Matches 1 - 50 out of 95 1 2 >
Match Document Document Title
7558044 Static electricity eliminator  
An apparatus for reducing static electricity includes an ionizer that generates ions for neutralizing static electricity, a blower that produces a current of air for moving the ions to a desired...
7097694 High performance, high efficiency filter  
A high performance, high efficiency filter is provided by a multi-stage filter having combinations of tribologically different fibers, nanofibers, and layering.
7004995 Triboelectric charging of wovens and knitted fabrics  
A method for the utilization of a woven or loop-formingly knitted fabric which acquires an electrostatic charge as a result of a specific treatment for filtering airborne, dusty allergens such as...
6821320 Dust collector for collecting fine dust in air  
A dust collector for collecting fine dust in air and for cleaning the air is provided. A first friction disk is produced from a first substance. A second friction disk is produced from a second...
6800106 Thermochromic filter apparatus for computer  
A filter apparatus includes a filter panel having inner and outer surfaces and a configuration for completely covering a computer housing ventilation opening. The filter apparatus includes an...
6623548 Filter materials and methods for the production thereof  
An electrostatically charged filter material including a blend of polypropylene fibres and one selected from the group consisting of: halogen free acrylic fibres; polyvinyl chloride fibers or a...
6572684 Chargeable tow, laminates using the same and processed goods therefrom  
To provide chargeable tow and a laminate thereof, which can be produced with no restriction by the production or processing method, and without troubles such as twining on a roll or single thread...
6547860 Process for manufacture of triboelectrically charged nonwovens  
A process for the manufacture of a triboelectrically charged nonwoven, wherein a fiber blend made of polyacrylnitrile fibers with a titer of ≦1.7 dtex and of polyolefine fibers with a titer of...
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...
6328788 Triboelectric air filter  
The invention concerns a triboelectric air filter consisting essentially of a mixture of polypropylene fibers with polymethaphenylene isophatalamide fibers.
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...
6231646 Paint overspray exhaust air filter  
A paint overspray exhaust air filter for air laden with liquid paint overspray particulates being exhausted from an overspray paint booth includes an electrostatic charged or electret media used in...
6224652 Method and device for the agglomeration of particles in a gaseous flow  
This invention relates to a method and a device for agglomerating particles in a gaseous flow through an acoustical agglomeration chamber (3). According to the invention a portion of the flow at...
6171375 Vacuum cleaner exhaust filter with ion generation stage  
A vacuum cleaner exhaust filter assembly includes a main HEPA exhaust filter, and an ion generation stage to add ions to the air. The ion generation stage preferably is a polypropylene mesh which...
6080225 Process and device for separating liquid drops from a gas stream  
6074458 Method and apparatus for separation of unburned carbon from flyash  
Apparatus and method for separating carbon particles from flyash includes one of increasing a relative humidity of the flyash or decreasing the relative humidity of the flyash to within an optimum...
5989320 Frameless electrostatic air filter with internal support grill  
A frameless electrostatic air filter used in heating and air conditioning systems includes a plurality of filter media layers and an internal support grill and has no external support grill or...
5944875 Triboelectric separator with mixing chamber and pre-separator  
A triboelectrostatic separation apparatus includes a mixing chamber having opposed first and second charging ports, a separator having a separation chamber, first and second electrodes, and a...
5906677 Electrostatic supercharger screen  
An electrostatic supercharger screen (10) is within an air flow duct (12) in front of a standard air filter (14), between a furnace/cooling unit (16) and an air vent grill (18) in a wall (20) of a...
5888276 Reduction of electrostatic charge in waste bottle  
An apparatus for reducing electrostatic charge of particles in a waste container. In one embodiment the waste container is coated with a liquid having a viscosity sufficient to prevent...
5888274 Triboelectric property modification and selection of fabrics for filtration applications  
A method is provided for specifying and altering the electrical properties of fibers and fabrics. This allows the prescription of filter media prepared from these constituents for consistently...
5885330 Separation system and method of unburned carbon in flyash from a coal-fired power plant  
An apparatus and method for reducing the amount of unburned carbon in raw flyash, wherein raw flyash containing unburned carbon is introduced into the tribocharger, the tribocharger producing...
5728199 Insert for air flow ducts  
An insert for air flow ducts includes a band (10) of a semi-stiff, although flexible character, a plurality of interspaced interflanges (11) along the band and spaced edge flanges (14) which are...
5725645 Vent assemblies for waste disposal bags  
A vent assembly useful for venting bags containing radioactive waste material includes a base plate with a chamber projecting therefrom and a cap plate which has a center portion that snap fits...
5716431 Device for separating extremely fine particles from air  
A particle separating arrangement includes a filter tube (1) that is made of electrostatically chargeable fibres, for instance electrete fibres, and through which an axial air stream can pass...
5709735 High stiffness nonwoven filter medium  
A filter medium having high stiffness is provided. The filter is a nonwoven web of conjugate fibers which has a Frazier permeability above 200 CFM, an NaCl efficiency above 75 percent, a Gurley...
5690719 Removable filter for a forced air duct grill  
A filter apparatus for mounting over an opening at an end of a forced air system duct has a filter frame with sidewalls between open front and back ends and a channel which opens inwardly of the...
5681374 Device for the separation of microscopic particles out of air  
A device for the removal of microscopic particles from air includes a tube which in a certain cross-section has a replaceable, suitably ionizing particle separation unit (4) with a multitude of...
5571300 Frame and pad filter system  
A filter apparatus for a reusable one piece filter frame housing and a filter media for use in a forced air ventilating system. The one piece filter frame housing having integrally formed fasteners...
5562755 Process for the treatment of langbeinite and anhydrite containing kieserite concentrates  
A process for after-purifying a kieserite mixture pre-concentrated electrostatically across a number of stages is characterized in that the outside air used in the after purification stage is...
5525145 Filtering apparatus for a forced air duct grill  
A filter apparatus has a rigid housing surrounding a piece of preferably self charging electrostatic filter material and having a preferably magnetic attachment device for mounting the filter...
5492677 Contaminated air purifying apparatus  
A contaminated air purifying apparatus capable of decreasing particles such as dust floating in air, soot produced by a combustion engine and the like and air pollutants such as nitrogen oxides...
5478377 Filter for a respiratory device  
Disclosed is a filter for a reduced threat chemical/biological protective spiratory device which includes a housing having an air intake orifice and an air exit orifice and which encloses a...
5419953 Multilayer composite air filtration media  
A composite filter media is formed of a plurality of layers. A central layer of electrostatically charged material formed of a carded mixture of polyolefin fibers such as polypropylene and...
5336299 Multi-loading electrostatic air filter and method of filtration  
A multi-layered electrostatic filter and method of filtration incorporating an insulated poly glass charging element which is a grid of sufficient width to allow the air flow through the charging...
5288305 Method for charging particles  
In order to enhance the efficiency of charging in a friction charger, it is proposed to precharge the particles before the first collision with the walls by making use of the photoeffect. This is...
5240479 Pleated filter media having a continuous bead of adhesive between layers of filtering material  
A pleatable filter media, suitable for a use in a respirator for humans, is disclosed comprising a filter material including a meltblown polymeric material, such as polypropylene. A laminate...
5185015 Filter apparatus  
Filter apparatus for removing contaminants from air includes a housing having an inlet opening and an outlet opening, and a fan for maintaining a flow of air through the housing from the inlet...
5167677 Variable air filter system for convection and ventilation air flows  
A variable air filter system is described for convection and ventilation air flows, filter elements being introduced into the air flow in order to clean or purify the room air. To obtain an...
5037455 Air filter  
An air filter assembly includes three layers of alternating layers of woven polypropylene and polyurethane sandwiched together in a removable plastic frame. The polypropylene layers are woven in a...
4902306 Dual-dipole electrostatic air filter  
A filter assembly (10) for removing particulate matter from air forced therethrough comprises two pairs of oppositely charged woven electrostatic filtering material. Each pair of electrostatic...
4880448 Double filter insert for an air cleaning apparatus  
A double filter insert for an air cleaning apparatus having an ionizer, consisting of a sheet-like pre-filter of polyester for retaining coarse dust particles and of an also sheet-like...
4518402 Reuseable air filter system  
A reusable air filter system for providing permanent, self-charging, electrostatic filter stages that are easily cleanable for re-use. The filter system may be used on air conditioners, furnaces,...
4501598 Gas borne particle filtering method  
A method for filtering gas borne particles using a filter medium (13) in contact with a screen (14) composed of polymeric strands (30, 31) is described. The method is characterized by the fact that...
4422824 Germicidal ceiling fan blade  
A fan blade, preferably for use with a ceiling fan, is constructed hollow with a top and bottom located so as to provide an air space sufficiently large enough to house one or more germicidal...
4378980 Gas borne particle filtering apparatus  
A gas borne particle filtering apparatus having a filter medium (13) with inlet and outlet openings (11, 12) in a staggered sawtooth cross-sectional configuration (140, 141) in a casing (10) for...
4229187 Movable, continuously changing, self-charging electrostatic filter  
A non-woven, relatively thin filter media is formed of fine denier fibers wherein the media exhibits the characteristics of developing an electrostatic charge in the presence of a substantially dry...
4115082 Air cleaner assembly  
An air cleaner assembly of the flow through type has a central element of open cell foam rubber, such as foam polyurethane, two series of rigid thermoplastic rods sandwiching the central element,...
4066724 Method for collecting industrial vapors and particulate matter  
The vapor and particulate matter emitting equipment is enclosed within walls of an electrostatically charged clear plastic sheet material. The enclosures are connected at their tops to hoods which...
4052983 Nasal filter  
A replacable, sectionalized filter cartridge is received within a casing which is adapted to be inserted and removed from the nasal passage. The filter cartridge is preferably formed with two...
Matches 1 - 50 out of 95 1 2 >