Abstract: To provide a method of handling DPF capable of ensuring an expected value of a catching function of reclaimed DPF and eliminating waste of useful metals included by DPF, DPF(1) mounted to a diesel engine for catching PM included in exhaust is reclaimed until being brought into a nonreusable state and remounted to the engine by at least once and in remounting, the DPF(1) is mounted such that the DPF(1) is mounted in the direction reverse to a direction of mounting at a preceding time.

Abstract: A device for detecting a failure of a filter used to clean a gas stream, in particular an exhaust gas stream, of soot particulates, including a chamber which is insertable into the gas stream to be cleaned in addition to the filter and which is at least partially closed by a filter body and has at least one opening through which gas entering the chamber through the filter body can exit the chamber, at least one gas sensor for determining the concentration of at least one component of the gas to be cleaned being arranged in the chamber, and at least one second gas sensor for determining the concentration of the at least one component of the gas to be cleaned being arranged outside the chamber.

Abstract: 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 adhesive layer permanently adhered to the inner surface of the filter panel. A thermochromic region is positioned on the outer surface of the filter panel which changes color as temperature increases. The thermochromic region includes an ink layer and a wax layer positioned atop the ink layer. The wax layer includes a thermochromic dye having a color different from the color of the ink layer. The color of the thermochromic dye blocks the color of the ink layer at an ambient temperature and is transparent to allow the ink layer color to be seen at an activation temperature. Therefore, the filter apparatus provides an indication when the filter is full and heat is building within the housing as a result.

Abstract: Improvements are provided to enable an air-curtain portal to be used for the triage and decontamination of persons who may have been exposed to toxic gas vapour or particulate material.

Abstract: 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 adhesive layer permanently adhered to the inner surface of the filter panel. A thermochromic region is positioned on the outer surface of the filter panel which changes color as temperature increases. The thermochromic region includes an ink layer and a wax layer positioned atop the ink layer. The wax layer includes a thermochromic dye having a color different from the color of the ink layer. The color of the thermochromic dye blocks the color of the ink layer at an ambient temperature and is transparent to allow the ink layer color to be seen at an activation temperature. Therefore, the filter apparatus provides an indication when the filter is full and heat is building within the housing as a result.

Abstract: The present invention provides device and method for controlling air cleaning operation, in which an air conditioner with an air cleaner is made to clean air effectively proper to different pollutants. The device includes a memory having a plurality of operation modes set and stored therein for controlling operation of a fan proper to characteristics of air pollution sources, first means for selecting one of the plurality of operation modes stored in the memory, and a controlling part for controlling the fan according to a control program of the operation mode. The method includes the steps of selecting one of a plurality of operation modes, changing setting of an operation time period of the selected operation mode, reading the selected operation mode from the memory, and changing the operation time period of the operation mode to the set value, and controlling the fan according to the value of the changed operation time period and the value of the operation mode read from the memory.

Abstract: An air cleaning apparatus includes an air cleaning unit at its upper and lower portions thereof which are independently operated to effectively and uniformly clean room air in a short period of time. The air cleaning apparatus includes a cabinet provided with first and second air cleaning units. The first and second air cleaning units are connected to each other, and are provided with a blowing unit and a filtering unit. First and second sensors are provided on the cabinet in such a way as to be spaced apart from each other, and to sense air pollution levels at opposite sides of a room. The air cleaning apparatus also includes a control unit. The control unit controls the first and second air cleaning units so that both the first and second air cleaning units are operated or either of the first and second air cleaning units is operated, according to data obtained from first and second sensors.

Abstract: An air purifier discharges air directly to a room without forcing the air to pass through a HEPA filter when the level of contaminations in the air, such as dust particles, is determined to be sufficiently low. The air purifier thus minimizes air pressure loss and attenuates operational noise caused by the HEPA filter, through which air passes. In an aspect, the air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a dosed state and an open state. The first filter removes contaminants from the sucked air in the dosed state, and allows the sucked air to pass smoothly through the air passage in the open state.

Abstract: An air cleaning apparatus includes an air cleaning unit moved in a vertical direction to clean room air, allowing the room air to be effectively and uniformly cleaned in a short period of time. The air cleaning apparatus includes a longitudinal cabinet to stand on a support surface. An air cleaning unit is installed in the cabinet to move in the vertical direction, and is provided with a blowing unit and a filtering unit to clean air. An elevating unit is provided at at least one of the cabinet and the air cleaning unit to move the air cleaning unit in the vertical direction. The air cleaning apparatus also includes upper and lower sensors, and a control unit. The upper and lower sensors are provided on upper and lower portions of the cabinet, respectively, to sense air pollution levels of upper and lower parts of a room. The control unit controls the air cleaning unit so that the air cleaning unit moves upward or downward, according to data obtained from the upper and lower sensors.

Abstract: A fluid filtration system, such as an ambient air cleaner, employs a measurement mechanism to determine the amount of fluid flow through the system. The measurement system provides data or actuates an indicator. The indicator may have a pointer to indicate fluid flow along a gradient display that contains numeric information and/or is color coded. Alternatively, fluid flow may be displayed electronically. The indicator may be protected within a separate housing that projects from a filtration unit housing or may be disposed within a recess of the filtration unit housing.

Abstract: An end of service life indicator (ESLI) device for a fluid filter is included on the filter and visually indicates when the life of the filter has expired. The ESLI indicates the depletion of the filter by changing the color density on a surface of the device to a color density having a well distinguishable contrasting pattern that is easily recognizable even by individuals who are color-blind. The contrasting pattern may express text indicative of the state of the filter.

Abstract: An air cleaner intake door is provided. An air cleaner with at least one sidewall and an opening defined in the sidewall has a door mounted over the opening. The door is rotationally movable between an open and a closed position and a cam extends from the door. A spring is in contact with the door for biasing the door towards a closed position.

Abstract: Air filter assemblies comprise an air filter housing an air flow passageway extending therethrough, and a connection flange to facilitate attachment with an air filter member. The air filter member comprises an annular air filter element disposed concentrically around the housing. The filter member has a closed top at one end and a retaining band at an opposite band that includes a connection base that is configured to attach with the housing connection flange. An attachment assembly is positioned over the housing connection flange and air filter member connection base to releasibly attach the air filter member to the air filter housing. An O-ring seal is interposed between the air filter housing and member to provide a leak-tight fit therebetween. A sound attenuating chamber is disposed within the assembly to control unwanted intake air noise therein. A vacuum monitor can be attached to the assembly to assessing the remaining service life of the air filter element without need for visually inspection.

Abstract: An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be toxic or otherwise harmful to people. A signal from a contaminant sensor is sent to a control arrangement which compares the actual sensed contamination of the air within the cab over time with a value from a performance map representing the performance expected from normal performance of the air circulating system of the cab. When the sensed contamination is higher than that of the performance map the operator is warned of a malfunction. The blower of the air circulating system may have its speed increased so as to pressurize the cab so as to exclude the entry of contaminated air through seals and other small openings of the cab.

Abstract: Filter media and filter structure or media pack can be engineered to exhibit high initial efficiency and to surface load particulate removed from a gaseous stream. The filter technology protects engine operation from ingested particulate and accumulates the particulate as a surface loaded layer visible on the surface of the structure. The particulate accumulates as a surface loaded layer until it achieves a certain depth of particulate or gray scale characteristic or color depth indicative of the end of the useful life of the filter prompting a change of the filter structure. The filter structure is characterized by its ability to surface load particulate, avoid accumulation of particulate in the depth media and enhance the characteristics of the material through surface loading. Such technology is particularly useful in light duty vehicle maintenance technology.

Abstract: A dust filter for a ducted air delivery system has a frame, a filter, an extension of rubbery thermoplastic material, and an integral lip. The frame defines an open mouth and a body portion formed of rubbery thermoplastics material reinforced with one or more stiffening elements. The filter material extends from sides of the frame to cover the open mouth. The intermediate extension of rubbery thermoplastic material extends outwardly from a joint with the body portion. The integral lip of flexible resilient material is joined to the intermediate extension. The lip of flexible resilient material is shaped to make a friction fit within the outlet of a duct to hold the dust filter therein.

Abstract: An exhaust filtration control system for creating environmentally protected zones. The system includes, a diverter valve, a valve actuator coupled to the diverter valve, a control switch electronically coupled to the valve actuator for switching the valve actuator between an engaged state and a disengaged state, a wireless transmitter, and a wireless receiver coupled to the control switch for receiving a signal from the wireless transmitter and for sending a signal to the control switch upon receiving a signal from the wireless transmitter.

Abstract: The invention provides a debris separation-filtration unit comprising a housing; an inlet that receives debris-laden air delivers the air in a tangential, centrifugal airflow-forming manner to the interior of housing; an inner shell that includes a number of airflow passageways; and a debris-capturing filter, the sides of which filter are at least substantially surrounded by the inner shell. Due to the formation of the centrifugal airflow and presence of the inner shell in the housing, only a portion of the debris particles entering the unit come in contact with the filter. The invention also provides debris collection, separation, and filtration systems comprising one or more of the separation-filtration units of the invention; debris collection vehicles comprising one or more of such units or systems; and related methods of collecting, separating, and filtering debris.

Abstract: A gas separator system for providing contaminant-free engine crankcase gas to a gas analyzer. The system has an inlet member for receiving the crankcase gas from the engine and an oil separator for separating at least a portion of the contaminants from the crankcase gas. A pump is arranged to draw the crankcase gas through the inlet member and move the separated crankcase gas to the gas analyzer.

Abstract: An inertial inlet particle separator system (14) for a vehicle engine (12) is provided. The system (14) includes a particle sensor (60) that generates a contamination signal. An inertial inlet particle separator (56) is also included in the system (14) and has a fluid parameter adjusting system (58) mechanically coupled within the inertial inlet particle separator (56). A controller (62) is electrically coupled to the particle sensor (60) and the clean fluid parameter adjusting system (58). The controller (62) adjusting a fluid parameter of the inertial inlet particle separator (56) in response to the contamination signal. A method of performing the same is also provided.

Abstract: A particulate filter system is provided including an exhaust system transporting emissions from an engine. A filter such as a diesel particulate filter is disposed in the exhaust system. An acoustic sensor is associated with the exhaust system for detecting one or more frequencies passing through the filter. The frequency corresponds to a filter state indicative of a clean, full, loading, or failed filter. One or more acoustic sensors may fluidly or mechanically coupled to portions of the exhaust system to determine the frequency caused by the exhaust flow through the filter. The acoustic emissions from the filter may be used to compare to a known filter state to determine the present filter state. Alternatively, more sophisticated mathematical approaches may be used in which processed filter information is compared to a known filter state to determine the present filter state.

Abstract: A personal tabletop-type air cleaner is provided which is user-friendly and can improve smoke sucking efficiency in a simple configuration. The disclosed personal tabletop-type air cleaner has a front opening portion to suck air containing smoke of a cigarette, a blower to forcedly feed air having been sucked into the front opening portions in a centrifugal manner, a pair of right and left peripheral opening portions each being placed in a fringe portion on the right and the left at a front of the air cleaner and forming an air curtain by emitting air fed forcedly from the blower ahead of the front of the air cleaner, a dust collecting filter being placed between the front opening portion and the blower to remove cigarette odor, and a deodorizing filter being placed between the blower and each peripheral opening portion making up the pair of right and left peripheral opening portions to remove cigarette odor.

Abstract: Devices for measuring at least one parameter of a medium flowing in a line, having an inlet conduit an outlet conduit, having the disadvantage in the prior art that liquids flowing into the inlet conduit can reach a measurement element and alter the measurement characteristic curve behavior of the measurement element. A device of the invention has, between the inlet conduit and outlet conduit, a deflection conduit with a separation element, by which the liquids are separated out and therefore do not reach the measurement element.

Abstract: Gas separation membranes, especially meniscus-shaped membranes for gas separations are disclosed together with the use of such meniscus-shaped membranes for applications such as thermal gas valves, pre-concentration of a gas stream, and selective pre-screening of a gas stream. In addition, a rapid screening system for simultaneously screening polymer materials for effectiveness in gas separation is provided.

Abstract: A filter maintenance monitoring method and a filter maintained thereby are provided , by which re-use of the filter by wash is smoothly and efficiently promoted. The filter includes that loaned from a filter owner to a filter user. The filter used for a predetermined purpose and having clogging of filter cloth by filtering dust in air is recovered to be washed for re-use. History data base stored in a storage portion of a computer is renewed based on wash history of the recovered filter. Then, re-use of the filter is decided based on the renewed history data base. Changes in the filter by damages or deterioration corresponding to the wash history are automatically grasped. Thereby, an efficient filter maintenance is realized.

Abstract: A device according to the related art for determining at least one parameter of a medium flowing in a line is unable to prevent pollutants from getting out of the line into the atmosphere. The device of the present invention has a filter which is able to take up the pollutants and thus prevent them from getting into the atmosphere.

Abstract: For cleaning of crankcase gas produced by an internal combustion engine (31), that is arranged for propelling a vehicle (30), use is made of a centrifugal separator (34) having a centrifugal rotor that is mounted on the vehicle. The cleaning efficiency of the centrifugal separator is changed by changing the rotational speed of an electrical motor (9), that is connected to a source of current on the vehicle and arranged for driving said centrifugal rotor.

Abstract: An exhaust filtration control system for creating environmentally protected zones. The system includes, a diverter valve, a valve actuator coupled to the diverter valve, a control switch electronically coupled to the valve actuator for switching the valve actuator between an engaged state and a disengaged state, a wireless transmitter, and a wireless receiver coupled to the control switch for receiving a signal from the wireless transmitter and for sending a signal to the control switch upon receiving a signal from the wireless transmitter.

Abstract: A method for inspecting the integrity of diesel exhaust filter by introducing air under pressure through one end of the structure and detecting the presence of air flow at an opposing end surface. The diesel exhaust filter is tested green.

Abstract: Provided is an oxygen supply device for common use in a vehicle and indoors, that generates oxygen and supplies the same to the vehicle or a place indoors, and can provide an oxygen concentration display operating in combination with the oxygen supply device for vehicle- or indoor-use. The oxygen supply device for generating oxygen of a constant concentration has a simple structure and operational mechanism and a compact case where various components such as an oxygen separator and a pump mechanism are contained to thereby allow a user to easily mount and dismount the oxygen supply device in and from a vehicle and a place indoors as necessary, and then carry the same by hand. The oxygen supply device has a display for enabling users to verify a current oxygen concentration so the user is reassured.

Abstract: An air purifier includes a cabinet, an electrically driven fan, a replaceable filter element, and an air quality sensor. A display provides a visual indication of the air quality condition. A microprocessor is programmed to control the speed of the fan automatically according to the air quality condition. The microprocessor also computes when the filter element must be changed by totalling the time of operation and its speed (which equals air quality) so that for example the filter element will be changed more often (used for less aggregate time) when the air purifier is operated in a poor quality environment.

Abstract: A system and method for passive hypoxic training provides a person with a low oxygen (hypoxic) environment. Oxygen sensors automatically monitor and control oxygen levels to maintain the altitude desired. CO2 levels are monitored and CO2 is eliminated so that the air a person breathes is substantially clean and fresh. Exposure to a high altitude environment produces physiological changes in a person's body, which becomes more efficient at absorbing and transporting oxygen. Using the present method and system, athletes obtain the benefits of sleeping at a simulated altitude in the user's own home for six to twelve hours, rather than traditional altitude therapies in which athletes spend two to three weeks at high altitude before an athletic competition to obtain similar benefits. This system allows for “live high train low” altitude training that has been shown in controlled studies to provide superior benefits to “live high train high” training.

Abstract: A filter device for the filtration of compressed air, which is provided with a filter means (6) able to be deinstalled for cleaning and/or renewal purposes. Furthermore there is a detection means (52) which renders possible detection of the filter means (6) and which is able to produce an electrical detect signal dependent on the result of a detection operation, such signal being able to be employed for suitable purposes.

Abstract: An air purifier has a housing, a motor, a fan, a filtering net, and a power plug. The motor and the fan are positioned in the housing. The filtering net is joined to the front of the housing. The power plug includes a rotatable member and a pair of conductive members; the conductive members have ring-shaped portions concentrically arranged in a chamber of the housing, and are electrically connected to the motor; the rotatable member is rotatably received in the chamber, and has a pair of copper strips, which stick out at outer ends for connection with a power socket, and which constantly touch a respective one of the concentric ring-shaped portions from inner ends in the rotation of the rotatable member for adjustment of the position of the air purifier.

Abstract: A slurry monitoring system (20) is provided. A filter (34) encompasses a filter chamber (36) containing a purge piston (66). During a monitor operation (100), the purge piston (66) is retracted, and slurry (32) enters the filter chamber (36) through the filter (34), then passes into an outlet pipe (60), where a characteristic of the slurry (32) is monitored by a monitoring device (62). During a purge operation (102), a flush valve (54) is opened to allow water (56) to pass into the filter chamber (36) through an inlet pipe (52). The purge piston (66) is extended to force filtered slurry (110) from the filter chamber (36). The water (56) dilutes filtered slurry (110) remaining in the filter chamber (36). The flush valve (54) is then close and the purge piston (66) retracted. This forces diluted slurry (140) to pass out of the filter (34). This purges the filter (34). Diluted slurry (140) also passes into the outlet pipe (60), which purges the outlet pipe (60) and monitoring device (62).

Abstract: An inertial inlet particle separator system (14) for a vehicle engine (12) is provided. The system (14) includes a particle sensor (60) that generates a contamination signal. An inertial inlet particle separator (56) is also included in the system (14) and has a fluid parameter adjusting system (58) mechanically coupled within the inertial inlet particle separator (56). A controller (62) is electrically coupled to the particle sensor (60) and the clean fluid parameter adjusting system (58). The controller (62) adjusting a fluid parameter of the inertial inlet particle separator (56) in response to the contamination signal. A method of performing the same is also provided.

Abstract: An arrangement used for filtering out conveying air when supplying fiber material to a processing machine is provided. The arrangement has an essentially vertical filling chute for the fiber material, the chute having an upper intake opening and a lower exit opening, a device with pneumatic fiber feed at the upper intake opening, and a floccule-forming device at the lower exit opening including a system of draw-in rolls and a fast-rotating opening roll. The chute includes at least one air-permeable surface for separating the fiber material from the conveying air. An evacuating device evacuates the filtered out conveying air. An exhaust air device is coupled to the evacuating device and has an air stream regulator which is connected to a control and regulating device. The conveying air stream is guided along the opening roll, and a partial air stream of the filtered out conveying air is guided into the exhaust air device.

Abstract: A compact, portable, lightweight, low power consuming, convenient, versatile and sterile laminar airflow device, useful in obtaining a workspace substantially devoid of airborne particulate contaminants, said device having a body (C) divided into an upper and lower chambers; the upper chamber housing one or more pre-filtration members (B), a motor (T) driving a fan (S), and one or more filters (U) located below the motor; and the lower chamber provided with a slideable front panel (M), a removable platform (X) located at the lower portion of the chamber and a perforated plane (N) placed on the removable platform.

Abstract: A system for filtering air entering the housing of a computer. A filter is placed in the path of air entering the computer housing. A timing program is installed on the computer to keep track of the total amount of time the computer has run since installation or service of the filter. After the computer has run for a predetermined amount of time, the program causes the computer to prompt the computer user to change or service the filter.

Abstract: A disposable filter for filtering exhaled gas in a breathing apparatus has a housing with an inlet and an outlet and a filter unit disposed in the housing. To increase the efficiency of the disposable filter a water trap is integrated with the housing, with water that condenses in the filter unit being collected in the water trap.

Abstract: A fluid treatment system is disclosed that includes a replaceable and/or serviceable fluid treatment cartridge for treating fluid passing therethrough, and a connector head configured to detachably support the fluid treatment cartridge. The cartridge includes a device for storing data related to the performance and/or identity of the cartridge, and a mechanism is provided to facilitate an exchange of data between the fluid treatment cartridge and a monitoring device configured to process the data.

Abstract: An automated filter changing device (20) includes a filter reel system (22). A motor (24) is connected to the filter reel system (22). An airflow sensor (26) is in an airflow of the filter reel system (22). A controller (28) is connected to the motor (24) and the airflow sensor (26). The airflow sensor (26) determines when the airflow is below an acceptable threshold. When the airflow is below an acceptable threshold, the controller (28) tells the motor (24) to index the filter reel system (22).

Abstract: This invention provides an improved method and apparatus for collecting a liquid overspray from a gaseous mist and separating the liquid from the gas stream. The invention has utility in a wide variety of chemical application processes such as to reduce the hazards and waste characterized by prior art methods and provide a mechanism for the in-line recycling of the overspray liquid. In a preferred embodiment, the present invention comprises a hooded recovery unit which is oriented above and about a conveyor system in which a workpiece travels through a spray zone in which a chemical or other liquid is applied to the workpiece. In such a situation, the present invention provides for the recovery of overspray liquid which would otherwise be wasted as the liquid or chemical is applied to the workpiece during the period in which the workpiece passes through the recovery unit. The system includes a spray application chamber, a conditioning chamber, and an overspray collection chamber.

Abstract: An intake filter (1) or a coalescing filter (4) of a compressor or vacuum pump, or an in-line filter has its identity recorded in a transponder (50, 54), memory chip or other device such as a magnetic or magnetostrictive strip. Interrogation e.g. by means of antennae (52, 56) enables a control unit (55) to verify the identity of the filter and to store the result in memory (57). A record can therefore be maintained of whether approved filters are being used and whether they are exchanged at approved intervals.

Abstract: To provide a method of handling DPF capable of ensuring an expected value of a catching function of reclaimed DPF and eliminating waste of useful metals included by DPF, DPF(1) mounted to a diesel engine for catching PM included in exhaust is reclaimed until being brought into a nonreusable state and remounted to the engine by at least once and in remounting, the DPF(1) is mounted such that the DPF(1) is mounted in the direction reverse to a direction of mounting at a preceding time.

Abstract: An air or oil dryer module is provided to remove or reduce moisture from a lubricant using a pressurized air supply to inject dry air into a lubricant sump. As the “dry air” or air with a minimized moisture content, gathers moisture from the lubricant a relative humidity sensor detects an increase in air moisture. At a pre-determined relative humidity level, a fresh supply of air is added into the lubricant sump, purging the higher relative humidity level air from the sump.

Abstract: A filtering device including a casing with an inlet space for liquid to be filtered and an outlet space for filtered liquid; a substantially cylindrical filtering element of the disposable type, which is removably placed within the casing to function therein as a liquid permeable partition between the inlet space and the outlet space; a unique information containing micro circuit or chip provided in the filtering element, adapted to function as an identification label and cooperating with a receiver provided in the casing, so as to provide for a periodical or continuous exchange of information between the micro circuit and the receiver. The micro circuit is embedded, at a circumferential location, in an annular seal provided at a terminal edge of the cylindrical filtering element, the seal enabling the filtering element to sealingly engage an annular seat between the inlet space and the outlet space.

Abstract: A system and method for determining the condition of a filter in a forced air filtration system includes a blower motor and a fan mounted for rotation with an output shaft of the blower motor. A load sensor is operably connected to the blower motor for monitoring an electric load of the motor. As the filter becomes increasingly laden with airborne particles, the electric load changes. The load sensor generates a load value dependent on the electric load of the motor which is compared to a predetermined value. When the load value reaches the predetermined value, a signal is generated indicative of a filter change condition.

Abstract: A chemical filter unit 10 is made of a chemical filter 12 and a filter life detection sensor 1. The filter life detection sensor 1 is provided with an adsorption state detection sensor 3 and a reference sensor 4 to which a flow of air is blocked. The sensors 3 and 4 are made of the same filter material as the chemical filter 12 with a pair of electrodes sandwiching the filter material. An oscillation circuit, in which the sensors 3 and 4 constitute a part of the oscillating conditions, detects changes in impedance of the sensors 3 and 4 based on the changes in oscillation frequencies. A measurement of the adsorption state detection sensor 3 is corrected with a measurement of the reference sensor 4 in order to remove effects of temperature and humidity, obtain a measurement corresponding to the amount of adsorption of chemical substances, and decide on the timing of replacing the chemical filter based on the corrected measurement.

Abstract: A primary object of the invention is to provide an adsorbent capable of efficiently eliminating lower aldehydes at ordinary temperature for a prolonged period of time and excellent in rate of elimination, heat resistance and safety.