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3111results about "Fouling prevention" patented technology
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Surface topographies for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Apparatus for use with hydrogen radicals and method of using same
PendingUS20190348261A1To offer comfortExtend your lifeFouling preventionElectric discharge tubesEnvironmental engineeringChemical engineering
A system and method suitable for removing both carbon-based contaminants and oxygen-based contaminants from a substrate within a single process chamber are disclosed.
Owner:ASM IP HLDG BV
Surface topographies for non-toxic bioadhesion control
An article has a surface topography for resisting bioadhesion of organisms and includes a base article having a surface. A composition of the surface includes a polymer. The surface has a topography comprising a pattern defined by a plurality of spaced apart features attached to or projected into the base article. The plurality of features each have at least one microscale dimension and at least one neighboring feature having a substantially different geometry. An average feature spacing between adjacent ones of the features is between 10 μm and 100 μm in at least a portion of the surface. The surface topography can be numerically represented using at least one sinusoidal function. In one embodiment, the surface can comprise a coating layer disposed on the base article.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Method and apparatus for Anti-biofouling of a protected surface in liquid environments
ActiveUS20130048877A1Avoid biological contaminationReduce and eliminate needWater/sewage treatment by substance additionDeodrantsBiofoulingOptoelectronics
A system includes a UV light source and an optical medium coupled to receive UV light from the UV light source. The optical medium is configured to emit UV light proximate to a surface to be protected from biofouling. A method corresponds to the system.
Owner:RAYTHEON CO
Articles having low wettability and methods for making
InactiveUS20070031639A1Low liquid wettabilityAnodisationMolten spray coatingEngineeringContact angle
Owner:GENERAL ELECTRIC CO
Articles having low wettability and high light transmission
InactiveUS20070231542A1High light transmittanceIncrease resistanceFouling preventionRecord information storageElectromagnetic radiationLight transmission
An article comprising a surface portion is provided. The surface portion has a plurality of primary features, and the primary features have a height dimension in the range from about I micron to about 500 microns, an aspect ratio in the range from about 0.5 to about 10, and a spacing dimension in the range from about 0.5 to about 50 feature width units. The surface portion comprising the features has a wettability of the surface sufficient to generate, with a reference fluid, a static contact angle of greater than about 120 degrees and a total transmission of at least about 70% in the visible range of electromagnetic radiation.
Owner:GENERAL ELECTRIC CO
Anti-fingerprint coating construction
InactiveUS20060110537A1Easy to cleanImprove anti-corrosion performanceMaterial nanotechnologyFouling preventionNanometreAntibacterial property
An anti-fingerprint coating construction (23) for application to a surface of a substrate (21) includes a layer formed of a material selected from the group consisting of a hydrophobic nano-composite material, an oleophobic nano-composite material, and a super-amphiphobic nano-composite material. When the anti-fingerprint coating construction is employed on a metal surface or a nonmetal surface, sweat or / and grease on fingers of a user is not liable to be adhered to the surface. Therefore a fingerprint of the user is prevented from being imprinted on the surface, and the surface can remain clean and aesthetically pleasing. Because the anti-fingerprint coating construction is easy to clean, the anti-fingerprint coating construction has good anti-corrosion and antibacterial properties. The anti-fingerprint coating construction contains no chromium, and therefore does not need to be processed by an acid or alkali solution. This makes the anti-fingerprint coating construction environmentally friendly.
Owner:HON HAI PRECISION IND CO LTD
Self-cleaning lotus effect surfaces having antimicrobial properties
A self-cleaning or lotus-effect surface that has antimicrobial properties, commercial products comprising such a surface, and uses thereof. A process for the production of an antimicrobial self-cleaning or lotus-effect surface in which one or more antimicrobial polymer(s) is secured to a surface-coating system for securing structure-formers to generate a self-cleaning surface. This method lastingly binds antimicrobial polymers to the self-cleaning surface. Commercial products comprising an antimicrobial self-cleaning or lotus-effect surface.
Owner:CREAVIS GES FUER TECH
Surface topography for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Article coated with an ultra high hydrophobic film and process for obtaining same
InactiveUS20070141114A1Low energy surfaceDurable propertyFouling preventionPharmaceutical containersPolymer scienceNanoparticle
Owner:ESSILOR INT CIE GEN DOPTIQUE
Liquid-Impregnated Surfaces, Methods of Making, and Devices Incorporating the Same
InactiveUS20130032316A1Improve skidReduce resistanceFouling preventionDe-icing equipmentsNon wettingFrost
The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.
Owner:MASSACHUSETTS INST OF TECH
Processing compositions and method of forming the same
ActiveUS20060110542A1Increased durabilityImprove conditionsPigmenting treatmentFouling preventionSilica particleAdditive ingredient
A method for processing compositions, compositions obtained by such a process and methods of use are disclosed for forming a detachable and renewable protective coating which is substantially transparent. The inventive process compositions are produced by making a highly concentrated dispersion of hydrophobically modified silica particles in the presence of an optional, yet preferable, disilazane derivative under high shear conditions. These process compositions are intended to be further diluted to final treatment compositions, optionally while adding other functional ingredients.
Owner:EVONIK OPERATIONS GMBH
Surfaces rendered self-cleaning by hydrophobic structures, and process for their production
InactiveUS6852389B2Effectively self-cleaningSimple processNanotechSpecial ornamental structuresFissured structureFumed silica
A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure containing elevations and depressions, which comprises a surface having structure-forming particles, which are formed of hydrophobic, fumed silica, adhered thereto by way of fixative particles applied to the surface, whereby the structure-forming particles and the fixative particles have elevations and depressions ranging in dimensions of 1 to 1000 nm and the particles themselves having an average size of less than 50 μm, the particles providing said surface structure of elevations and depressions, wherein, by incipient melting of the fixative particles, only partial melting of the fixative particles occurs which is sufficient to bond the structure forming particles without substantial wetting of the particles by the fixative particles to said surface while retaining, the fissured structure of the structure-forming particles in the nanometer range.
Owner:DEGUSSA AG
Process for producing detachable dirt- and water-repellent surface coatings
ActiveUS7083828B2Good removal effectSimple wayFouling preventionSolid waste managementWaxSurface structure
Process for producing detachable dirt- and water-repellent surface coatings on articles, wherein during the coating process, hydrophobic particles are applied to the surface of the articles, thus generating a surface structure with elevations on that surface of the articles that has dirt- and water-repellent properties, which comprises suspending the hydrophobic particles in a solution of a silicone wax in a highly volatile siloxane, and applying this suspension to at least one surface of an article, and then removing the highly volatile siloxane.
Owner:EVONIK DEGUSSA GMBH
Methods for prevention of surface adsorption of biological materials to capillary walls in microchannels
InactiveUS7252928B1Inhibit bindingPrevent and reduce adsorptionNanotechElectrolysis componentsSilica particleLipid formation
Methods for reducing surface adsorption of biological materials to the walls of microfluidic conduits in microscale devices are provided. In an example of the methods, one or more colloidal-size particles, such as colloidal silica particles, are flowed in a fluid within the microfluidic conduit in the presence of one or more adherent biological materials (such as one or more proteins, cells, carbohydrates, nucleic acids, lipids and the like) to adsorb to the materials and prevent them from binding to the capillary walls of the microfluidic conduit. Other adsorption inhibition agents such as detergents and nonaqueous solvents can be used alone or in combination with colloidal particles to reduce surface adsorption in microfluidic conduits.
Owner:CAPLIPER LIFE SCI INC
Process for the excavation of buried waste
ActiveUS7114880B2Preventing particulate emissionMachines/dredgers working methodsFouling preventionRadioactive contaminationEnvironmental engineering
Disclosed is a method of excavating large quantities of non-homogenous radioactive contaminated waste, desirably without releasing radioactive contaminated dust or exposing personnel to its hazards. The excavation of buried waste is performed in the presence of a suppression fluid that coats the waste and captures and retains particles so that they do not become airborne. Use of this suppression fluid technique allows larger mechanized excavation equipment to be used to perform the work. This keeps workers away from the waste. The waste is excavated and placed inside large steel boxes, such as a roll-off box, by the excavator. The suppression fluid covers the waste in the boxes and prevents particulate emissions from the waste.
Owner:CARTER JR ERNEST E
Surfaces which are self-cleaning by hydrophobic structures, and a process for their production
A process for producing self-cleaning surfaces, in which an at least partially hydrophobic, surface structure is formed by securing particles on a polymer surface, which comprises applying, to the polymer surface, at least one solvent which comprises the particles and which solvates the polymer surface, and securing at least part of the particles to the polymer surface by removing the solvent; self-cleaning surfaces obtained by the process; and objects containing self-cleaning surfaces obtained by the process.
Owner:CREAVIS GES FUER TECH
Mobile on-wing engine washing and water reclamation system
ActiveUS20060219269A1Frequent cleaningImpact availabilityFouling preventionFinal product manufactureTreatment systemWater reclamation
A system for on-wing engine washing and water reclamation is provided. The system has at least one spray device for introducing a cleaning liquid containing at least water into the engine while the engine is being operated, and an effluent trough for collecting the cleaning liquid from an exit end or underneath side of the engine. In a preferred embodiment, a source of the cleaning liquid and the effluent trough are located on a mobile unit. Further, a treatment system for treating the collected cleaning liquid is also located on a mobile unit.
Owner:ECOSERVICES
Sterile device and method for producing same
A sterile device immersed in a sterile buffer and a method for providing same. The sterile device may be a medical device such as a biosensor having a biomolecule as a sensing element such as, for example, a glucose oxidase enzyme. The buffer may be a bicarbonate solution. Both the device and the buffer may be packaged and stored over long term while maintaining sterilization. The sterilization method may comprise a combination of gaseous, liquid and light sterilization.
Owner:MEDTRONIC MIMIMED INC
Prevention of surface adsorption in microchannels by application of electric current during pressure-induced flow
InactiveUS7150814B1Reduce and prevent any materialMinimize movementCellsFatty/oily/floating substances removal devicesEngineeringAlternating current
Methods and apparatus for reducing adsorption in microscale devices are provided. In the methods and apparatus, an electrical current such as an alternating current is applied to materials under pressure-induced flow. Integrated systems for simultaneous control of current and pressure in a channel are also provided.
Owner:CAPLIPER LIFE SCI INC
Ultrahydrophobic substrates
ActiveUS20070026193A1Improve surface roughnessImprove surface hydrophobicityFouling preventionLotus effect fibresSurface roughnessEngineering
Disclosed is a process for modification of a substrate so as to form an ultrahydrophobic surface on the substrate. Also disclosed are surface-modified substrates that can be formed according to the disclosed processes. The process includes attachment of a multitude of nano- and / or submicron-sized structures to a surface to provide increased surface roughness. In addition, the process includes grafting a hydrophobic material to the surface in order to decrease the surface energy and decrease wettability of the surface. The combination of increase surface roughness and decreased surface energy can provide an ultrahydrophobic surface on the treated substrate.
Owner:CLEMSON UNIVERSITY
Glass ceramic and metal substrates with a self-cleaning surface, method for the production and use thereof
InactiveUS6872441B2Improve self-cleaningExcellent abrasion resistanceFouling preventionPretreated surfacesRough surfaceGlass-ceramic
The invention relates to glass, ceramic and metal substrates with at least one self-cleaning surface, comprising a layer with a micro-rough surface structure which is arranged on the substrate and made at least partly hydrophobic. The layer contains a glass flux and structure-forming particles with a mean particle diameter within the 0.1 to 50 μm range; the glass flux and structure-forming particles are present in a volume ratio within the 0.1 to 5 range, and the micro-rough surface structure has a ratio of mean profile height to mean distance between adjacent profile tips within the 0.3 to 10 range.To produce the subject of the invention the substrate is coated with a composition containing a glass flux and structure-forming particles, and the layer is burnt in and made hydrophobic.
Owner:FERRO GMBH
Liquid-impregnated surfaces, methods of making, and devices incorporating the same
ActiveUS8574704B2Reduce viscous dragMinimizes accumulationLayered productsDe-icing equipmentsNon wettingFrost
The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust.
Owner:MASSACHUSETTS INST OF TECH
Method and Apparatus for Removing Biofouling From a Protected Surface in a Liquid Environment
ActiveUS20140196745A1Easy to disassembleReduce and eliminate needLiquid processingReconditioning/cleaning record carriersOptoelectronicsBiofouling
A system includes a UV light source and an optical medium coupled to receive UV light from the UV light source. The optical medium is configured to emit UV light proximate to a surface from which biofouling is to be removed once the biofouling has adhered to the protected surface. A method corresponds to the system.
Owner:RAYTHEON CO
Microfluidic device with ultraphobic surfaces
ActiveUS6923216B2Improve equipment efficiencyReduce resistanceFouling preventionConveyorsEngineeringVolumetric Mass Density
A microfluidic device having durable ultraphobic fluid contact surfaces in the fluid flow channels of the device. The ultraphobic surface generally includes a substrate portion with a multiplicity of projecting regularly shaped microscale or nanoscale asperities disposed in a regular array so that the surface has a predetermined contact line density equal to or greater than a critical contact line density, and so that the ratio of the cross-sectional dimension of the asperities to the spacing dimension of the asperities is less than or equal to 0.1.
Owner:ENTEGRIS INC
Mobile Operations Chassis with Controlled Magnetic Attraction to Ferrous Surfaces
InactiveUS20140230711A1Reduce frictionFacilitate or reduce (or eliminate) clinging forceAmphibious vehiclesVessel cleaningMarine engineeringActuator
A chassis clings to a ship hull or other ferrous surface by a magnet that moves toward or away from the surface to adjust the magnet air gap and thus the attractive force. The magnet(s) can be the only clinging force or used with other sources such as a suction chamber or fluid jet drive. An internal magnet on a crank mechanism can pivot around a wheel rotation axis inside a wheel body having a non-ferrous traction surface or tire. The magnet gap is least at an angle perpendicular to the surface on which the wheel rests, and larger at an angle oblique to that, for varying the attractive force to two or more levels. The vehicle can be an autonomous hull maintenance device with sensors, controllers and actuators to sense, measure and clean away fouling.
Owner:SEAROBOTICS CORP
Surface topographies for non-toxic bioadhesion control
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Hydrophobic surface with geometric roughness pattern
A hydrophobic surface comprising a substrate and a roughened surface structure oriented on the substrate material is provided. The substrate comprises a surface, which is at least partially hydrophobic with a contact angle to liquid of 90° or greater. The roughened surface structure comprises a plurality of asperities arranged in a geometric pattern according to a roughness factor, wherein the roughness factor is characterized by a packing parameter p that equals the fraction of the surface area of the substrate covered by the asperities. The p parameter has a value from between about 0.5 to about 1.
Owner:THE OHIO STATES UNIV
Surfaces rendered self-cleaning by hydrophobic structures, and process for their production
InactiveUS20020150725A1Pretreated surfacesRecord information storageSurface structureMaterials science
A self-cleaning surface which has an artificial, at least partially hydrophobic, surface structure containing elevations and depressions, wherein the elevations and depressions are formed by structure-forming particles and fixative particles applied to the surface, wherein the fixative particles act to secure the structure-forming particles to the surface and the fixative particles are also secured to the surface; and a process for making such a surface.
Owner:DEGUSSA AG
Recirculating exhaust system
ActiveUS20090264060A1Reduce net energy lossDomestic stoves or rangesRecuperative heat exchangersModularityEngineering
Systems, devices and methods provide energy recover, modular systems to build and revise commercial kitchen services, closed circuit exhaust, and high efficiency capture and containment of fumes from cooking processes.
Owner:HALTON GROUP LTD
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