Abstract: A tetrafluoroethylene polymer is provided in an air filter medium having a pressure loss that can be reduced and made uniform at a plurality of positions. The tetrafluoroethylene polymer may also be provided in an air filter medium, a filter pack, or an air filter unit. The tetrafluoroethylene polymer has drawability and non-melt processability. The tetrafluoroethylene polymer has a ratio S2/S1 of 0.60 or more, where S2 represents an endotherm mJ/mg in a range of T0° C. or higher and 350° C. or lower, T0° C. is a temperature 2.5° C. lower than a temperature Tp° C. (340?Tp?345) at which a minimum point is given on a heat-of-fusion curve obtained by measuring an unbaked polymer for measurement having no history of heating to a temperature of 300° C. or higher using a differential scanning calorimeter at a temperature-increasing rate of 2° C./min, and S1 represents an endotherm mJ/mg in a range of 320° C. or higher and T0° C. or lower.

Abstract: A composite filtering medium comprising a precision fabric, of the type with weft and warp, on the surface of which nanofibres are deposited by electrospinning. A method for producing the composite filtering medium, comprising a step of electrospinning for formation of nanofibres and a subsequent step of deposition of said nanofibres on a base fabric; the method comprises injection of the material for formation of the nanofibres, dissolved in a solvent or mixture of solvents, through a nozzle in order to spread it on an electrode; the method comprising application of a difference of potential between the nozzle and an electrode; the nanofibres being formed as a result of evaporation of the solvent or mixture of solvents, due to the electrical field, and stretching of the polymer deposited on the electrode, by means of the nozzle; the nanofibres thus formed being subsequently stretched and deposited on said base fabric.

Abstract: A filter cleaner and an air-processing apparatus including a filter cleaner are provided. The filter cleaner may include a housing that forms an external appearance and having a suction hole formed in a first side thereof and a discharge hole formed in a second side thereof, a moving gear rotatably disposed in the housing and configured to move the housing, a gear motor configured to rotate the moving gear, a dust container disposed so as to be introduced into or withdrawn out of the housing and configured to store foreign substances introduced thereinto through the suction hole and to accommodate an agitator rotatably disposed therein, an agitator gear disposed inside of the housing to rotate the agitator, an agitator motor disposed inside of the housing to operate the agitator gear, and a suctioner disposed inside of the housing to induce air to flow into the dust container through the suction hole.

Abstract: A filtering material for air filters, the filtering material including a base material; and an enzyme-containing antibacterial material, an inorganic anti-allergenic material, and a fungal inhibitor, all being supported on the base material.

Abstract: An apparatus for humidifying a flow of pressurised, breathable air includes varying a first pressure of the flow of breathable gas to vary a level of thermal engagement between the conductive portion of the reservoir and the heater plate, varying a height of the variable portion varies a level of thermal engagement between the conductive portion of the reservoir and the heater plate, use of a humidifier reservoir base component with a maximum water capacity substantially equal to the predetermined maximum volume of water of the humidifier reservoir or the use of intersecting inlet and outlet axes.

Abstract: An air supply system including a conduit for channeling a flow of air therethrough, wherein the flow of air has microorganisms entrained therein. The system also includes an anti-microbial filter in flow communication with the flow of air. The anti-microbial filter includes a plurality of atomically sharp surface features for non-selective lysing of at least some of the microorganisms that contact the anti-microbial filter.

Abstract: A flange unit for a filter unit for positioning in a water treatment device, the water treatment device including a water reservoir and a suction head. The flange unit includes a base plate having a central recess for accommodating a filling piece of the suction head, a connecting unit for detachably connecting the flange unit to an inner side of the water reservoir, a closure element for closing the recess, and a handle unit for detaching the connecting unit from the flange holding device and for carrying the filter unit.

Abstract: Systems and methods for crude oil separations including degassing, dewatering, desalting, and stabilization. One method includes separating crude oil into a crude oil off-gas and a partially degassed crude oil output; compressing the crude oil off-gas; applying the compressed crude oil off-gas for indirect heating through reboilers of the partially degassed crude oil output; and directly mixing with the crude oil a compressed atmospheric pressure gas. In some embodiments, multiple reboilers are used. In some embodiments, heat exchangers are used. Aftercoolers are used after the compressor to cool the gas; knockout drums are used after the coolers to separate liquids.

Abstract: The disclosed pre-concentrator comprises: a base substrate having a trench; a metal layer conformally disposed along the inner surface of the trench; and a three-dimensional porous nanostructure disposed on the metal layer in the trench and having aligned pores connected to each other in three dimensions. The pre-concentrator can improve the concentration performance of a sample and the thermal desorption efficiency of a concentrated sample.

Abstract: A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. The elements are usable in a dust collector having a dirty air inlet, a clean air outlet, and a tubesheet dividing between an unfiltered and a clean air volume. An element is removably mounted and sealed within the tube sheet. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member. A method of servicing a dust collector includes removing a first filter element from the tube sheet in the housing, and then sealing a second filter element against the tube sheet by orienting at least one projection extending from a plane of the tube sheet into a channel defined by a gasket member secured to the second filter element. An axial force is exerted to form a seal between the gasket member and the tube sheet.

Abstract: A gas separator for removing suspended gas from a fluid is provided. A plurality of pipes define an overall fluid pathway that includes: a first fluid path from the first fluid chamber to the third fluid chamber, the first fluid path passing through the second fluid chamber without interacting with contents the second fluid chamber, the first fluid pathway being narrower than the first fluid chamber such that fluid flows through the first fluid pathway faster than through the first fluid chamber; a second fluid path from the third fluid chamber to the second fluid chamber, the second fluid path extending at least partially along an exterior wall of the second and third fluid chamber; and a third fluid path from the second fluid chamber to the fourth fluid chamber, the third path passing through the second fluid chamber without interacting with content of the second fluid chamber.

Abstract: This invention provides a Mud Gas Separator design (MGS) which prevents gas from being discharged into the shaker/mud pit rooms. It eliminates the risk of suffocation of the personnel working in these areas and the fire/explosion/environmental risks of the current MGS designs. The Mud Gas Separator design of two MGS/liquid seals (43/76 & 57/77) in series automatically prevents gas being discharged into shaker and mud pit rooms by allowing the DIP tube liquid seal (76) of the first MGS (43) to blow-out safely into a containment chamber (49) with the second liquid seal (77) remaining intact preventing any gas from being discharged into the shaker/mud pit rooms. A sensor system (55) at the top of the outer casing of the dip tube (52) will identify when there is a liquid seal blowout event and isolate the MGS to prevent further gas releases.

Abstract: A filter system includes a tube sheet defining a plurality of holes in fluid communication with a plurality of filter bags. The system also includes a rotating assembly having an arm defining one or more outlets to provide pressurized air from an air source toward the tube sheet in response to pulsing one or more actuators. A motor is operably coupled to the stationary assembly and the rotating assembly to rotate the arm about an axis at a preset rotational speed. A controller is operably coupled to the motor and the one or more actuators to provide pulse commands based on a pulse interval and a jog interval. The pulse interval and the jog interval may be determined based on a measured rotational speed of the arm, which may be redetermined during operation.

Abstract: The subject matter of the invention is a filter element (13) for insertion into a vacuum cleaner, with an upper side (14), a lower side (15) which lies opposite the upper side (14), a filter body (19) which extends from the upper side (14) to the lower side (15) and which forms a wall (26) of a clean air space which is situated between the upper side and the lower side, and with a conveying opening (17) which is arranged on the upper side (14), opens into the clean air space, and through which an air flow which is driven by way of the vacuum cleaner can be conveyed. According to the invention, a deflecting surface (20) which extends in the direction of the lower side (15) is arranged in the clean air space below the conveying opening (17), which deflecting surface (20) is configured to deflect an air flow which is introduced through the conveying opening (17) in the direction of the wall (26) of the clean air space.

Abstract: An apparatus for treating a respiratory disorder in a patient includes a blower configured to generate a supply of pressurized respiratory air to the patient via an air delivery tube leading to a patient interface; a dock with a heater plate; and a reservoir comprising a conductive portion configured to thermally engage the heater plate.

Abstract: An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

Abstract: Embodiments of the present invention provide a hollow cylindrical filter for removing efficiently foreign substances from fluids. This is performed by forming complicated passages including an axial direction and a radial direction in the filter. The hollow cylindrical filter is formed by winding a metal wire rod in a spiral and multilayered manner. The metal wire rod includes a recess formed throughout the entire length in a longitudinal direction, or recesses repeated along said longitudinal direction. Some wire rod layers extend in an axial direction of the hollow cylindrical filter while the adjacent wire rod layers extend in an intersecting direction, thereby forming a plurality of communication paths for communicating between the overlapping wire rod layers. Additionally, a space is formed between the recess of one wire rod layer and another adjacent wire rod layer, allowing the plurality of communication paths to communicate with each other.

Abstract: The air filter systems described herein include one or more pulse collectors and pulse generators aligned along pulse axes. The pulse generators and filter elements may be arranged along a pulse distance as measured from a pulse outlet to a filter element opening. The pulse collectors and the filter elements may have openings with a relationship between them within parameters described herein. The pulse collectors may have a relationship between their hydraulic diameter and their length within parameters described herein. The pulse collectors may include a filter section and a pulse section that meet at a junction along a length of the pulse collector. The pulse sections may have a hydraulic diameter that increases when moving from the junction to the tube sheet opening of the pulse section. The filter sections may have a hydraulic diameter that remains constant when moving from the junction to the filter end opening of the filter section.

Abstract: An air filter device of an industrial machine in which an air filter is arranged in a filtered portion of the industrial machine is provided, the air filter device includes: a first operation unit which transports the long air filter toward the filtered portion; a second operation unit which collects the air filter transported from the first operation unit and used in the filtered portion; and a control unit which controls the drive of the first operation unit and the second operation unit and the control unit includes a first determination unit which determines whether or not the air filter in the first operation unit is about to run out or runs out, and outputs, when the first determination unit determines that the air filter is about to run out or runs out, a signal indicating that the air filter needs to be replaced.

Abstract: Rotating coalescer crankcase ventilation (CV) systems are described. The described CV systems utilize a pumping pressure created by the porous media of the rotating coalescer to maintain positive recirculation of filtered blowby gases through a potential leak gap between a static housing inlet and a spinning component of the rotating coalescer. In some arrangements, the porous media is fibrous media. The filter media may be pleated or non-pleated. The positive recirculation caused by the pressure balance prevents unfiltered blowby gases from bypassing the media of the rotating coalescer from the upstream side to the downstream side of the filter media through the gap. During operation, the pressure balance between the upstream side and downstream side of the filter media maintains the positive recirculation, which in turn maintains a high filtration efficiency.