method A method is provided to remove contaminants from contaminated soil. The method may include withdrawing vapors from a vapor extraction well, estimating the amount of water vapor removed from the contaminated soil in the vapors being withdrawn from the vapor extractio... | 10/04/2005 |
| 6509557 | Apparatus and method for heating single insulated flowlines Apparatus and method are provided for electrically heating subsea pipelines. An electrically insulating layer is placed over the pipe in the segment of the pipeline to be heated and electrical current is caused to flow axially through the steel wall of th... | 01/21/2003 |
| 6413399 | Soil heating with a rotating electromagnetic field A soil remediation system heats contaminated soil by generating a rotating sub-surface electromagnetic field. The system includes three electrodes disposed 120 degrees apart on a remediation circle. These electrodes are excited by AC voltages with 120 deg... | 07/02/2002 |
| 6276873 | Ground water remediation control process A continuous process for removing organic contaminants from a subsurface formation. The process having the steps of: (a) treating the subsurface formation to mobilize the organic contaminants, such treating of the subsurface formation including withdrawin... | 08/21/2001 |
| 6273638 | Automated air handling system for sports field An air handling system includes an air handling device connectable to a duct network that is underneath a field having grass growing in it, at least one sensor disposed to measure a variable associated with the field, and a control unit connected to the a... | 08/14/2001 |
| 6183162 | Method for treating vapors and liquids recovered from a subsurface remediation process A continuous process for removing organic contaminants from a subsurface formation. Including the steps of (a) injecting steam into the subsurface formation via an injection conduit, (b) removing a liquid stream from the subsurface formation via a liquid ... | 02/06/2001 |
| 6142706 | Thermal treatment wall A thermal treatment wall emplaced to perform in-situ destruction of contaminants in groundwater. Thermal destruction of specific contaminants occurs by hydrous pyrolysis/oxidation at temperatures achievable by existing thermal remediation techniques (elec... | 11/07/2000 |
| 6120430 | Method of melting solid materials A method of melting solid materials while controlling melt shape, without the expenditure of energy to melt unwanted quantities of surrounding materials, and an apparatus to effect the method. The method comprises the use of a planar starter path between ... | 09/19/2000 |
| 5997214 | Remediation method A method is provided to remove volatile liquid contaminates from a contaminated volume of earth, the contaminated volume lying above a noncontaminated layer of earth, the method including the steps of: penetrating the contaminated volume with at least one... | 12/07/1999 |
| 5986159 | Chemical tailoring of steam to remediate underground mixed waste contaminents A method to simultaneously remediate mixed-waste underground contamination, such as organic liquids, metals, and radionuclides involves chemical tailoring of steam for underground injection. Gases or chemicals are injected into a high pressure steam flow ... | 11/16/1999 |
| 5984578 | Apparatus and method for in situ removal of contaminants using sonic energy In preferred embodiments, an apparatus and method for enhancing the in situ removal of at least one contaminant from a contaminated body, the body being provided with at least one interstice, by generating and focusing vibrations toward the interstice, th... | 11/16/1999 |
| 5975799 | Electro-osmotic infusion for joule heating soil remediation techniques Electro-osmotic infusion of ground water or chemically tailored electrolyte is used to enhance, maintain, or recondition electrical conductivity for the joule heating remediation technique. Induced flows can be used to infuse electrolyte with enhanced ion... | 11/02/1999 |
| 5954452 | In situ remediation of underground organic pollution Heated hydrogen peroxide reagent under pressure is supplied to a well for underground remediation of pollution; the reaction with the pollutant is exothermic so that the high temperature of the reagent when injected is maintained as the reagent spreads. T... | 09/21/1999 |
| 5944444 | Control system for draining, irrigating and heating an athletic field A control system for an athletic field coordinates drainage by gravity or vacuum-enhanced and irrigation by monitoring water level with respect to a subsurface membrane, wherein a flow network resides on the membrane and is covered by a fill layer, which ... | 08/31/1999 |
| 5931600 | Thermal desorption and destruction of dense non-aqueous phase liquid in fractured bedrock An in-situ method for thermal desorption, extraction, and destruction of dense nonaqueous organic contaminants in fractured bedrock is accomplished through the use of thermal wells, a flameless oxidizer, and hot carbon adsorption chambers.... | 08/03/1999 |
| 5910093 | Starter tube for use in vitrification process The invention disclosed here is a starter tube for initiating a vitrification process for melting contaminated soils, waste products, and hazardous materials. The starter tube comprises a tubular sheath made of a flexible material. Received within the she... | 06/08/1999 |
| 5908267 | Treating non-naturally occurring subsurface soil contaminants with pneumatic injection of dry media A method for pneumatically fracturing a soil formation, and thereafter utilizing or maintaining the fracture network thus formed by continuous injection of a gas stream into the fracture network, and introducing into that gas stream dry media which is ent... | 06/01/1999 |
| 5879109 | Process and apparatus for introducing an optical or electrical cable into solid ground A process and apparatus for introducing a cable into a channel, which is formed into a heated surface of solid ground, such as asphalt, displaces the material to form a channel, inserts the cable and then reintroduces the displaced material back into the ... | 03/09/1999 |
| 5873675 | Method for hazardous waste vitrification Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic con... | 02/23/1999 |
| 5836718 | Method and apparatus for ex situ cleaning of contaminated soil A method for ex situ cleaning of contaminated soil using a closed system of heat-conductive solid-walled pipes embedded in the contaminated soil, the pipes being in communication with the heat source that heats and circulates air throughout the system of ... | 11/17/1998 |
| 5838880 | Ground heating system A ground heating system is provided comprising an internal combustion engine which has a shaft output and an exhaust gas stream. An electric alternator/generator is driven by the shaft output of the engine. A working fluid is provided for transferring hea... | 11/17/1998 |
| 5829519 | Subterranean antenna cooling system The present invention provides a system for cooling antenna assemblies, such as subterranean RF antennas used to heat geological formations. The invention generally includes a radio frequency (RF) generator, a waveguide operatively connected to the RF gen... | 11/03/1998 |
| 5827012 | Thermal plasma conversion of local soils into construction materials A plasma arc torch heat based apparatus and method converts a quantity of particulate soil having a first set of engineering properties into a selected number of smaller quantities each having improved engineering properties differing from the first set o... | 10/27/1998 |
| 5820301 | Method for thawing frozen ground The object of the present invention to provide a method for thawing frozen ground for laying concrete primarily at a construction site by use of a continuous length of circulating hose placed on the frozen ground inside and/or adjacent a concrete form or ... | 10/13/1998 |
| 5813799 | Combustion process and apparatus for removing volatile contaminants from groundwater or subsurface soil Combustion is used as a source of heat to remove polluting volatiles from contaminated groundwater and subsurface soil. A burner assembly is placed in a well, either in or out of an aquifer, to produce steam and/or hot air and/or hot water which drives of... | 09/29/1998 |
| 5788412 | Method for in situ contaminant extraction from soil The present invention involves heating of sub-surface soil by use of conduction heating intermediate the injection and extraction wells of a vacuum extraction system. This conduction heating is accomplished by implanting heat exchange units, such as a cir... | 08/04/1998 |
| 5769569 | In-situ thermal desorption of heavy hydrocarbons in vadose zone An in-situ thermal desorption system and process is utilized for mobilization and removal of nonvolatile and semi-volatile hydrocarbons from contaminated soil in the vadose zone. Persistent hydrocarbons are thermally desorbed by direct heating of the cont... | 06/23/1998 |
| 5765964 | Submerged combustion process and apparatus for removing volatile contaminants from groundwater or subsurface soil Combustion is used as a source of heat to remove polluting volatiles from contaminated groundwater and subsurface soil. The combustor is placed in a well, either in or out of an aquifer, to produce steam and combustion product gases and/or hot water which... | 06/16/1998 |
| 5746540 | Method of isolating a nuclear reactor or other large structures A method of entombing a nuclear reactor where the reactor with its bio-shield remains intact. An access shaft, several lateral adits, and several chambers below the reactor location are excavated to provide access at underground locations below the reacto... | 05/05/1998 |
| 5711635 | Apparatus for hazardous waste vitrification Apparatus (10) and a method for vitrifying hazardous waste includes a melting vessel (12) in which hazardous waste and any other necessary components for forming a glassy mixture upon heating are introduced for heating by a heater (38), and a metallic con... | 01/27/1998 |
| 5707179 | Method and apparaatus for curing concrete A method and apparatus for optimizing the curing of concrete poured under hostile ambient temperature conditions. The apparatus includes a liquid reservoir and pumping system and a number of spaced-apart tube segments overlaid into the forms for receiving... | 01/13/1998 |
| 5700107 | Method of soil remediation A method of remediating soil contaminated with inorganic and organic pollutants as disclosed. A method comprises treating the soil with a complexing agent capable of chelating the pollutants and a matrix-generating agent for authigenically generating with... | 12/23/1997 |
