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5944996 |
Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants
The separation of a contaminant from a substrate that carries the contaminant is disclosed. The process comprises contacting the substrate to a carbon dioxide fluid containing an amphiphilic...
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5935341 |
Method and apparatus for closed-coop pressure washing
A portable parts washer flows a washing agent over an object to remove any contaminants. The washing agent and contaminants flow into a basin mounted below the object. The washing agent is drawn...
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5928517 |
Water-soluble polymers for recovery of metals from solids
A process of selectively separating a target metal contained in a solid matrix from the solid matrix by contacting a solid matrix containing a target metal with an aqueous solution including a...
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5928434 |
Method of mitigating electrostatic charge during cleaning of electronic circuit boards
A method is provided for cleaning an electronic circuit board having first and second opposing surfaces. The method includes directing a stream of carbon dioxide particles against the first...
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5925192 |
Dry-cleaning of garments using gas-jet agitation
Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to...
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5909743 |
Automatic purge filtration system for a dishwasher
A dishwasher pump and automatic purge system which includes a wash impeller supported for rotation within a pump chamber wherein the pump chamber has a main outlet and a sample outlet port. Wash...
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5908040 |
Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste
A system for cleaning vessels that have been contaminated with oil field drilling and production waste materials such as oil well drilling fluid or hazardous waste using recycled wash water. As...
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5908041 |
Method for cleaning a photoresist developer spray stream nozzle
A method and apparatus for cleaning a spray stream nozzle employed in dispensing upon a photoexposed blanket photoresist layer formed over a semiconductor substrate a photoresist developer...
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5901368 |
Radiolysis-assisted decontamination process
A method for minimizing the radioactive waste produced by decontamination processes for water-cooled nuclear reactors. The method exposes the decontamination chemicals to the ionizing radiation...
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5894853 |
Cleaning method for removal of contaminants
A cleaning method whereby a cleaning liquid used for cleaning in one cleaning stage is mixed after the one cleaning stage with a cleaning liquid used for cleaning in a rear cleaning stage. The flow...
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5891257 |
Tool for removing protective encapsulants
A system for removing protective coatings from a circuit board assembly. The system includes a tool for removing protective coatings from a circuit board assembly. The tool has a flow head, which...
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5891347 |
Centrifugal filtration method and apparatus therefor
Centrifugal filtration capable of improving recovery of crystal in a baskey. The basket is so arranged that a central axis thereof is inclined with respect to a horizontal direction to obliqely...
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5888312 |
Cleaning method
An object to be cleaned is cleaned with an cleaning agent which mixes a base cleaning agent such as silicon-containing cleaning agent or an isoparaffin containing cleaning agent with a surfactant...
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5888311 |
Process for cleaning factory equipment with integrated prerinse
A process for cleaning processing equipment for beverages or foods including the steps of (a) pumping a cleaning solution from its holding tank through the processing equipment in the absence of...
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5882524 |
Treatment of oil-contaminated particulate materials
A closed loop process is shown for treating oil and saline contaminated particulate materials such as drilling cuttings such as are encountered in oil and gas well bore drilling operations. The...
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5882429 |
Method of soil remediation by concurrent removal of hydrocarbons and fixation of heavy metals
The invention disclosed relates to an improved solvent extraction/soil remediation process for the concurrent removal of hydrocarbon contaminants, and fixation of heavy metals. The improvements...
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5879471 |
Method for repositioning produce during washing
Produce, whether vegetable and/or fruit, is supported upon a basket suspended within a closed cabinet. Each of a plurality of nozzles disposed about the basket emits a droplet permeated cone of...
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5876511 |
Method for cleaning and rinsing containers
Beverage containers such as kegs are cleaned by pre-rinsing the containers and then cleaning the containers with a cleaning solution. Post-rinse of the containers is carried out in order to remove...
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5877027 |
Method for the analysis of impurity contents in silicon dioxide
An analytical method for the quantitative determination of the impurities in silicon dioxide by which trace amounts of hardly soluble impurities contained in silicon dioxide can be reliably...
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5876510 |
Process for cleaning articles
The invention relates to a process for cleaning one or more articles which includes the steps of: I) contacting the article(s) with a cleaning agent containing a) from 0.01 to 80 weight...
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5873944 |
Vacuum waste pipe cleaning
A method of and system for removing blockage from pipes in vacuum waste systems in which fouled pipes in the existing vacuum waste system are configured into a closed loop. A cleaning solution is...
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5873945 |
Method for recovering a volatile organic material consisting essentially of carbonyl compounds from solvent-in-water emulsions derived from paint overspray treatment and capture systems
A process for recovering quantities of carbonyl compound material from spent solvent-in-water emulsions derived from paint overspray treatment and capture systems in which the spent...
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5868940 |
Method for on-site remediation of contaminated natural resources and fabrication of construction products therefrom
Methods for on-site remediation of contaminated natural resources and fabrication of construction products therefrom. A mobile treatment facility is provided at the site of the contaminated natural...
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5865903 |
System and method for removing liquid applied to hollow containers
A liquid treatment system for hollow articles having an open end facing downwardly upon a moving conveyor belt includes a vacuum stripper tube connected to a blower for generating a suction force...
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5858107 |
Liquid carbon dioxide cleaning using jet edge sonic whistles at low temperature
A cleaning system and method utilizing sonic whistle agitation to enhance the soil removal and mass transport capacity of the liquid carbon dioxide at low process temperatures. Sonic whistles are...
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5855787 |
Process for producing a fresh wiping solution and for treating a used solution and apparatus for carrying out the process
A process for producing a fresh wiping solution, comprising at least 90% of water and additives, and for treating said solution once used by the inks of one or more intaglio printing machines,...
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5855690 |
Method of evaporation removal of oily substances from metallic articles
Oily substances applied over metallic articles such as aluminum parts have to be removed before brazing them. Their removal is made by heating the parts in an inexplosive gas atmosphere in a...
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5855792 |
Rinse water recycling method for semiconductor wafer processing equipment
Waste water from an apparatus that rinses particles from semiconductor wafers is collected in a tank. A pump sends waste water from the tank through a particle filter and onward to a supply inlet...
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5853494 |
Method for automatic washing of vehicles
A method of automatic washing of vehicles, wherein recirculation and reuse of a substantial proportion of the washing liquid takes place during the washing procedure proper and wherein a principle...
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5853961 |
Method of processing substrate and apparatus for processing substrate
A method of processing a substrate having the steps of placing a substrate for forming an LCD on a support, mounting a cover on the substrate in such a manner that a clearance is formed from at...
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5853489 |
Cleaning process
The present invention is directed to a process for cleaning a cleaning object, comprising the steps of: placing water and organic substances containing a nonionic surfactant composition having a...
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5851305 |
Washing apparatus and washing method
A washing apparatus includes a washing bath in which articles to be cleaned are washed. The washing bath contains a detergent of a kind containing a nonion surface active agent and a terpene-based...
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5849099 |
Method for removing coatings from the hulls of vessels using ultra-high pressure water
A method for removing surface coatings from the hull of a ship by focusing annular streams of ultra-high pressure water from a rotating nozzle having one or more orifices. The nozzle orifices have...
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5849101 |
Dishwasher cycle--initial cycles lower spray arm only
A method of washing objects in a dishwasher having upper and lower spray arms within a wash chamber and a sump filter. Wash liquid entering a sump from the wash chamber to be recirculated by a pump...
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5849100 |
Method for cleaning oily objects
A cleaning method for removing oils, grease, machining debris and like substances from machine parts and other objects includes a wash tank containing a wash solution, rinse tanks for rinsing the...
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5846336 |
Apparatus and method for conditioning a planarizing substrate used in mechanical and chemical-mechanical planarization of semiconductor wafers
An apparatus for chemically conditioning a surface of a planarizing substrate while a semiconductor wafer is planarized on the substrate. The conditioning apparatus has a conditioning solution...
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5843317 |
Recovery and reuse of anionic surfactants from aqueous solutions
Improved surfactant recovery upon ultrafiltration of a surfactant-containing aqueous solution can be obtained using a system comprising anionic surfactants.
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5836321 |
Process of recycling a water laden solvent which was used to purge a point supply line of a paint sprayer
A system is provided for recycling a water ladened solvent used for purging a paint supply line of a paint sprayer. The purged material including a mixture of water ladened solvent and paint is...
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5835865 |
Method and device for the disposal of a cation exchanger
A cation exchanger is loaded only with radioactive cations by repeatedly converting the non-bivalent, inactive cations into anionic complexes and flushing the complexes out of the cation exchanger....
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5833761 |
Method of cleaning an object including a cleaning step and a vapor drying step
An object to be cleaned is cleaned with an cleaning agent which mixes a base cleaning agent such as silicon-containing cleaning agent or an isoparaffin containing cleaning agent with a surfactant...
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5833756 |
Process and plant for decontaminating solid materials contaminated with organic pollutants
A process for decontaminating a solid material contaminated with an organic pollutant wherein the solid material contains grains with a particle size of up to 60 microns, which includes the steps...
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5830282 |
Continuous particle separation operation
Continuous removal of particulate surface contaminants, for example, from flat-rolled steel work product, is achieved free of unscheduled interruption by continuing control of surface cleaning...
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5827374 |
Process for integrated recycling of cleaning solution in industrial washing equipment
In an apparatus for washing automotive, aviation, marine and other general parts, equipment or articles with a liquid cleaning solution, there is provided a process for integrated recycling of the...
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5827373 |
Water-and chemical recycling
Process and equipment for partial but substantial closing of the water and chemical cycle at, inter alia, automatic automobile washing machines. The wash water, which, when used, becomes loaded...
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5822818 |
Solvent resupply method for use with a carbon dioxide cleaning system
A method of replenishing liquid carbon dioxide solvent in a liquid carbon dioxide dry cleaning system or other dense phase carbon dioxide cleaning system. The method uses dry-ice or solid carbon...
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5824161 |
Device and method for handling injurious materials
A method and device for removing harmful materials, e.g. asbestos, from areas such as ceilings that do not present an edge over which a container may be secured. The device comprises a flexible...
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5824159 |
Process for treating surface stored contaminated solids
Apparatus and method for treating solids contaminated by alkaline earth metal scales which have naturally occurring radioactive material entrained throughout the scale. The equipment and method of...
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5820690 |
Cleaning processes using cleaners exhibiting cloud point behavior
A cleaning process to remove soil using cleaners exhibiting cloud point behavior (i.e., have a cloud point) and/or in which the cleaner can be recycled is disclosed. The cleaning mixture can be an...
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5820694 |
Produce washer and washing method
Produce, whether vegetable and/or fruit, is supported upon a screen basket (18) suspended within a closed cabinet (12). Each of a plurality of nozzles (334) disposed about the basket (18) emits a...
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5820689 |
Wet chemical treatment system and method for cleaning such system
A wet chemical treatment system for processing semiconductor wafers that does not have the problem of cracking or other damages occurring in the system during a cleaning process where a strong acid...
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