1979results about "Membrane filters" patented technology

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path. The filter elements are disposed in an monolithic array. An inlet port arrangement is disposed at the filter housing leading to the inlet zone and is constructed and arranged to direct the fluid path into the filter housing in a manner so as to maintain a controlled turbulence at the inlet zone. The inlet port arrangement comprises a pair of inlet ports that are arranged in juxtaposition at the inlet zone and each having one end where the fluid flow enters. Embodiments that are considered as falling under the scope of the present invention include 1. Single inlet / two or more outlets; 2. Two or more inlets / single outlet, or 3. Two or more inlets and two or more outlets.

Mobile or stationary air filter (L) or room fan (RL) according to Figure 1, comprising an outer wall (5), a (2) for generating an airflow (3) which is guided through an air filter material (1.1), an air inlet (2.1) and an air outlet (2.2), wherein the air filter material (1.1) contains poly(styrenesulfonic acid) (sulfonic acid biocide) (1.3) cross-linked with divinylbenzene and / or an acidic salt (1.3.1) (sulfonic acid biocide salt) of the sulfonic acid biocide (1.3) with biocidal cations, wherein the sulfonic acid biocide (1.3) and / or sulfonic acid biocide salt (1.3.1)(i) are positively and / or materially bonded to and / or in inert carriers and, in the fixed state, are in direct contact with carrier materials (1.1.7) on and / or in which biocidal Metal microparticles of a mean particle size d50 of 0.1 µm to <1,000 µm are fixed, and / or (ii) with carrier materials (1.1.7) on and / or in which biocidal metal microparticles of a mean particle size d50 of 0.1 µm to <1.000 µm are fixed, are mixed; its use and methods for the production and environmentally friendly disposal of air filter materials (1.1).

A fluid strainer that is meant to remove debris from a fluid stream and including a housing having in inlet port defined at an inlet wall of the housing and an outlet port that is opposite to the inlet port and that is defined by an outlet wall of the housing; the housing defining an interior chamber through which the fluid flows; a strainer basket that is disposed within the housing chamber; the strainer basket having an open inlet end into which the fluid flows from the housing inlet, opposed sidewalls including a pair of tapered outlet walls that merge and direct the fluid flow to the housing outlet port and an outlet end wall; and a bar that is disposed within the housing that is located adjacent to and across the outlet port for spacing the outlet end wall of the strainer basket from the housing outlet wall.

An environmental control system for a building, the system including a vent. The vent includes one or more louvers configured to change position between an open position and a closed position to permit air from the air duct to enter a zone of the building or stop the air from entering the zone and a vent circuit configured to operate the one or more louvers based on one or more control commands. The system includes a controller device including a processing circuit configured to receive a selection of an operating profile from a plurality of predefined operating profiles for the vent, each of the plurality of predefined operating profiles indicating an intended use of the zone, determine, based on the operating profile, the one or more control commands, and cause the vent circuit to operate the one or more louvers based on the one or more control commands.

Materials (1) free of heavy metals, except silver and iron, in particular filter and building materials (1) according to Figure 1 for the sequestration of carbon dioxide by mineralization, comprising a solid inorganic material (1.1) comprising or consisting of alkaline earth oxides and / or hydroxides (1.1.1) or a solid inorganic mixture (1.1) comprising or consisting of alkaline earth oxides and / or hydroxides (1.1.1) and a further solid inorganic component (1.1.2) which forms sparingly soluble carbonates with carbon dioxide and / or which adsorbs carbon dioxide, wherein the solid inorganic material (1.1) is on and / or in a support material (2) selected from the group consisting of gas-permeable biochars (2.1) and gas-permeable, biodegradable solids (2.2), fixed using an inorganic or biodegradable liquid adhesive (3) or hot melt adhesive (3) or biodegradable double-sided adhesive tape (3) based on a biodegradable solid (2.2), or in bulk (1.1) fixed by a gas-permeable container (4) made of solids (2.2); filters (5) and filter devices (6) containing filter materials (1) and components (19) that can be made from building materials (1); methods for their manufacture and disposal and their use.

A filter unit includes a body portion that receives a water filter. An engaging portion is coupled to the body portion. A bypass actuator rotates relative to the engaging portion to rotationally and axially operate a bypass valve of a fluid manifold. The bypass actuator drives axial engagement of the engaging portion with a valve assembly of the fluid manifold. The bypass actuator extends through the body portion and the engaging portion.

The invention relates to an air filter. A filter housing has a fixed support element. Flow openings are formed between the struts of the flat support grid. The support element serves to support a filter element. The filter element can be detachably connected to the support element.

Systems, devices and methods are provided for producing fibrous materials and products, such as filters. A system comprises a first device for generating one or more fiber stream(s), and a second device for isolating nanoparticles within a gaseous medium. The second device forms the nanoparticles into a stream and feeds this stream into the fiber streams to form the fibrous material. This distributes the nanoparticles more uniformly throughout the fibrous material. In addition, the nanoparticles increase the overall surface area within the material, which, in certain applications, increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. Filters produced with these systems and methods are capable of withstanding rigorous conditioning, which allows the filter to achieve substantially the same level of filtration performance throughout the lifetime of the filter.

Filter media and filters, such as air filters, residential air filters, commercial air filters, face masks, gas turbine and compressor air intake filters, panel filters, and the like, are provided that comprise a plurality of fibers with a silicone-based coating. The silicone-based coating comprises a silicone compound at least about two percent by weight of the coating. The silicone-based coating may include a reactive silicone macroemulsion and a surfactant. The silicone-based coating increases the efficiency of the filter at capturing contaminants, particularly contaminants in the E2 and E3 particle group range, without compromising other important characteristics of the filters, such as cost, longevity, dust holding capacity, and the pressure drop or air permeability of the filter.

In some examples, a filter assembly may include a filter including a first gasket having a first channel adjacent to a first side of the filter and a second gasket having a second channel adjacent to a second side of the filter. The first gasket and the second gasket may include a beveled surface adjacent to the filter. The first channel and the second channel may include a diameter of from about 0.01 mm to about 0.5 mm. A finger tightening system may securely hold the filter without any leaks.

The present application proposes an air cleaner including a blower configured to inhale air from an outside, filter the inhaled air, and discharge the filtered air; a flow adjusting device disposed above the blower, wherein the flow adjusting device is configured to inhale the air discharged from the blower, adjust a discharge direction of the inhaled air and discharge the air therefrom to the outside in a adjusted direction; and a guide member having one end passing through an upper surface of the blower and received in the blower, and the other end connected to the flow adjusting device. The guide member is configured to retract into an interior of the blower or extend from the upper surface of the blower to induce position change of the flow adjusting device. The angle defined between the upper surface of the flow adjusting device and the upper surface of the blower increases or decreases primarily based on an extent to which the guide member extends from the blower.

The present invention relates, in general terms, to a face mask. The present invention also relates, in general terms, to composite material, iron-iron oxide compositions and their methods of fabrication thereof. In particular, the iron-iron oxide composition comprises a cashew testa extract and iron particles and / or oxide core-shell particles. The iron-iron oxide composition can be used as an anti-microbial composition.

The invention relates to an air filter with an annular filter element. The filter element can be inserted into a housing transversely to its longitudinal axis. The housing has at least one projection which secures the axial position of the filter element in the installed state. For this purpose, the projection overlaps a securing section of the filter element in a radial direction. The projection can engage in a spread fold of the filter element. Advantageously, a first projection is formed on a housing pot and a second projection is formed on a mounting cover. The mounting cover serves to close a mounting opening in the housing pot through which the filter element can be inserted.

A filtering device 1 comprising a funnel 3, a filter cartridge 7 and a cup 5, comprises first connecting members 76 for directly connecting the filter cartridge 7 to a lower end of the funnel 3. According to the invention, the filter cartridge 7 is accommodated in the cup 5, and the filtering device 1 further comprises second connecting members 73, for directly connecting the cup 5 to the filter cartridge 7 to form a filter unit 8 that is held in an operating position at the bottom 33 of funnel 3 only by the first connecting members 76. The tolerance chain is minimized, since only respective two components need to be matched. Coupling can be carried out in a single pass, by inserting the filter cartridge into the cup and then coupling the filter cartridge with the bottom of funnel 3, e.g. by performing a single rotary movement.

A pillar-shaped honeycomb structure, comprising an outer peripheral side wall; first cells having an opening on the first end surface and having a sealing portion on the second end surface; and second cells adjacent to the first cells with partition walls interposed therebetween and having a sealing portion on the first end surface and having an opening on the second end surface; wherein the outer peripheral side wall, the partition walls, and the sealing portions are fired, and comprise cordierite as a main component and one or more sintering aids selected from ceria, zirconia, and titania; wherein in the partition walls, assuming an average porosity of a portion in a range A, and a portion in a range B is P1 (%); and assuming an average porosity of a portion in a range C is P2 (%), −4≤P1−P2≤7 is satisfied.

The invention discloses a cellulose fiber-based sandwich structure filter material for removing micro-plastics and a preparation method of the cellulose fiber-based sandwich structure filter material, and belongs to the field of micro-plastic filtration. The preparation method comprises the following steps: (1) uniformly mixing cellulose long fibers and cellulose short fibers, and then carrying out suction filtration to respectively prepare an upper-layer fiber membrane and a lower-layer fiber membrane; (2) preparing a covalent cross-linking mixture from cellulose nanofibers as a base material, a silane coupling agent, an amino-containing polymer and water; (3) coating a fiber membrane with the covalent cross-linking mixture, and assembling to obtain a sandwich structure; and (4) freezing the obtained sandwich structure, and drying at normal pressure to obtain the cellulose fiber-based sandwich structure filter material. The obtained cellulose fiber-based sandwich structure filter material can effectively filter multi-scale micro-plastics in a graded manner, can effectively filter various micro-plastics and micro-plastics in various real water samples, and provides a novel environment-friendly solution for micro-plastic pollution abatement.

The invention relates to a filter element (10) for filtering a fluid, in particular air, comprising at least a filter medium body (12) with a non-closed cross-section and a filter medium (14) arranged in folds (16), in particular in a zigzag pattern, along a longitudinal extension (50) of the filter medium body (12), wherein fold tips (18) form a first end face (22) and fold valleys (20) form a second end face (24) opposite in a transverse extension (52) of the filter medium body (12), with fixing elements (80) which extend between the folds (16) in the transverse extension (52) and fix a distance between the folds (16), with a first edge element (26) at least partially circumferentially around the first end face (22) and a second edge element (28) at least partially circumferentially around the second end face (24). The filter medium body (12) has at least one of its end faces (22, 24) a notch (40, 44) whose length (42, 46) in the transverse extent (52) is at least a part of the transverse extent (52) of the filter medium body (12).

A system for cleaning, zeroing, and preventing air pollution in indoor space includes several gas detection devices, a central control monitoring device, and several gas exchange and filtration devices. The gas detection devices detect and output indoor and outdoor air pollution data. The central control monitoring device receives the outdoor and indoor air pollution data to perform an intelligent computation and comparison, locate an air pollution location in the indoor space, and transmit a control command intelligently. Each of the gas exchange and filtration devices is combined with a smart switch for the control command to control the gas exchange and filtration devices to be enabled, so that the air pollution is filtered and exchanged by the gas exchange and filtration devices, thereby allowing the indoor air pollution data detected by the gas detection devices in the indoor space to be a safety detection value.

An assembly for preventing debris or dust from entering a motor used to pass cabin air in a vehicle has a housing having a first conduit opening to a surface of the housing and a second conduit opening to another surface of the housing, an air filter received within the interior of the housing and positioned between the first and second conduits, and a body removably received in the interior of the housing. The body is interposed between the air filter and the surface of the housing and overlies an opening of the first conduit so as to block debris or dust from entering the motor. The air filter is adapted to filter air from the second conduit as the air is drawn through the air filter by the motor. A handle is integrated with or affixed to the body so as to extend outwardly of the housing.

An integrated oil filtering and oil storage device and a fully automatic control method. The integrated oil filtering and oil storage device comprises a waste oil tank (400), a first clean oil tank (200), a second clean oil tank (300) and a vacuum oil filter (100), wherein the waste oil tank (400) is provided with a fourth liquid level switch (401) and a fifth liquid level switch (402), which are used for determining the liquid level in the waste oil tank (400) and controlling the start or stop of an oil replenishment process; the first clean oil tank (200) is provided with a first liquid level switch (201) and a second liquid level switch (202), which are used for determining the liquid level in the first clean oil tank (200) and controlling the start or stop of first oil filtering and oil injection processes; the second clean oil tank (300) is provided with an eighth liquid level switch (302) and a ninth liquid level switch (303), which are used for determining the liquid level of clean oil in the second clean oil tank (300) and controlling the start or stop of second oil filtering and oil injection processes. The device has the functions of oil filtering, waste oil storage and clean oil storage; and by means of the liquid level switches, a fully automatic control process is achieved without requiring manual operation, and the functions of automatic oil filtering, automatic clean oil storage and automatic waste oil storage can be achieved, thereby avoiding the risks of device malfunction and misoperation.

A filtering apparatus for filtering a plastic melt. A filter pin is received in an axially displaceable and rotatable manner in a pin receptacle of a housing. The filter pin has a filtering device which, in an operating position of the filter pin, is arranged between inlet and outlet channels of the housing and connects the inlet channel to the outlet channel, as well as a discharge channel, which, in a starting position of the filter pin, is flow-connected to the inlet channel and leads past the filtering device to a discharge outlet of the filter pin. An inlet port of the discharge channel in the operating position of the filter pin is rotationally offset relative to the inlet channel of the housing and, the inlet port of the discharge channel in the starting position of the filter pin is arranged so as to overlap with the inlet channel.

The present application relates to a separator for separating solid particles from a process gas stream conducted multiple times through a working machine, the separator having: a process gas inlet through which a particle-carrying process gas discharged by the working machine is fed to the separator; a filter-free separation element for reducing particle loading in the process gas; a process gas outlet that discharges a portion of the process gas having the reduced particle loading to the working machine; the separator also has a bypass flow filter that filters another portion of the process gas having the reduced particle loading to provide a filtered bypass flow and a bypass outlet downstream thereof that discharges the bypass flow of the filtered process gas; the separation element comprises a cyclone separator and a blocking element at the downstream of the cyclone separator; a tube having an end-side access opening is provided as a blocking element, which tube is positioned as an insert tube in the region of a cyclone eye of the cyclone flow; and the insert tube passes through the cyclone flow.

The present invention relates to a non-woven filter media (100, 200) comprising: - a first melt-blown layer (102, 202) comprising fibers made from a polymer material, wherein the polymer material comprises a thermoplastic resin and at least one of a charge adjuvant and a nucleating agent; - a second layer (104, 204); and - a third layer (106, 206) arranged between the first layer and the second layer, the third layer being made of electrospun nanofibers. The present invention also relates to a filter element comprising this filter media and to a bag filter for a heating, ventilation and air conditioning system, where the bag filter comprises the filter media or the filter element.

To provide a manufacturing system that can maintain a low dew point inside the enclosure while improving maintainability. [Solution] The manufacturing system comprises an enclosure maintained at a predetermined dew point, a solid-state battery manufacturing device housed inside the enclosure, and a fan positioned to be exposed to the outside of the enclosure and used to expel air from inside the enclosure to the outside.

A filter capable of automatically cutting off gas flow, including: a housing (1) with a cavity, a filter element (2) disposed in the cavity, a blocking mechanism disposed in the flow channel (13), and an unblocking member (23). The housing is provided with an inlet end (11) and an outlet end (12). The filter element (2) is provided with a first chamber (21). A second chamber (23) is formed between the filter element (2) and the housing (1), and a flow channel (13) is disposed between the first chamber (21) and the inlet end (11). The blocking mechanism has an unblocking state in which the blocking mechanism is cooperated with the unblocking member (23) to allow a gas flow to flow out of the flow channel (13), and a blocking state in which the blocking mechanism prevents the gas flow from flowing out of the flow channel (13).

A filtration device (1), a filtration system (100) and a method (200) for operating a filtration device are provided. In the disclosed filtration device (1), a stationary control disk unit (30) is provided, which is arranged stationary relative to a filter drum (10) and a sealing disk (20) and which comprises a control disk body (32) with a plurality of fluid control through holes (40), the fluid control through holes (40) comprising at least one initial cake formation through hole (42) and at least one main cake formation through hole (44), the at least one main cake formation through hole (42) and the at least one initial cake formation through hole (44) being separated from each other by a partition wall (34a), and a fluid connection unit (60) is also provided, which comprises a plurality of fluid lines connected with the plurality of fluid control through holes (40) of the control disk unit (30, 30'), wherein the plurality of fluid lines comprises a main filtrate line (64) connected to the at least one main cake formation through hole (44) and an initial filtrate line (62) separate from the main filtrate line (64) and connected to the at least one initial cake formation through hole (42), wherein the at least one main cake formation through hole (42) and the at least one initial cake formation through hole (44) are configured and arranged in the control disk body (32) to be connected to the one or more filtration cells (12), which are to be at least partially submerged among the plurality of filtration cells (12), via the plurality of sealing disk through holes (24) so as to receive and discharge filtrate from said one or more filtration cells (12) and to direct filtrate separately into the main filtrate line (64) and the initial filtrate line (62).

A laundry care apparatus according to an embodiment may include: a laundry accommodating portion for accommodating laundry; and a fluff cleaning device combined with the filtering member and configured to clean fluff filtered on a surface of the filtering member. The fluff cleaning device may include: a brush portion, a front end portion of which is provided to rotate between a first position and a second position along an inner circumferential surface of the filter member; the fluff storage box is arranged to accommodate the fluff removed by the brush part; the chamber door is arranged to open / close the fluff storage box; a driving unit configured to rotate the brush portion; and an operation assembly configured to move the chamber door in response to an operation of the driving unit.