Abstract: A particulate filter for an exhaust system having an exhaust flow and a nominal flow area includes a housing and a plurality of plates arranged parallel to each other within the housing. Each plate has a plurality of orifices and a plurality of micropockets configured to trap exhaust particulates.

Abstract: A honeycomb structure comprising at least one main honeycomb structure 10 and sub-honeycomb structures 21, 22 axially disposed, in series, on both end surfaces of the main honeycomb structure 10. Partial plugs 15 are constituted for some of the cells 11 of the main honeycomb structure 10 by facing the intersecting portions of partitioning walls 211, surrounding the cells of the sub-honeycomb structure 21 disposed adjacent to the main honeycomb structure with some of the cells of main honeycomb structure, and the arrangement of the partial plugs 15 at one end surface 101 of the main honeycomb structure differs from that at the other end surface of the main honeycomb structure 10.

Abstract: A gas filler device for use in medical procedures such as laparoscopy is disclosed. Preferably, the gas filter device includes a housing having a first side wall and a second side wall, and a gas filter including a porous element including a hydrophobic membrane, the gas filter device allowing gas to pass through the porous filter element and the first side wall.

Abstract: An inline air filter for fuel injected engines that provides for the installation of the air filter into the air intake line of an air intake system of a fuel injected engine. The inline air includes a foam filter, a foam filter mesh, and a mesh filter. The foam filter is made from a flexible reticulated polyurethane foam material that allows proper air flow while maintaining good filtering capability. The inline air filter is installed onto an air intake assembly of the fuel injected engine by splicing the inline air filter into an air intake tube.

Abstract: 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 antibacterial/antiviral filtering device connected at one side to the hose and at the other side to the breathable gas supplying tube and to the exhaustion tube, the filtering device including a casing, provided with an inlet conduit connected to the breathable gas supplying tube, and an outlet conduit connected to the hose; the casing having at least two chambers having parallel axes, defined by at least a common wall, and in fluid connection one with the other.

Abstract: The invention provides a filter assembly for use in a vacuum cleaner having a first filter portion that includes a foam filter, and a second filter portion located downstream of the first filter portion and containing a HEPA grade filter medium, the first and second filter portions being held directly adjacent one another. The first filter portion also includes an electrostatic filter located on a side of the foam filter facing the second filter portion. The foam filter of the first filter portion is, in use, exposed directly to a dust-laden airflow. The provision of the electrostatic filter on the foam filter eliminates the possibility of dust initially retained by but later released from the foam filter escaping from the first filter portion.

Abstract: The invention relates to a multistage filter installation for gaseous media laden with water and/or oil. The stages (1, 2, 3) of the multistage filter installation contain filter aids where water and/or oil separate as a result of the coalescence effect, and the individual stages (1-3) of the filter installation have a greater separating capacity form one stage to another in the direction of flow of the media. The pore size of the filter aid becomes smaller from one stage to another and/or the layer thickness of the filter aid becomes larger, and the flow cross-section becomes larger such that the flow rate becomes lower from one stage to another without increase in pressure.

Abstract: A combined filter for removing an aqueous fluid and entities, such as bacteria, existing in such aqueous fluid, from a nonaqueous fluid is described. The combined filter consists of a hydrophilic filter and a hydrophobic filter that are arranged in fluid communication and serially to be placed along the flow path of a fluid. The hydrophilic filter and the hydrophobic filter may touch one another or be located some distance from one another. Also, a structure may be inserted into the space between the hydrophilic filter and the hydrophobic filter that will maintain the space between the hydrophilic filter and the hydrophobic filter without significantly restricting the flow of fluid. And, in one embodiment, the combined filter may be composed simply of material having both hydrophilic and hydrophobic characteristics on the molecular level. Preferably, however, the filters and spacing structure are contained within an encasement having an inlet and an outlet.

Abstract: A portable air purifier system and apparatus which includes a multi-element filter pack that is replaceable as a single unit, thus facilitating health safety of maintenance personnel. By serially disposing filter elements in order of descending sizes of particulates, filtering is improved. Selectably includable within the filters are materials that are particularly efficacious in removing contaminants such as acetone, ammonia, ozone, carbon monoxide, carbon dioxide, ethanol, methane, ethane, methanol, formaldehyde, hydrogen sulfide and other hazardous substances. By including an ultra-violet light source directed onto an activated charcoal layer, germicidal action is facilitated, and noise is abated through the advantageous employment of an expanded plenum and multiple right angle bends in air passageways.

Abstract: A multi port air filter for fuel injected engines provides for the installation of the air filter into the air intake line of an air intake system of a fuel injected engine. The multi port air filter has several filtering elements including an outside filter screen, a foam filter, and inside filter screen, a foam filter mesh, and a mesh filter. The foam filter is made from a flexible reticulated polyurethane foam material that allows proper air flow while maintaining good filtering capability.

Abstract: A fresh air duct is configured to direct fresh air filtered by an air conditioning system towards a clean room downstream from the fresh air duct, the fresh air having a first level of particle density. A separate particle filter in the fresh air duct, located downstream from the air conditioning system and upstream from the clean room, is configured to further filter the fresh air to provide filtered fresh air having a second level of particle density therein that is less than the first level. Related methods are also disclosed.

Abstract: A filter device for use in medical procedures such as laparoscopy is disclosed. Preferably, the device comprises a filter arrangement and a filter housing having first and second side walls, wherein at least a portion of each of the first and second side walls is flexible and porous.

Abstract: A diesel particulate filter construction, for filtering particulate from a flow of exhaust, includes a first layer of electrically resistive metal filter material in line with the flow of exhaust with particulate therein and a second layer of electrically resistive filter material which is also in line with the flow of exhaust with particulate therein. The layers are pleated cylinders concentrically positioned relative to one another. Current from a power supply is routed through the first layer and the second layer, which are electrically connected in series to one another. The layers are positioned so that exhaust flows through both the layers. Sufficient heat is generated by the flow of current through the layers to generate heat to, in turn, burn off entrapped particulate.

Abstract: 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 purging region connected to the filtering region. The present invention further includes a method of removing a first contaminant in a gas phase, a second contaminant in a solid phase, and a third contaminant having an electrical charge from a purge gas and flowing the purge gas through a vicinity of a mask while exposing a wafer with light through the mask.

Abstract: A smoke filter device for use in medical procedures such as laparoscopy is disclosed, the device comprising a filter housing having an inlet port and first and second side walls, the side walls comprising non-woven media, and a smoke filter capable of filtering smoke from gas, wherein the filter is disposed in the housing.

Abstract: An arrangement for providing combustion air as well as cabin air for a motor vehicle includes an engine air intake duct which opens through the fire wall of the motor vehicle so that cabin air is used for combustion air. Fresh cabin air is continuously introduced to the vehicle cabin through a filter arrangement disposed in the trunk of the vehicle so that atmospheric air is first drawn through the filter element in the trunk of the vehicle to provide cabin air and the cabin air is then drawn for use as combustion air through an opening in the vehicle fire wall. In an additional embodiment of the invention, there is an additional combustion air filter disposed in the cabin of the vehicle for filtering cabin air prior to using the cabin air as combustion air. With this arrangement the combustion air filter is easy to change. In both embodiments available space the engine compartment of the vehicle can be increased because the air filter has been removed from the engine compartment.

Abstract: A flow system includes an air mover operable to cause the flow. A first stage, such as a coarse filter, is disposed upstream of the air mover and operates on the flow. A second stage, such as an adsorbent cell or muffler, is disposed downstream of the air mover and further operates on the flow. Other stages, such as a fine filter, may be disposed between the first and second stages.

Abstract: A filter for air extraction apparatus is disclosed, which is assembled from a porous material arranged to collect contaminants. The filter comprises a bag with a constricted inlet for receiving contaminated air. The bag is formed from a plurality of envelopes having filtering side walls and each of the envelopes has at least one orifice connected to an orifice of an adjacent envelope.

Abstract: An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha values over time. Preferred charge additives include fatty acid amides and mixtures thereof.

Abstract: A filter filters fluid flowing along an axial flow direction and includes a plurality of concentric cylindrical pleated filter elements having a common axis. A plurality of annular radial gaps between filter elements provide additional flow axially through the filter, providing equalized flow and reducing restriction. In further embodiments, a central filter element is concentrically surrounded by a cylindrical pleated outer filter element and provides additional flow axially therethrough.

Abstract: The invention relates to a portable air sterilization and filtration apparatus for removing contaminants from the ambient atmosphere, having a housing with an inlet opening and an outlet opening, filter media and ultraviolet light source, and a motorized fan for maintaining a flow of air through the housing from the inlet opening to the outlet opening. The invention also includes easy access to the filter medium and to the ultraviolet light sources for periodic replacement or cleaning, and integrates a safety lock feature whereby the removal of the filter or the removal of an ultraviolet light source would open the power circuit to the ultraviolet light source, preventing accidental irradiation of the user. The ultraviolet light sources also activate an indicator light viewable by the user when the ultraviolet light sources are energized.

Abstract: A method and apparatus for separating fluid from exhaust air in a semiconductor cleaning device implements a separator box having at least one mesh layer disposed therein to assist in preventing separated fluid from entering exhaust ducting. The mesh layer reduces the amount of splashing and assists in maintaining an even air flow. Additional layers of mesh may be disposed above the first mesh layer to further assist in reducing fluid from entering exhaust ducting.

Abstract: A vacuum cleaner has a tank and a lid for closing off the tank. A motor/impeller unit is disposed inside the tank for generating an airstream. A filter support is attached to the lid and disposed inside the tank. A foam sleeve for removing liquid from the airstream is attached to the filter support. An air filter cartridge is removably attached to the filter support outside of the foam sleeve. The foam sleeve may remain in place as the filter cartridge is attached for dry pick-up or removed for wet pick-up. In addition, a drain hole is provided in the lid for draining liquid passing through the foam sleeve.

Abstract: The filter system for filtering particulate material from a generally unidirectional fluid stream comprises a first filter removably positioned in the fluid stream and a second filter removably positioned in the fluid stream downstream of the first filter. The first filter comprises a pre-filter and includes a layer of fluid-permeable material having a plurality of spaced-apart openings extending completely therethrough. The method of utilizing the fluid filter system of this invention is also disclosed and comprises the steps of: (1) removably positioning a first filter in the fluid stream; and (2) removably positioning a fluid-permeable second filter in the fluid stream downstream of the first filter.

Abstract: A portable environmental control system for evacuating particulate laden, toxic, and explosive gasses from an interior space includes a flexible partition for erection at the interior space, and a first section of flexible duct connected to the partition and to an electric motor driven blower unit having an explosion proof ducted fan. A second section of duct is connected to the blower unit and may be connected to a filter unit mountable in a window of an interior room or to a collapsible plenum having plural filter units mounted therein for treating and returning air evacuated from the space back into the space. The blower unit may be placed within a space having a high concentration of explosive gasses for evacuating the gasses by way of an elongated duct section connected to an elevating mechanism to discharge gasses out of doors above ground level.

Abstract: Exhaust gases from an internal combustion engine operating with leaded or unleaded gasoline or diesel or natural gas, are used for energizing a high-speed gas turbine. The convoluting gas discharge causes a first separation stage by stratifying of heavier and lighter exhaust gas components that exit from the turbine in opposite directions, the heavier components having a second stratifying separation in a vortex tube to separate combustible pollutants from non-combustible components. The non-combustible components exit a vortex tube open end to atmosphere. The lighter combustible, pollutants effected in the first separation are bubbled through a sodium hydroxide solution for dissolving the nitric oxide, formaldehyde impurities in this gas stream before being piped to the engine air intake for re-combustion, thereby reducing the engine's exhaust pollution and improving its fuel economy. The combustible, heavier pollutants from the second separation stage are piped to air filter assemblies.

Abstract: A filtration system, includes a filtration unit and processor. The filtration unit operates to filter ablative particles generated by thermal imaging of media and transmits a signal corresponding to a parameter, such as a pressure or pressure differential, representing a current state of the operation of the filtration unit, such as the state of the filters, during the filtering of the ablative particles. The processor receives the transmitted signals and generates, responsive to the receipt of the transmitted signal, a signal representing operator information associated with the current state operation, such as a warning or instructions for correcting a deficiency, and/or a signal to stop the imaging of the media.

Abstract: A combined filter for removing an aqueous fluid and entities, such as bacteria, existing in such aqueous fluid, from a nonaqueous fluid is described. The combined filter consists of a hydrophilic filter and a hydrophobic filter that are arranged in fluid communication and serially to be placed along the flow path of a fluid. The hydrophilic filter and the hydrophobic filter may touch one another or be located some distance from one another. Also, a structure may be inserted into the space between the hydrophilic filter and the hydrophobic filter that will maintain the space between the hydrophilic filter and the hydrophobic filter without significantly restricting the flow of fluid. And, in one embodiment, the combined filter may be composed simply of material having both hydrophilic and hydrophobic characteristics on the molecular level. Preferably, however, the filters and spacing structure are contained within an encasement having an inlet and an outlet.

Abstract: 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. The tiers can include thermally bindable components such as bicomponent or monocomponent polymer fibers, or adhesively bindable components, such as pulp fibers, especially fluff pulp, split film fibers, mixed electrostatically charged fibers and staple fibers. In addition to vacuum cleaner bags, the novel filter composite can be utilized in applications such as heating ventilation and air conditioning (HVAC) systems, vehicle cabin air filters, high efficiency (so-called “HEPA”) and clean room filters, emission control bag house filters, respirators, surgical face masks and the like.

Abstract: A compact plant for the depuration of polluted air, in particular from odorous substances, comprising a unitary housing in which are placed, in sequence, a prescrubbing section, a filtering bed and a postscrubbing section, in the two scrubbing sections the air flowing counter currently with respect to the water sprayed by suitable nozzles and possibly added with suitable chemical additives, whereas the filtering bed, preferably consisting of particles of the kind described in EP-497214, is sprayed with water added with nutrient substances for the micro-organism present in the bed itself, the water being sprayed flowing co-currently with the air passing through the bed.

Abstract: A ventless air scrubber assembly for use with a conventional cooking appliance situated within an interior location. A ventilation hood is arrayed in an overhanging manner above the cooking appliance and includes a recessed interior defined by a planar base surface and a plurality of interconnecting sides. The hood further includes an intake and an exhaust and a plurality of individual grease extraction units located within the hood in proximity to the exhaust. A filtration housing having an inlet and an outlet is located a specified distance from the hood and is interconnected to the hood exhaust by a first length of ductwork extending filtration housing inlet. A plurality of individual filters are arrayed between the inlet and an outlet in successive fashion. The filters include particulate entrapment filters and an odor removal filter. A second length of ductwork extends between the filtration housing outlet and an inlet of an exhaust fan.

Abstract: The air filtration device for use with a roof drill has an air intake block attached to a vertical support abutting the mine roof lateral to the drill hole. A flexible hose attached to a dust filter and a vacuum source for filtering and collecting dust from the air before exhausting the air to the atmosphere is connected to the air intake block. The air intake block has a plurality of holes defined in at least one face of the block for the intake of dust laden air and an air passage within the block in communication with the vacuum source provided by the flexible hose. The holes defined in the air intake block may be covered by screens to prevent the entrance of large particles into the air intake block. The air intake block is disposed to provide sufficient suction lateral to the longitudinal axis of the drill steel in order to remove fine particles of quartz and dust from the air adjacent the entrance of the drill hole.

Abstract: The invention provides a vacuum cleaner comprising an airflow path having a dirty air inlet (14) and a clean air outlet (44e), a fan (48) for drawing an airflow along the airflow path from the dirty air inlet (14) to the clean air outlet (44e), a motor (50) for driving the fan (48), separating apparatus (18) for separating dirt and dust from the airflow, a pre-motor filter (32) arranged upstream of the motor (50) and a post-motor filter (42) arranged downstream of the motor (50), wherein both the pre-motor filter (32) and the post-motor filter (42) are cylindrical filters.

Abstract: The present invention relates to a system for indoor air purification system to and particularly to a system for removing particulates, biologicals, and gaseous chemical contaminates through the use of low room temperature catalysts, a closed cycle heat exchanger a HEPA filter and polisher for removing NOx and SOx from the air flow.

Abstract: A microbiocidal air filter assembly, for filtering air, having a) a housing component defining an air path b) an air filter component b) an air inlet, and d) an air outlet, wherein the air filter component comprises a first air filter element and a second filter element, wherein the air filter component is disposed so as to intersect the air path for air flow communication between the air inlet and the air outlet through each of the air filter elements, wherein one of the air filter elements is a microbiocidal air filter element and comprises a demand disinfectant resin, the demand disinfectant resin being an iodinated strong base anion exchange resin.

Abstract: An evacuation system is provided for removing smoke generated during a surgical procedure performed in a surgical room. The evacuation system includes a pre-filter assembly and a replaceable filter cartridge module disposed in the surgical room to permit replacement of used filter cartridge modules with new filter cartridge modules by personnel within the surgical room. A vacuum generator is disposed outside of the surgical room and includes a vacuum pump for establishing an air flow through the replaceable filter cartridge module. The pre-filter assembly includes an elongate flexible suction hose that is adapted for manipulation into position adjacent the medical procedure. A mechanical connection mechanism enables pre-filter assemblies to be easily replaced between each surgical procedure. An accumulated filter usage circuit calculates a quantity of filter capacity available and generates a filter loading signal based on the available capacity.

Abstract: An air filter for effectively filtering bacteria, fungi and viruses from the air. The air filter comprising of a carrier substrate impregnated with iodine resins effectively immobilizes and attenuates bacteria, fungi and viruses contained in passing air. The air filter may be employed in combination with a multi-layered air filter to provide a filter which effectively purifies passing air of a variety of contaminants. The air filter provides a safe and effective method for the removal of bacteria, fungi and viruses from the air.

Abstract: A filter arrangement includes a tubular first filter element having a first media pack defining a first open filter interior and an air flow outlet. The air flow outlet is in gas flow communication with the first open filter interior. A housing construction has a gas flow inlet and a gas flow outlet. The air flow outlet of the first filter element is in gas flow communication with the gas flow outlet. A coalescer filter element is oriented in the housing construction in fluid communication with the gas flow inlet. A tubular second filter element is oriented in the housing construction and has a second media pack defining a second open filter interior. The second open filter interior is in gas flow communication with the gas flow outlet.

Abstract: The invention relates to a downdraft paint booth having an overspray filtering system integral with the floor grates, and to the floor grate filters themselves. The grates have a load bearing frame portion having enclosed within it an integral or removable recyclable filter. The filter is preferably metallic and of a construction that will withstand baking in a high temperature oven to reduce captured overspray particles to an inert ash. Alternatively, the combination floor grate filters may be cleaned of paint residue by immersion in a suitable solvent or chemical bath. The floor grate filters will have 95-99% efficiency at removing airborne particulates. Secondary filters may be used after the combination floor grate filters to remove any final over-spray passing the filters. Typically, the floor grate fillers will go through five to ten cleaning cycles before he secondary filters would need replacement.

Abstract: A portable air filter system having a manually operable spray pump for scenting the air flowing therethrough. The system includes an enclosure having an air inlet and an air outlet, a motor/fan assembly for moving air through the air inlet and out the air outlet, a plurality of air filters disposed between the air inlet and the air outlet, and a manually operable pump in fluid communication with a liquid scented material for scenting the air disposed between the air filters and the air outlet. A brush is attached to a pair of side walls of a wide portion of the enclosure and spans the air inlet. In use the brush aids in dislodging dust and lint from fabric materials.

Abstract: A make-up air handler for supplying outside air to clean environments such as clean rooms in semiconductor fabrication facilities includes a flow passage through which the outside air is passed. At least one filter is disposed to filter the outside air passing through the flow passage. The make-up air handler preferably includes all boron-free filters to prevent the introduction of boron into the outside air by the filters. The make-up air handler can include boron-free ULPA filters to provide highly clean boron-free outside air for supplying to clean environments. The make-up air handler can be operated in a normal manner at air velocities exceeding the rated velocities of the ULPA filters, without subjecting the ULPA filters to air velocities exceeding their ratings, due to the configuration and arrangement of the ULPA filters in the flow passage.

Abstract: In an aerosol filter having a number of coaxially disposed, approximately cylindrical filter areas, provision is made according to the invention for each filter area to have a metal gauze. Through the use of the metal gauze for the filter areas, the aerosol filter is simple to clean and is therefore reusable. In addition, such an aerosol filter is especially resistant to low and high temperatures and to corrosion.

Abstract: A ventilator hood including an air blower suitable to draw fumes emanating from a fume producing apparatus through a contaminate filter, a charcoal filter, and a HEPA filter including filter condition indicating means, fire suppression means, and special adapter plate means for directly connecting the ventilator hood to the fume producing apparatus.

Abstract: An apparatus for the removal of particulate matter from the gaseous product stream of an entrained flow coal gasifier which apparatus includes an initial screen, an intermediate screen which is aligned with the direction of flow of the gaseous product stream and a final screen transversely disposed to the flow of gaseous product and which apparatus is capable of withstanding at least a pressure differential of about 10 psi (68.95 kPa) or greater at the temperatures of the gaseous product stream.

Abstract: A system which reduces the transmission of noxious fumes into the surrounding air during the application of a heated liquid roofing product on a roof. A mobile tanker or kettle contains a supply of the heated liquid. The air space within the tanker or vessel above the liquid product communicates with a mobile filtration unit by a first duct. A rooftop carrier for the liquid product has a fume collection hood which communicates with the filtration unit by a second duct. A blower in the filtration unit creates negative pressure which draws the noxious fumes from the tanker or vessel and carrier through the ducts and into and through the filtration unit. The filtration unit has a series of airtight chambers mounted on a mobile truck bed, each containing a different type of filtering medium to remove various components of the noxious fumes as the fumes move through the filtration unit.

Abstract: An air filter for a vacuum cleaner to easily clear floors, carpets, chairs and so on includes a the main body having a motor and a deflation hole installed in a dust collector having an intake port, and a filter means provided between the dust collector and the main body, wherein the main body includes a fixing part formed in the middle of the bottom part to secure an outlet filter and having a peripheral stepped portion in a downward conic-shape to mount a fixing frame having a number of intake slit and the filter means to be installed to the fixing frame includes an activated charcoal filter, a dust removing filter and a static electricity filter to remove sludge, stink, offensive smell and gas generated from various materials in a room by means of these filters being easy to install in the vacuum cleaner.

Abstract: A filter frame and media capable of withstanding repeated heating to high temperatures in an oxidizing environment, and a method of cleaning the same for indefinite use in a method of operating industrial paint booths. Progressive density, heat resistant, and preferably metal media paint booth filters are provided for replacement of existing filters in industrial paint booths. The filters are structurally resistant to cyclic heating to high temperature in an oxidizing bake-off oven where the paint residue accumulated on the filters is reduced to ash. After cooling, the ash is removed, and the filters returned to service, and the cycle is repeated. The filter comprises a frame section and a mesh media section which has a plurality of mesh portions. The mesh portions are preferably arranged in a series M.sub.1, M.sub.n-1, M.sub.n, wherein n is a positive integer of 4 or more, that are sized with the free face area A.sub.

Abstract: 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 in conjunction with a removable and replaceable depth media filter, to form filter media. The preferred arrangement is configured so that the removable and replaceable depth media filter can be removed and replaced, without disengaging the first filter construction from a filter assembly or housing, if desired. Some preferred configurations and materials are described.

Abstract: A filter system utilizing a coalescing-type filter element with at least one end cap and a transport layer such that contaminants are filtered from a gas stream, coalesced and drained from the filter element completely exterior to any other component of the filter element. The filter element includes a drainage sleeve which may extend over and exterior to at least one end cap. The filter element may include a transport layer disposed exterior to a drainage layer extending between end caps. The present invention further includes a method for decontaminating a gas stream utilizing the filter system and filter element.

Abstract: An electronic equipment air conditioner and purifier for providing purified air to an electronic device. The electronic equipment air conditioner and purifier includes a housing including an air intake port and an air outlet port. A blower is positioned within the housing for drawing air into the housing through the air intake port. A filter is provided for filtering the air drawn through the air intake port by the blower to produce filtered air. Moisture is then removed from the filtered air by a humidifier and evaporator to produce filtered and dehumidified air. A hose is removably connected to the air outlet port for supplying the filtered and dehumidified air to the electronic device. The electronic equipment air conditioner and purifier also includes a control panel for manually controlling the speed at which the blower draws air through the air intake port, the temperature of the air drawn in and the humidity of the air.

Abstract: An introducer sheath includes a connector body having an inlet and an outlet; a flexible tube for intravenous use at the outlet, including a helical coiled spring having a plurality of coils, each coil spaced from an adjacent coil, and a thin cylindrical wall prepared from a protective coating composition completely surrounding the spring to define an inner and an outer wall surface, the cylindrical wall surrounding said spring having a substantially constant wall thickness throughout its length, the coating composition comprising a thermoplastic polymeric material dissolved in a solvent solution, the composition having a solids content ranging from about 4% to about 18%, and said solution comprising a solvent selected from the group consisting of tetrahydrofuran, dioxane, methyl ethyl ketone, dimethylformamide, cyclohexane, and mixtures thereof, formed on a helical coiled spring by dipping the latter therein and then drying at room temperature; and a valve assembly including a first elastic membrane having a