Class / Patent application number | Description | Number of patent applications / Date published |
055385200 | In environmental air enclosure | 41 |
20080196367 | METHOD AND APPARATUS FOR DETECTING AND REMOVING AIRBORNE IMPURITIES WITHIN AN ENCLOSED CHAMBER - An apparatus for detecting and removing airborne impurities within an enclosed chamber is provided according to an embodiment of the invention. The enclosed chamber includes a chamber housing and an opening in the chamber housing for introducing airborne impurities. The enclosed chamber also includes a meter for detecting the airborne impurity level within the enclosed chamber. At least one air cleaner located within the chamber housing is provided for removal of airborne impurities. | 08-21-2008 |
20080209870 | Gas diffusion device - A gas diffusion device used in conjunction with a flow of gas from a conduit utilizing a sheet having a peripheral edge defining a surface inwardly from the edge. The surface possesses a first zone, and a second zone between the first zone and the peripheral edge. A first plurality of apertures through the sheet lie in the first zone. A second plurality of apertures through the sheet lie in the second zone. The percentage of open area of the first plurality of apertures relative to the area of the first zone is less than the percentage of open area due to the second plurality of apertures through the second zone. | 09-04-2008 |
20080282652 | Modular welding or like operation conduit enclosure abstract of the disclosure - An inflatable modularly constructed for use over cites near welding or other operations upon, for example, one or more conduit members, in order to retain within the interior structure unwanted gases, flake, slags, sparks and other debris. The modules may be shaped and provided in such numbers as to provide a specific contour with each member being re-usable in combination with other members for subsequent operations. The modular members are selectively secured together so as to be substantially air tight to provide effective inflation of the unit. A framework may also be provided to assist in enhancing effective inflation during work operations. Fans and filter units may be provided for continuous inflation and to filter the intake inflation gas. | 11-20-2008 |
20080282653 | System for modifying the atmosphere within an enclosed space and incubator system including the same - System for modifying the chemical composition of atmosphere within an enclosed space and incubator system including such a system. The concentration of oxygen within the enclosed space may be either increased or decreased using an electrochemical device. The concentration of carbon dioxide within the enclosed space may be increased using an electrochemical or chemical device. As necessary, purging of the system with ambient air can be a part of the process of controlling the chemical composition of the atmosphere. The present invention obviates the need to use pressurized gas cylinders to supply atmospheric gases to the enclosed space. | 11-20-2008 |
20090113860 | LOW MAINTENANCE AIR CLEANING SYSTEM FOR WELDING CHAMBERS - The present invention relates to a novel enclosure and air filtration design for use with robotic welding stations. It includes a novel frame design, novel air cleaning systems and systems for reducing the frequency of cleaning the air cleaning system. | 05-07-2009 |
20090183474 | AIR FILTER - An HVAC air filter having a frame is disclosed. The frame disclosed includes filtration media and corners designed to allow for the expansion of the frame. The expansion of the frame allows for full nesting of multiple air filters. | 07-23-2009 |
20100101198 | Air Quality Containment Unit - The present invention describes an air quality containment unit for isolating a construction, renovation or maintenance project. The air quality containment unit contains dust, molds and other air-borne pollutants using a filter, such as a high-efficiency particulate air (HEPA) filter, to maintain a negative air pressure in the unit. The air quality containment unit includes at least one sealable orifice that allows workers to introduce, for example, an electrical cord into the unit without breaching containment. | 04-29-2010 |
20100107578 | Fleece medium, it's manufacturing method and a filter element made of it - A method for electrostatic spinning of thermoplastic polymers for obtaining nano and microfibers, is introduced. The method if characterized by the following steps: solving the thermoplastic polymer in a corresponding solvent; adding a thermoplastic elastomer (TPE) to this solution, and introducing the solution into an electric field and spinning under the effect of the electric field to nano and microfibers. | 05-06-2010 |
20100251677 | Modular apparatus for processing air, particularly for classified environments and food article making processes in general - A modular apparatus for processing air, particularly for classified environments and processes for preparing foods in general, characterized in that said apparatus comprises: a recovery air and outside air suction section, said suction section optionally comprising a free cooling fan; an air mixing section; a filtering section; a cold and hot battery section; a spacing section between the batteries of said cold and hot battery section; an air delivery ventilating section; an optional absolute filtering section; and an air delivery section. | 10-07-2010 |
20110126498 | Dynamic barrier isolation chamber - The invention concerns an isolation chamber for isolating substances from the ambient while simultaneously maintaining aseptic conditions within the isolation chamber and protecting the operator from potent compounds. The isolation chamber comprises a first container surrounding and defining an isolation space of holding the substances and a second container surrounding the first container. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space. | 06-02-2011 |
20120255266 | INERTIAL FILTER FOR ENVIRONMENTAL CONTROL SYSTEM HEAT EXCHANGER APPLICATIONS - An inertial filter may allow longer cleaning intervals as compared to conventional filters. The inertial filter may be used with devices such as ozone converters or heat exchangers in aircraft applications. The inertial filter may be a louvered inertial filter adapted to change the direction of a large portion of inlet air, forcing this large portion through louvers as clean outlet air. A small portion of air is permitted to continue in its original direction, carrying with it dust and particles. The small portion of air may be up to about 10 percent of the total air flow through the filter. | 10-11-2012 |
20120272629 | ANTI-POLLUTION, ANTI-BACTERIAL, WATER RESISTANT BABY COVER - A cover of a means for holding children and/or babies, the holding means having at least one opening, wherein the cover includes: (a) means for releasable fastening to the holding means, wherein attachment of the cover to the holding means enables the cover to match its form to openings of the holding means, (b) a layer configured to at least partially filter air introduced via the openings into the holding means, the layer including at least one layer including non-woven material, and (c) at least one window, whereby the child in the holding means is capable of viewing outside the holding means. The windows include a layer impermeable to at least one of the group including dust, air pollutants, viruses, (Rubber) bacteria, UV radiation, liquids and insects. | 11-01-2012 |
20120297741 | OPEN TOP WORK CELL HAVING A FLUID BARRIER - A work cell assembly such as welding cell assembly and a method for assembling the same is provided. The work cell has a perimeter wall including an upper wall edge defining an open top. A fluid filtration unit draws in fluid from the work cell and removes contaminants. A fluid moving device including an air blade assembly adjacent the upper wall edge and an inlet adjacent the upper wall edge and spaced downstream from the air blade assembly establish therebetween a sheet-like fluid barrier extending across the open top. The fluid barrier is defined by a continuous flow of fluid traveling across the open top for entraining the contaminant and creating a ceiling effect across the open top to prevent escape of the contaminant from the work cell through the open top. The fluid barrier has a narrow vertical extent to prevent disturbance of the fluid in the work cell. | 11-29-2012 |
20120304604 | BUILDING AIR FILTRATION SYSTEM - An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. The gap between the door edges and the door frame and the door threshold region has an air flow permitting region in at least a portion of the gap. An air filter is mounted to extend substantially across the air flow permitting region. | 12-06-2012 |
20120311978 | COLLAPSIBLE AND/OR ASSEMBLED FILTER HOUSING AND FILTER USED THEREWITH - A filter assembly including a rectangular inlet frame having a rectangular inlet opening, a rectangular outlet frame, a housing body being collapsible to have a flattened shipping state and an erect state, the collapsible housing body in the erect state being rectangular and interposed between the rectangular inlet frame and the rectangular outlet frame in an assembled state, and at least one filter having filter media installed in the rectangular inlet opening in generally sealing relation thereto and projecting from the inlet frame toward the outlet frame in the assembled state. | 12-13-2012 |
20120317940 | NON V-BANK FILTER FOR ANIMAL CONFINEMENT FACILITY - A non-V bank filter for an animal confinement application such as for filtering out the porcine reproductive and respiratory syndrome virus (PRRSV) is provided. The filter may be a deep pleat of synthetic filter media with at least a MERV 14 rating and efficiency sufficient to filter out the PRRSV in high air flow applications. The media may be embossed and have spacers to provide for structural support and open filter structure for airflow. The filter can occupy less space and in some embodiments ½ or even less space than a corresponding V-Bank filter with comparable performance. | 12-20-2012 |
20120317941 | FILTER SYSTEM USING PLASTIC FRAMES ALONG STRUCTURAL WALL OF ANIMAL CONFINEMENT BUILDING - A filter assembly including a rectangular inlet frame having a rectangular inlet opening to receive a primary filter and optional a prefilter. The filter assembly may include a rectangular outlet frame and a housing body that is collapsible to have a flattened shipping state and an erect state. The rectangular inlet frame may also be used as a housing by itself to support and house primary filters and prefilters. A gridwork including one or more grid dividers may be used in the rectangular inlet frame to provide 2 or more openings for receipt of filters. | 12-20-2012 |
20130061567 | Isolator Device - An isolator device having a work chamber, air supply means for supplying air of a unidirectional airflow traveling from an upper part to a lower part in the work chamber, and air discharge means for discharging air of the unidirectional airflow from a lower part of the work chamber are provided, and moreover, a bulkhead provided in parallel with a peripheral wall portion of the work chamber along the air of the unidirectional airflow and longitudinal air outlets opened along a width direction of a lower end portion in a lower part of the lower end portion of the bulkhead and attached so as to oppose an air inlet portion by a filter unit for air purification is provided. | 03-14-2013 |
20130180220 | SHROUDED PARTICLE SEPERATOR - A particle separator includes a first housing and a second housing. The first housing extends along an axis from an open proximal end to an open distal end. The second housing has a closed proximal end disposed adjacent the open proximal end of the outer housing. The second housing extends from the closed proximal end into the first housing along substantially a same axis as the axis of the first housing. The second housing has one or more passages disposed at a distance from the closed proximal end of the second housing. Additionally, the one or more passages are disposed within the first housing at a distance from the open proximal end thereof. | 07-18-2013 |
20130186050 | Return air HVAC registers with slots for filter companions - Return air HVAC registers with slots for filter companions is disclosed. A pre-filtered return air register on a HVAC central forced air system, prevents contaminants from entering the system, by filtering the returning air to the HVAC system. | 07-25-2013 |
20130212991 | FLAT DUCT VENT FILTER COVER - An exterior duct filter retainer used in connection with a heating and air conditioning vent, the duct filter retainer including a filter body constructed of a material that is air permeable yet catches particles exiting the vent, the filter body having a an attachment assembly connected to the filter body; the attachment assembly being adapted to attach the filter body such that the filter is against and/or in registry with the vent. The filter body can be flat, and the attachment assembly can use a variety of means to attach the filter body in registry with the vent. | 08-22-2013 |
20130305670 | AIR FILTRATION UNIT - An air filter system and an air filter therefore are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. The gap between a lower edge of the door and the floor has an air flow permitting region. An air filter is mounted to extend substantially across the air flow permitting region. In a preferred embodiment the air filter extends across a lower edge of a door and filters air that passes below the lower door edge and a portion of the floor below the lower edge. | 11-21-2013 |
20140007549 | In Line Air Filtration and Purification Apparatus - A method and apparatus for an inline air purification system is described herein. An example apparatus includes a housing, a high-velocity air flow guide, a filter assembly, and a fan. The high-velocity air flow guide includes a first portion and a second portion. The first portion is configured to form a passage within the housing, and the second portion is configured to divert and accelerate air flow of the ambient air from the passage to a chamber of the housing. The filter assembly includes one or more filtering elements configured to receive the ambient air from the chamber. The fan is configured to draw the ambient air from the chamber through the filter assembly and to generate processed air from the ambient air. The housing is located in an HVAC duct, and occupies only part of the cross-sectional area of the duct. The remaining area of the duct accommodates bypass air flow to a primary fan in the HVAC system. | 01-09-2014 |
20140026525 | Damper for Positive Pressure Air Cleaner - The invention is a damper that closes off supply duct air when the unit is off to prevent air from exiting through the outlet, and opens when the unit is on to allow room air and/or supply duct air to exit through an outlet. The damper may be either motorized or mechanically biased. | 01-30-2014 |
20140041344 | AIR FILTER - An air filter ( | 02-13-2014 |
20140196419 | FAN FILTER UNIT AND AIR PURIFICATION SYSTEM FOR DUST-FREE ROOM - A fan filter unit (FFU) includes a fan, and a filter screen coupled with an air inlet of the fan. An air inlet of the filter screen is further configured with an auxiliary filter screen, and a minimum diameter of dust particles filtrated by the auxiliary filter screen is greater than a minimum diameter of the dust particles filtrated by the filter screen. | 07-17-2014 |
20140245706 | TOOL-LESS AUTO-ALIGNING FILTER RETENTION SYSTEM - A filter retention system for releasably retaining a filter cartridge in an operable position within air supply and air exhaust systems is comprised of a filter cartridge, filter retainers, mounting frame with integral sealing knife edge and filter alignment brackets. The filter retainers allow for installation and removal of the filter cartridge without the use of tools. The retention system automatically aligns filter cartridges such that an airtight seal is created between the sealant containing groove in the filter cartridge and the sealing knife edge of the retention system. | 09-04-2014 |
20140250844 | MULTI-STAGE HOOD FILTER SYSTEM - A filtration system for a ventilation hood includes a first filter and a second filter, operatively disposed in series. The first filter is configured to be mounted within the ventilation hood, and has an air inlet, an air outlet, and a grease outlet. The second filter includes a filter material with an upstream surface and a downstream surface, an upstream housing element abutting the upstream surface of the filter material, and a downstream housing element abutting the downstream surface of the filter material. The housing elements include openings, and hold the filter material in compression. | 09-11-2014 |
20140260130 | DUCTLESS LABORATORY HOOD APPARATUS - A ductless laboratory hood apparatus includes a housing defining an interior work chamber, a filtration chamber, an access window opening into the work chamber from an ambient laboratory environment, and an exhaust outlet opening from the filtration chamber into the laboratory environment, a filter system disposed between the work and filtration chambers, and an air circulation system for creating and directing an airstream to flow from the laboratory environment through the access window, the work chamber, the filter system, the filtration chamber, and the exhaust outlet to return into the laboratory environment. The filter system has both a main filter whose constituent material is highly efficient but is also degradable if exposed directly to laboratory processes, and an attenuation filter disposed between the work chamber and the main filter to intercept and attenuate laboratory processes that potentially degrade the main filter, thereby preventing degradation of the main filter. | 09-18-2014 |
20140260131 | GROW LIGHT COOLING AND GROW ROOM ODOR POLLUTION CONTROL SYSTEM - A grow light cooling and grow room odor pollution control system that includes an air plenum with a plurality of air inlets; a plurality of air ducts connecting each air inlet to at least one grow light housing, at least one air outlet; an air pump mounted in the air plenum, and at least one filter operatively coupled to the air pump and disposed between all of the air inlets and the air outlet, such that the air pump pulls hot and odorous air from nearby grow light housings into the air plenum through the air inlets, through the air filter, and then out from the plenum for dissipation in the outside atmosphere or for use in heating a structure. | 09-18-2014 |
20140366498 | LOCAL AIR CLEANING APPARATUS - A local air cleaning apparatus ( | 12-18-2014 |
20150033683 | FUME HOOD - A fume hood, which comprises a plurality of peripheral inclined drainage channels for receiving condensed grease that is gravitationally delivered thereto from a region of the fume hood thereabove. One of the drainage channels continuously extends into an adjacent drainage channel therebelow to provide a single passageway that delivers the received grease to a single grease collection hole. Each of the drainage channels comprises a surface along which the received grease flows and which slightly extends inwardly into a hood interior from a bottom edge of a corresponding wall of the hood, and a border element which extends vertically above an inward edge of the drainage channel surface to a sufficient height which prevents the flowing grease from spilling into the hood interior. | 02-05-2015 |
20150059298 | LOCAL AIR CLEANING APPARATUS - A local air cleaning apparatus ( | 03-05-2015 |
20150059299 | Filter Unit - A filter unit which has a simple structure and can ensure high-level safety in response to risk during operation of an apparatus such as an isolator device is provided. One type of filter unit includes a rectangular cylindrical body having a first wall portion provided with an air inlet portion and a second wall portion formed so as to cross the first wall portion and provided with an air discharge port portion, a filter member provided in the cylindrical body for filtering introduced air, an annular seal member surrounding an outer periphery portion of the air inlet portion, and a detachable lid body closing the air inlet portion in an airtight manner. The filter unit is connected to a work chamber such that the air inlet portion is attached so as to oppose an air outlet of the work chamber and so that the seal member abuts an outer wall portion of the work chamber in an airtight manner. | 03-05-2015 |
20150068171 | Gas Enclosure Assembly and System - The present teachings relate to various embodiments of an hermetically-sealed gas enclosure assembly and system that can be readily transportable and assemblable and provide for maintaining a minimum inert gas volume and maximal access to various devices and apparatuses enclosed therein. Various embodiments of an hermetically-sealed gas enclosure assembly and system of the present teachings can have a gas enclosure assembly constructed in a fashion that minimizes the internal volume of a gas enclosure assembly, and at the same time optimizes the working space to accommodate a variety of footprints of various OLED printing systems. Various embodiments of a gas enclosure assembly so constructed additionally provide ready access to the interior of a gas enclosure assembly from the exterior during processing and readily access to the interior for maintenance, while minimizing downtime. | 03-12-2015 |
20150096271 | METHOD AND SYSTEM FOR REPLACING AIR FILTER - An air intake of an air handling or HVAC system, such as located in a ceiling of a structure, includes a movable filter housing. The filter housing comprises a grate configured to support one or more air filters at a top side thereof. The filter housing is mounted via one or more extendable connectors and includes a control tool mount. Connection of a control tool to the filter housing allows a user to pull the filter housing downwardly to a lowered position for replacing the air filter(s). The filter housing may be biased upwardly to its use position and may include a latch or lock to secure it in the use position. | 04-09-2015 |
20150113927 | ASEPTIC PROCESSING WORKSTATION - This invention relates to an aseptic processing workstation comprising a processing chamber and an airflow circuit passing through the chamber. The circuit comprises an air supply fan, an air return fan and a restriction element. The chamber is located in the circuit between the air supply fan and the air return fan. The restriction element is located in the circuit on the other side of the air supply fan and the air return fan to the chamber. The workstation further comprises an air inlet fluidly connected at a first connection point to the circuit via inlet valve means. The first connection point is located between the restriction element and the air supply fan. The workstation further comprises an air outlet fluidly connected at a second connection point to the circuit via outlet valve means. The workstation further comprises control means for independently controlling the speed of the air supply fan and the air return fan. | 04-30-2015 |
20150128541 | PURIFIED AIR DISCHARGE DEVICE - The purified air discharge device comprises a push hood ( | 05-14-2015 |
20150375151 | AIR FILTER FOR COLLECTING DEBRIS IN AN AIRCRAFT VENTILATION DUCT - The disclosure herein includes an air filter for an aircraft ventilation duct, the duct including an upstream pipe and a downstream pipe in line with the upstream pipe the air filter including a screen with an outside diameter greater than the outside diameters of the upstream pipe and the downstream pipe and a clamp with an interior surface that surrounds the screen and extends to either side of the screen, the interior surface including a groove configured to receive at least partially a peripheral rim of the screen. The disclosure herein also includes ventilation duct equipped with the air filter and a method of collecting debris in an aircraft ventilation duct that uses an air filter according to the disclosure herein. | 12-31-2015 |
20160023154 | Apparatus and Methods for Capturing Vapors Exiting a Material Storage Compartment of a Vessel - A temporary hood for capturing vapors exiting from a material storage compartment of a vessel when the compartment is opened includes a base frame that extends around an opening to the compartment and is releasably secured to the vessel. An upper framework is releasably coupled to the base frame and extends upwardly from the vessel around the opening. A plurality of panels are releasably engageable with the upper framework and form an enclosure around the opening. At least one vapor discharge outlet fluidly communicates with the material storage compartment and a vacuum pump to allow the capture of vapors exiting from the opening when the cover is opened and the temporary hood is engaged with the vessel. | 01-28-2016 |
20160129381 | FILTER MEDIA AND ELEMENTS - Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers. | 05-12-2016 |