Matches 301 - 350 out of 575 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
5814115 Grease filter for exhaust systems in commercial food preparation environments  
A grease filter system for use in connection with retaining viscous products of combustion in commercial food preparation environments includes a receptacle and a filter element removably supported...
5814118 HEPA filter for venting chambers  
A high quality HEPA filter is used in a vent for venting a chamber containing a radioactive material such as a plutonium slurry. The filter element includes a stainless steel wire mesh tube which...
5809777 Diesel particulate filter apparatus  
In this DPF apparatus, the filters have large trapping areas and three-dimensionally and efficiently trap particulates contained in the exhaust gas thereby cleaning the gas and reducing the size of...
5807424 Regenerative adsorption filter bed for exhauster hoods  
An odor filter for exhauster hoods, which filter includes an adsorption filter bed regenerable by washing. The filter bed is made of a highly air-permeable substrate material and an adsorbent...
5800587 Filtration arrangement and method  
Constructions and methods are described for collecting particulate material from gas streams. In one specifically described arrangement, a region of depth media is oriented upstream of a second...
5797974 Respiratory filter and sampling device  
A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial...
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...
5785725 Polymeric fiber and glass fiber composite filter media  
A composite filter media for bag or pocket filters and the like includes an upstream dirt-holding layer of fine polymeric fibers and a downstream high efficiency filtration layer of glass fibers....
5772738 Multifunctional air filter and air-circulating clean unit with the same incorporated therein  
A multifunctional air filter module includes a filter case having an air introduction side opening and an air discharge side opening and a pleated fabric air filter element containing an activated...
5766288 Multilayered deep-bed filter material  
Multilayered filter material is provided with at least two layers having different filter properties (coarse filter layer and fine filter layer), for which the separation ratio of the coarse filter...
5766282 Filtering bags with bag filter labels  
Filtering bags manufactured with materials selected to withstand specific conditions of service which include labels made of materials resistant to such conditions of service which have markings...
5762668 Apparatus and method for deentrainment in a chemical process tower  
A method of and apparatus for deentrainment and mass transfer in a chemical process tower. The apparatus comprises a structured packing layer assembled with a second type of packing layer disposed...
5759219 Unitary drop-in airbag filters  
Unitary filters for airbags. The filters may be formed from various combinations of ceramic grit, ceramic fiber, metal grit, metal fiber, and non-metal fibers. Combinations of disparate particle...
5735918 Combination air freshener and air filter  
An automatically operating air filter and air freshener device which can be mounted on a wall or is self supporting, and in which the motor fan unit is located in front of the filters and part of...
5733351 Two stage vacuum cleaner filter  
A two stage vacuum cleaner filter is disclosed. The filter includes a first stage outer filter extending in a closed circumferential path with a second stage inner filter located in immediate...
5733271 Valve device for absorption of the gas components  
A valve device having a filter with at least a lower and upper compartment. The lower compartment is in fluid communication with a collection bag via apertures. The lower compartment is defined by...
5730770 Two-stage air filter for use with electronic enclosures  
A two-stage filter unit utilizing coarse and fine filter media in series, with the coarse filter media being detachable from a housing containing the fine filter media, the filter being especially...
5728299 Wound non-woven fabric filter having heat fusible fibers  
The cartridge filter of the present invention is a filter comprising a wound and laminated composite non-woven fabric containing heat fusible fibers, wherein the delamination strength between...
5728187 Air filtration media  
An air filtration media is formed of a blanket of fibers, preferably glass fibers, bonded together at their points of intersection with a binder. The blanket has a weight between about 2.5 and...
5720789 Method for contamination control and barrier apparatus with filter for containing waste materials that include dangerous particulate matter  
A container for hazardous waste materials that includes air or other gas carrying dangerous particulate matter has incorporated in barrier material, preferably in the form of a flexible sheet, one...
5716432 Desiccant container  
A container for particulate desiccant includes a cup and a cap. The cup includes spaced inner and outer wall portions connected by a transverse web portion to define a chamber having an opening for...
5714067 High efficiency and high capacity filter media  
A high efficiency and high capacity filter medium including a top layer of fibrous felt material, an intermediate layer of melt-blown material, and a substrate layer needled together into an...
5706777 Suction air filter for a combustion engine with diaphragm carburetor  
A suction air filter for an internal combustion engine with a diaphragm carburetor, wherein the combustion engine has a suction channel for taking in combustion air from a clean air side of the air...
5702494 Airbag filter assembly and method of assembly thereof  
An efficient, light-weight airbag inflation filter includes a gas-permeable, substantially rigid support tube having a plurality of uniform perforations therethrough. A filtering element formed...
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...
5672188 High capacity filter media  
A fluid filter arrangement including layered filter media capable of successively filtering varying sized particulate matter from a treated fluid stream with each layer of the layered filter media...
5669949 Air filtration arrangement  
Constructions and methods are described for collecting particulate material from gas streams. In certain specifically described air filter arrangements, a first, rigid, filter construction is used...
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...
5665131 Inflator filter made of wrapped mesh  
An improved method for fabricating a filter for use in automotive air bag inflators which comprises forming a hollow cylindrical inner core or combustion screen of filter material and outer filter...
5651810 Apparatus and method for filtering and sampling airborne respiratory contaminants  
A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial...
5647881 Shock resistant high efficiency vacuum cleaner filter bag  
There is provided a vacuum cleaner bag with high fine particle removal efficiency under normal and shock loading conditions, shock loading including a short term challenge with high particle...
5630855 Moisture-collecting device  
A moisture-collecting device comprises an enclosure (12) with a fluid inlet (15), a fluid outlet (16) and a fluid passage (18) extending between the fluid inlet and the fluid outlet, and a...
5614095 Filtration mediam support material and filter comprising same  
The present invention provides a method of preparing a support for a filtration medium comprising passing a sheet of nonwoven fibrous polymeric material having first and second sides through a...
5611728 Dust filter which is surrounded by a frame  
A dust filter is surrounded by a frame and is held exchangeably in an air duct of a heating system or air-conditioning system of a motor vehicle and downstream of which an absorption filter may be...
5611831 Diesel particulate filter apparatus  
A diesel particulate filter apparatus comprises filter structures bent in a wavy profile, formed in a tubular form, and comprising ceramic fiber laminate materials formed by randomly laminating a...
5605748 Fiber beds for fiber bed mist eliminators  
There is provided a fiber bed for removing liquid aerosols and soluble solids from a gas stream in a fiber bed mist eliminator. The fiber bed is in the form of a flexible mat having a void fraction...
5599713 Apparatus for purifying contaminated air  
Contaminated air, e.g., air contaminated by exhaust gases from automobiles and factories, is purified by passing the contaminated air through a soil layer populated with microorganisms. The...
5582146 Suction air filter  
A suction air filter for an internal combustion engine of a hand-held working tool has a housing having an inlet opening for air sucked in and an outlet opening for the clean air exiting the...
5567216 Grease filter assembly  
A grease filter assembly is provided for absorbing grease discharged from a spout of a grease discharge vent extending from a roof. A support frame is mountable to the duct of the grease discharge...
5540744 Roof-mounted kitchen ventilator grease collector  
An apparatus for collecting grease from a kitchen ventilator, which is mounted on the roof of a structure housing a restaurant. The apparatus fits around the exhaust fan of a kitchen ventilator and...
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...
5525136 Gasketed multi-media air cleaner  
An air cleaner incorporating a plurality of filtration techniques within a rigid, gasketed frame designed to fit in conventional filter tracks. A perimeter gasket attached to the frame leaving air...
RE35236 Adjustable air filter  
An adjustable air filter for use in heating, ventilating, cooling, and forced air systems. The air filter includes a media for filtering air and adapted to be cut with scissors, and a frame...
5509950 Filter device for the filtration of gases and/or fluids  
The filter device (10) has a filter element (12) including a filter medium (20) arranged in zig-zag shaped pleats. On its two longitudinal sides extending in the pleating direction (36), the filter...
5507847 ULPA filter  
An improved filter unit suitable for use in a variety of clean air filtration applications is taught. The filter unit employs continuous microporous filtration membranes, such as expanded...
5500271 Paint arrestor formed from slit sheet material  
A paint arrestor for absorbing paint overspray comprises a series of layers of sheet material, each of the layers being slit and expanded to define an array of air spaces distributed in columns....
5494412 Oil delivery prevention device for horizontal type rotary compressor  
An oil delivery prevention device for a horizontal type rotary compressor for use in a refrigerating system. The device effectively separates the mixed gas into oil and refrigerant gas and prevents...
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...
5456740 High-efficiency metal membrane getter element and process for making  
A getter-filter composite membrane element, comprising a sinterable getter material and a sinterable metal filter material, the composite element defining a matrix of substantially interconnected...
5453116 Self supporting hot gas filter assembly  
A device and method for maintaining a clean gas stream includes a particulate filter comprising of support tube made from a formed textile. The formed textile is constructed from a continuous...
Matches 301 - 350 out of 575 < 1 2 3 4 5 6 7 8 9 10 11 12 >