Matches 251 - 300 out of 565 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
5395411 Filter for air cleaning  
An air cleaning filter comprising a layer (A) of water-repellent fiber and a layer (B) in which fiber bundles comprising aggregates of water-absorbent fibers are arranged. Layer (B) has an air...
5393601 Non-woven solidified by means of a melt binder  
A non-woven solidified by means of a melt binder is described, which is based on supporting aramid fibers and on binding fibers made of thermoplastic aramids whose melting point is below the...
5368734 Triboelectric filtration material  
An electrically charged air filter which comprises a blend of clean expanded porous polytetrafluoroethylene fibers and clean polyamide fibers.
5360654 Sorbent articles  
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
5350435 Soil fertilization method  
The present invention provides a soil fertilization method which includes a process for producing a fertilyzer by-product from an ammonia filtering media. The method includes the steps of providing...
5346566 Water barrier of water-swellable clay or other abrasive material sandwiched between interconnected layers of flexible fabric sewn or needled together using a lubricant and/or a liquid adhesive  
A multi-layer article of manufacture includes an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of flexible sheet or fabric material...
5344702 Coated fibers  
Fibers coated with thin polymeric films are disclosed and claimed. In a preferred embodiment, microporous fibers are coated with a pre-cast polymeric film having a thickness of about 200 to about...
5342423 Air filter for an HVAC system and method of manufacturing same  
An air filter apparatus for an HVAC system having a frame with a channel area formed therein and having legs extending into the channel area, and a filter material having a portion received within...
5338340 Filter and method of making same  
An odor-removing filter approaching the carbon-particle loading of a filled filter may be formed by spraying or roll coating the adhesive against one or more faces of a porous, fibrous,...
5336286 High efficiency air filtration media  
A high efficiency air filtration media comprises: about 5 to about 20% by weight of fibrids; about 5 to about 20% by weight of a binder; and about 60 to about 90% by weight of staple fiber. The...
5324579 Static dissipative nonwoven textile material  
A nonwoven textile material useful in dissipating static electric charges containing an electrically conductive polytetrafluoroethylene fiber. An amount of a synthetic fiber may be intermixed with...
5320655 Incineratable holding frame for filter bags, and method of making the frame  
To permit environmentally safe incineration of a filter bag together with its holding frame, and without requiring removal of the holding frame prior to incineration, the holding frame is made of...
5320891 Particle barrier nonwoven material  
Disclosed is a method of producing a nonwoven material having improved resistance to penetration by particles. The method includes the steps of heating at least one nonwoven web containing...
5318608 Carburetor air filter  
A supplemental cylindrical air cleaner or filter is provided for the inlet snorkel of a conventional automotive air cleaner housing and the supplemental air filter or cleaner incorporates a molded...
5304227 Electret filters  
An electret filter made of a resin whose angle of contact upon wetting with pure water is no smaller than 95 degrees, as well as an electret filter made of a resin whose angle of contact upon...
5298046 Diesel particulate filter element and filter  
An efficient, economical, compact diesel particulate filter element in the form of a spiral roll. The filtering element is useful as a filtering element in a diesel particulate filter.
5290502 Method of making a rigidized fiber filter element  
A rigidized fiber filter element is produced from a precursor fiber web. The precursor fiber web contains heat-shrinkable fibers or binder fibers or both. The web is exposed to temperatures...
5290345 Refillable gas adsorption bed assembly and counterflow adsorber module  
The present invention pertains to a refillable gas adsorption bed assembly having a box-like, generally rectangular frame The frame has a pair of oppositely disposed side members and a pair of...
5288299 Exhaust gas treating apparatus  
A compact exhaust gas treating apparatus which is improved in the bag filter performance in order to reduce the amount of dioxin contained in exhaust gas discharged from municipal refuse...
5284704 Non-woven textile articles comprising bicomponent fibers and method of manufacture  
Fibers comprising 10 to 100% of bicomponent fibers, composed of a core polymer covered by a sheath polymer, are heated to a temperature between the softening point and the melting point of the...
5283106 Nonwoven material of two or more layers, in particular with long-term filter properties and manufacture thereof  
There is disclosed a multilayered filter material comprising nonwovens made of fibers or filaments of identical or different polymers, said filter material being composed of a depth filter and a...
5273565 Meltblown fabric  
A meltblown web is composed of fibers having a narrow fiber size distribution (expressed as % coefficient of variation of the average fiber diameter) and low packing density. The web is...
5256176 Film electret and an electret filter  
A film electret and an electret filter that contain a polar high-molecular weight compound and that provides a TSDC curve having a homocharge peak temperature of at least 95° C. and a heterocharge...
5248323 Vacuum cleaner and filter thereof  
In a vacuum cleaner comprising a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary means driven by the motor for creating a vacuum in the chamber, an outlet for...
5246474 Process for manufacturing a self-supporting filter unit  
A rigid self-supporting filter unit is produced by placing two portions of fiber fabric in face-to-face contact and stitching them along parallel regions, using two rows of stitches (16), to form...
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...
5232477 Device for controlling exhaust emission  
A device for controlling engine exhaust emission for use on an internal-combustion installation, in which a soot filter is arranged in an exhaust-gas system. The soot filter is made up of a...
5232480 Filter  
A filter is disclosed including a four-sided frame having a central aperture therein. Four side walls are provided, with each side wall being pivotally mounted to one side of the frame, and movable...
5230455 Self-supporting filter units  
A filter unit is made of two portions (14) of rigid corrugated material secured together along lands (50,52) extending parallel with the corrugations and, if desired, intermediate them, and also...
5230226 Method for manufacturing a filter resistant to high temperature  
A method of manufacturing a filter resistant to high temperatures and mechanical stress, includes forming a fiber secured to a suitable framework wherein a double-sided knitted fabric is knitted...
5219469 Filter medium having flock islands of fibers anchored by calotte shaped adhesive deposits  
A unitary filter medium that is composed of a sheet of porous substrate that has bonded to its upstream surface a plurality of separate spaced apart islands of flock fibers, the fibers of adjacent...
5207812 Filter cartridge  
A pleated filter cartridge for removing particles or dust from a gas stream is described. The cartridge is made of a perforated support tube, a pleated filter medium around said tube, and end caps...
5198294 Composite air-filtering material  
An air-filtering material exchangeably attached to a home-use or automobile air filter comprises a water jet type nonwoven fabric at an air outlet side and another type nonwoven fabric or fiber...
5190569 Purification apparatus for pneumatic systems  
An air purification apparatus for pneumatic systems utilizing a water trap, a precooler, and a three-stage purification apparatus having filtration means, an air cooling chamber for moisture...
5181945 High-temperature fabric filter media  
An efficient, highly porous fabric filter medium capable of filtering air at temperatures up to about 500° F. (260° C.) has been provided. The filter medium is made from a polyimide fiber and is...
5171342 Filter insert for air filters used in a dust-filled environment  
A filter insert 10 for an air filter for internal combustion engines, compressors or other air-aspirating machinery, which filter insert consists of a filter ring 13 formed of pleated filter paper...
5171338 Gas filter installation with improved unclogging means  
An installation for filtering air comprises a plurality of cells in parallel and each including an inlet, at least one filter, and an outlet, the inlets being connected to an inlet manifold, and...
5171339 Filter bag for hot gases  
As a cloth for filter bags, a laminate comprising thin layer of nonwoven poly(p-phenylene terephthalamide) needled to a felt of poly(m-phenylene isophthalamide), polyester or polyphenylenesulfide...
5156661 Bag filter with thermoplastic tape-sealed sewn seam  
A bag filter comprising at least one sheet of a filter medium, preferably a polypropylene high dirt capacity filter medium, formed into a bag configuration with an opening, an inside surface, an...
5143767 Processes for preparing electret filters  
Provided herein is a process for preparing an electret filter which comprises feeding a non-woven fabric composed of an electrically charged web of synthetic fibers through a nip of co-operating...
5129920 Gas separation apparatus and also method for separating gases by means of such an apparatus  
Gas separation apparatus constructed from a module comprising a bundle of asymmetric hollow fibres of poly(2,6-dimethyl-p-phenylene oxide) having the high molecular weight Mw of 10 5 -5.10 6 . The...
5116650 Dioxole/TFE copolymer composites  
A gas permeable material comprising a material having continuous pores through it, in which the pore interiors are coated with an amorphous copolymer of tetrafluoroethylene and...
5096472 High efficiency industrial vacuum cleaner and improved filter element  
A vacuum cleaner uses a special self-cleaning filter arrangement including an initial fabric filter having a relatively large mesh size with a broad open mesh ratio of 5 to 11 flat filter threads...
5096473 Filtration fabric laminates  
A filter composite is made of a porous polytetrafluoroethylene (PTFE) and a fabric. The PTFE and fabric are bonded by an adhesive. The adhesive is prevented from penetrating the fabric by employing...
5090975 High efficiency vacuum cleaner bags  
A novel vacuum cleaner bag is disclosed comprising a closed receptacle having an inlet orifice, the bag being formed from a sheet containing at least 65% flashspun polyolefin fibers. The vacuum...
5066319 Filter cartridge  
Filter cartridge, in particular with a block-like construction, including a plurality of fold walls created by folding in a zig-zag fashion for a medium to be filtered to pass through from one edge...
5053066 Nonwoven filter and method of manufacture  
A filter useful as a cigarette smoke filter is made by convergingly passing a flat restrained meltblown web successively through a heated zone and a trumpet to form a roving. The roving may be...
5045094 Nonwoven fiber bed mist eliminator  
Nonwoven fiber bed mist eliminators in which at least one filter element is comprised of a fiber bed of syntheic polymer nonwoven material or fabric containing coalescing or collection sites...
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...
5021831 Filter for removing smoke and toner dust used in electrophotographic/electrostatic recording apparatus  
In an electrophotographic/electrostatic recording apparatus especially for high speed recording, a toner image on a recording sheet is fused thereon by a flash lamp in a fixing unit, and smoke is...
Matches 251 - 300 out of 565 < 1 2 3 4 5 6 7 8 9 10 11 12 >