Matches 1 - 50 out of 66 1 2 >
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7553353 System for treating contaminated gas  
A system for decontaminating a gas is provided. The system includes: a passageway containing at least one set of two or three electrodes. If the set contains three electrodes, it has two outer...
7531141 Mobile air decontamination and purification unit  
A variety of transportable air treatment system improvements are described. In one aspect of the invention, the system is designed to significantly reduce the noise generated during operation. In...
7510600 Gas purifying apparatus  
A gas purifying apparatus includes an adsorption member (e.g., a honeycomb structural body) that adsorbs particulate matter contained in the gas by the action of an electric field. The apparatus...
7497889 Exhaust emission control device  
Arranged within a cylindrical housing are capturing cells each including a cylindrical outer electrode capable of capturing particulates and an inner electrode inserted into the outer electrode and...
7367997 Electronic enclosure filter for very small spaces  
The present invention is directed to an improved electronic enclosure filter for very small spaces, such as small disk drives. The filter includes an exposed electrostatic layer that functions to...
7316734 Volatile organic compound treatment apparatus  
A volatile organic compound treatment apparatus including an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes,...
7258729 Electronic bi-polar electrostatic air cleaner  
An electro-mechanical electrostatic air cleaner that combines a low air resistance dielectric fibrous filter material positioned between and electrically charged by two electrically resistant...
7160363 Electrostatic filter construction  
This publication discloses an electrostatic filter construction, which includes electrodes connected to a first electrical potential, second electrodes, which are electrically insulated from the...
7115151 High efficiency particulate air rated vacuum bag media and an associated method of production  
A vacuum bag media and associated method of production, which includes a first layer that includes an expanded polytetrafluoroethylene membrane and at least one second layer that includes a first...
7101423 Respiratory air filter  
A respiratory filter includes an air-permeable sleeve and at least one filter layer that is arranged in the sleeve and contains activated carbon. The activated carbon contained in the filter layers...
7025798 Tabletop-type air cleaner  
A personal tabletop-type air cleaner is provided which is user-friendly and can improve smoke sucking efficiency in a simple configuration. The disclosed personal tabletop-type air cleaner has a...
6984259 Air disinfection apparatus  
An air purification and disinfection apparatus incorporates an air inlet filter ( 1 ) spanning the intake of the apparatus, an ultraviolet light source ( 2 ) for treating the air within a chamber (...
6872233 High efficiency particulate air rated vacuum bag media and an associated method of production  
A vacuum bag media and associated method of production, which includes a first layer that includes an expanded polytetrafluoroethylene membrane and at least one second layer that includes a first...
6827764 Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers  
A filter element that comprises a porous molded web 10 ′ that contains thermally bonded staple fibers 12 and non-thermally bonded electrically charged microfibers 14 . The molded web is...
6808548 Three component filtration material  
A filter material comprising a blend of at least three types of fibers: (a) polypropylene fibers (b) polymethaphenylene isophtalamide fibers and (c) fibers of a third type selected from the group...
6793717 Apparatus for keeping contamination away from a mask during exposure with light  
The present invention includes a filtered mask enclosure having an exterior portion and interior regions within the exterior portion such that the interior regions have a filtering region and a...
6793715 Equipment air filter  
The invention provides a filter that can be cut-to-fit or deformed to fit a variety of differently shaped and sized intakes. The invention also provides a filter kit that allows a user to create a...
6733556 Antibacterial/antiviral filtering device for ventilation systems  
In a ventilation system, such as anaesthesia machines or ventilators for intensive care, provided with a hosed directed to patient, a breathable gas supplying tube, an exhaustion tube and an...
6572685 Air filter assembly having an electrostatically charged filter material with varying porosity  
An air filter assembly includes a filter media that is electrostatically charged. The filter media has a first porosity at the inlet side and a second porosity at the outlet side. An electrostatic...
6527834 Filter for gaseous media  
A filter made of nonwoven fabric, paper or the like for gaseous media, having an electrically conductive coating made of a conductive substance of pulverizable materials, in particular from...
6419729 Filter assemblies with adhesive attachment systems  
Filter assemblies with adhesive attachment systems are provided. In one embodiment, a filter assembly includes a porous filter member and an adhesive disposed on a reinforcement scrim adhesively...
6375721 Ionization filter for purifying air  
The invention relates to an ionization filter for purifying air that is enriched with dust particles and other inorganic and organic pollutants. The filter has at least one electrically charged...
6372004 High efficiency depth filter and methods of forming the same  
A composite filter for removing particulates entrained in a gas has stack of at least two non-pre-bonded tiers of filter material which are bonded together to form a unitary stratified structure....
6296691 Multi-functional molded filter for removing contaminants from an enclosure  
The present invention is an improved molded filter which performs multiple filtration functions within an enclosed environment, such as within a computer hard disk drive. In a first embodiment, the...
5882383 Gas drying apparatus  
Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the...
5847514 Apparatus for generating negative ions with a lid and a casing  
An apparatus for generating negative ions includes two casings which are coupled each other and respectively have an outer thread on one end thereof, a lid which is fastened to the coupled casings,...
5837035 Method and apparatus for electrostatically precipitating impurities, such as suspended matter or the like, from a gas flow  
The present invention relates to a method and an apparatus for electrostatically precipitating suspended matter from a gas flow, wherein a precipitation electrode which is flown through by the gas...
5792242 Electrostatic fibrous filter web  
There is provided a nonwoven electret fiber filter formed with a nonwoven web of electret fibers needle-punched to an open scrim support. The scrim support material has individual discrete open...
5759239 Air purifier  
An air purifier including a housing which has two air intake passages at two lateral sides and an induced-draft fan in an air accumulation chamber between the air intake passages, a plurality of...
5753013 Gas drying apparatus and method  
Apparatus for drying flowing gas includes a generally cylindrical vessel having a gas inlet and a gas outlet, two perforated plates of different metals in contact with each other transverse the...
5741352 Air cleaner  
An attractive portable air cleaner effectively purifies air in a room or office for added comfort and a healthier environment. Instead of using expensive custom-made filters, the air cleaner uses...
5667562 Spunbond vacuum cleaner webs  
There is provided a vacuum cleaner filter medium which is a nonwoven spunbond web of conjugate spunbond fibers. The web has a Frazier permeability of at least 250 CFM, an NaCI efficiency of at...
5647890 Filter apparatus with induced voltage electrode and method  
A clog-resistant filter and method for extracting fine particulate contaminants, such as smoke, from a gaseous fluid stream, such as air, uses an induced voltage electrode to efficiently capture...
5593476 Method and apparatus for use in electronically enhanced air filtration  
A high efficiency air filtration method and apparatus utilizes a fibrous filter medium that is polarized by a high potential difference which exists between two electrodes. The electrodes include...
5549735 Electrostatic fibrous filter  
The particle collection efficiency of a fibrous filter is significantly increased by imposing a high voltage potential on electrodes placed on either side of the filter. This creates a strong...
5540756 Electrostatic filter and method of filtering dust  
An electrostatic filter of a combination of a layer of filter material having electrostatic properties and a layer of filter medium without electrostatic properties. The medium is a lofted material...
5529613 Air ionization device  
Ionization apparatus including a housing, a high voltage source having a high voltage terminal and a ground return terminal, an ionization electrode inside the housing electrically connected to the...
5512086 High-efficiency air filtering apparatus  
A high-efficiency air filtering apparatus for cleaning and circulating air in a closed room is in the shape of a vertical cylinder and includes a semi-cylindrical housing and a semi-cylindrical...
5484472 Miniature air purifier  
A small, battery-powered air purifier can be clipped to a wearer's front shirt pocket or worn suspended from a cord about the wearer's neck. The device includes a housing containing a compact...
5474599 Apparatus for electrostatically cleaning particulates from air  
An electrostatic air cleaner is disclosed for use in removing particulate matter from moving streams of air. A high voltage ionizer is used as a corona source to ionize the particulate matter as it...
5405434 Electrostatic particle filtration  
An on board electrostatic filter for a vacuum cleaner is disclosed. The filter includes a pair of conductive filaments insulated from one another and disposed close together in a substantially...
5403383 Safe ionizing field electrically enhanced filter and process for safely ionizing a field of an electrically enhanced filter  
An electrostatically stimulated air filter and process, contemplates a housing having an fluid intake and a fluid exhaust; a upstream electrode, disposed downstream of the fluid intake, for...
5364458 Adjustable air filtering device  
An adjustable filter uses an eight member frame construction to provide a wide range of filter sizes. A panel for encasing one or more layers of filtering materials within the frame is formed from...
5348571 Apparatus for dedusting a gas at high temperature  
The apparatus for dedusting a gas by electrostatic precipitation includes an advantageously steel housing and a plurality of discharge electrodes and collecting electrodes arranged in the housing....
5330559 Method and apparatus for electrostatically cleaning particulates from air  
An electrostatic air cleaner is disclosed along with a method for removing particulate matter from moving streams of air. A high voltage ionizer is used as a corona source to ionize the particulate...
5290343 Electrostatic precipitator machine for charging dust particles contained in air and capturing dust particles with coulomb force  
A first recess for detachably mounting an ionizer therethrough is formed to oppose a dust-collecting air suction side of a precipitator machine body. The ionizer includes an ionizing wire unit...
4954320 Reactive bed plasma air purification  
The Reactive Bed Plasma is a novel air purification and material processing evice which may efficiently treat both toxic chemicals and hazardous aerosols. The Reactive Bed Plasma device embodies an...
4898105 Filter device  
Filter device for removing entrained fine solid particles from a gas stream, comprising a charging system (12) and an electrified granular filter (11) downstream of the charging system which is...
4871515 Electrostatic filter  
The invention provides an electrostatic particle filter in the case of which the collecting electrode is structured in order to make possible a reliable separation of the particles from the gases....
4654054 Apparatus for removing respirable aerosols from air  
An apparatus for removing respirable aerosols (typically within the size range of about 0.1 to about 2 microns in diameter) from air comprises a housing and a chamber removably coupled to the...
Matches 1 - 50 out of 66 1 2 >