Abstract: Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex. A convergent second wall section terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical divergent section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter element and defining the filter device outlet. The housing and filter element define therebetween first and second frustoconical annular fluid flow chambers of successively diminishing cross-sectional radial thickness in the direction of downstream fluid flow.

Abstract: A skull-shaped air filter housing comprising a housing removably attached to a fitting. A jaw is hingedly attached along a lower edge of a face on the housing. The face has eye intake(s), a nose intake, and a jaw intake. When the jaw is open, air enters a housing cavity through the jaw intake. Means of rotating the jaw are disclosed, including cable actuation, spring biasing, and pneumatic actuators. The housing may contain a light for aesthetic purposes. The fitting may incorporate a fitting lumen diameter reduction at its intake to cool and compress air sent to the carburetor. When ram air enters the skull-shaped air filter housing and is sent to the carburetor, it is compressed and therefore denser, and fuel in the carburetor bowl is also compressed, resulting in a power increase in the engine.

Abstract: An air cleaner assembly 10 includes a filter located within a housing 12 between an air inlet 20 and outlet 22 for filtering airflow therebetween. The air inlet 20 extends from the housing 12 to communicate with an air intake port located at a vehicle location where fresh air is available. A resonator device 28 is mounted within the housing 12. The resonator device 12 includes a resonator volume 30 and a tuning neck 32. The resonator volume 30 fits into the housing 12 to reduce bulk and readily lend itself to adaptation to space requirements. The tuning neck 32 is mounted within the outlet 22 such that noise and vibration are communicated directly to the resonator device 28.

Abstract: A panel filter element having pleated filter paper media and precut gasket made of polyester felt is mounted in a tray inserted into the air intake housing of an internal combustion engine, wherein the air intake housing is made of NYLON® material. By having a peripheral gasket made of polyester felt, the gasket does not adhere to portions of the housing and tray. This allows the panel filter element to be easily removed from the housing. This is an improvement over polyurethane gaskets which adhere to the NYLON® of the housing when NYLON® and polyurethane are exposed to engine heat.

Abstract: An integrated sampling device with liquid eliminator is provided. The device includes a body with integrated valving. A liquid eliminator device is provided within the body and interposed in a flow path such that gas will pass through and liquid will not. The gas will then be conducted to a sampling device while the liquid will pass through an exhaust port back to the source of fluid. An inlet valve is also provided to control the flow of fluid from the source to the liquid eliminator element. An outlet valve may be provided to control liquid back to the source.

Abstract: The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.

Abstract: An air filter and corresponding filter element for use in an internal combustion engine are disclosed. The filter element has a seal bead made of an elastomeric material that forms the frame of the filter element. A pleat block, made of a filter media, is molded into the seal bead in a first area of the filter element and a baffle is located in a second area of the filter element to protect the pleat block from wetting. A channel is formed in one side of the seal bead which allows the filter element to be retained during assembly without the use of fasteners and a surface is formed opposite the seal bead that in conjunction with the channel seals the filter element within the air filter when the air filter is fully assembled. The air filter has an intake silencing chamber that is located to receive outside air before it is provided to the pleat block and a sealed flow path is created from the intake silencing chamber to the pleat block by a third area of the filter element.

Abstract: A filter system, including a folded filter (1) and a cover (2) of a filter housing (3), the folded filter (1) and the cover (2) forming a preassemblable unit (4) and being essentially sealingly joined to each other so as to be detachable without destruction.

Abstract: A filter product includes a filtration media combined with a multi-component frame assembly that can effectively support the filtration media in place proximal to its edges and in accordance with its desired orientation and wherein the assembly can be selectively taken apart to provide access to the filtration media by way of a releasable lock connection. Preferably, a snap-fit releasable locking system is incorporated within the frame design. The present invention is particularly applicable to filtration media comprising pleated filtration media. Such support features include rack-like media engagement elements, which elements are advantageously provided so as to preferably engage the filtration media proximal to its side and end edges from above and below to preferably compress and ensure an effective seal and support connection between the frame and the filtration media.

Abstract: To enlarge an opening area in an element retainer supporting a clean side of an element, to reduce resistance to air passage and thereby to enlarge intake air quantity. The interior of an air cleaner is surrounded by a case and a lid is partitioned by an element into a dirty side and a clean side. An opening portion on the side of the clean side of an element holder supporting the element is covered by an element retainer, and the element retainer is formed in the shape of a louver.

Abstract: A filter device, especially for filtering the intake air of an internal combustion engine, which includes a housing with an unfiltered air inlet and a clean air outlet, and a substantially cylindrical, replaceable filter insert disposed in the housing, which separates an unfiltered air zone within the housing from a clean air zone. An axial seal is provided on at least one end disk of the cylindrical filter insert, which seal interacts with a sealing surface on the housing to seal the unfiltered air zone from the clean air zone. A clamping wedge is also provided, which exerts a force on the filter insert to urge the axial seal reliably against the sealing surface of the filter housing.

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: An air induction system comprises flow body (32) and a filter housing (20). The filter housing (20) has a first housing portion (36) and a second housing portion (40) in communication with the air flow body (32). A filter (44) is disposed in the filter housing (20). A connector comprises a wing (54) mounted to a post (70) extending from the first housing portion (36) and a slot (56) on the second housing portion (40). (FIG. 4). The first housing portion (36) has at least one cutout (60) adjacent post (72). (FIG. 4).

Abstract: An air filter assembly comprises a plastic frame containing an air permeable filter media. The media is corrugated to provide a series of pleats. Some of the pleats can be folded more compactly than others, so that the media can fit in various size frames. This can reduce the inventory of filter manufacturers and dealers. The filter frame can be plastic injection molded with integral living hinges to enable the frame to fold from a relatively flat shape to a more box-like structure. The frame includes one or more flip-up saw tooth racks that help define a main series of chambers plus a storage chamber. The main series of chambers supports a portion of the media that is more loosely folded for filtering air. The storage chamber is adjacent the main air stream and holds the more compactly folded, excess pleats.

Abstract: A blood processing system comprises a processing chamber to process blood and a fluid flow cassette that communicates with the processing chamber. The cassette comprises a body, a pump chamber formed in the body, and a flexible diaphragm on the pump chamber responsive to an applied fluid pressures for flexure toward and away from the pump chamber to pump fluid through the pump chamber. The cassette also includes a flow path formed, at least in part, in the body to couple the pump chamber in fluid flow communication with the processing chamber, to convey fluid pumped by the pump chamber into the processing chamber. The cassette also includes an in line cavity formed in the body and located in the flow path to trap air to prevent entry of air into the processing chamber.

Abstract: An air cleaner, particularly for an engine of a vehicle, includes a case, a cover detachably mounted to the case, a filter element accommodated in the case, the filter element having a cylindrical shape having a central axis therealong, and a pair of support members mounted to the cover so as to be engaged with both end portions of the filter element in an axial direction thereof to hold the filter element between the support members. In such air cleaner, removing the cover from the case removes the filter element from the case together with the cover and disengaging the filter element from the support members removes the filter element from the cover.

Abstract: An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surface of the housing and air expulsion from the side of the housing to utilize a wall surface to disperse the filtered air. An indicator is provided to communicate that a filter should be changed, and a filter orientation system is provided to allow proper orientation of the filter with respect to air flow.

Abstract: A water separator is provided for use in an environmental control system that includes first and second housing portions at least partially defining an interior cavity. A coalescer assembly that may include a mesh material is disposed within the interior cavity for separating water from the air flowing through the interior cavity. First and second interlocking features, which may include a plurality of circumferentially arranged tabs received in the slots of circumferentially arranged flanges, secure the housing portions together. The tabs and flanges interlock with one another in response to moving the first and second housings relative to one another from and open position to a closed position in which the housing portions are secured to another. In this manner, V-band coupling of the prior art may be eliminated and the service time of the water separator may be reduced.

Abstract: An air purifying device is provided for removing airborne particles. The device includes a housing including an air inlet and an air outlet. A fan is positioned within the housing for drawing air into the housing through the air inlet and expelling air through the air outlet. A filter assembly is positioned within the housing between the air inlet and the fan. The filter assembly includes a frame and a filter element mounted to the frame. The device also includes a hanger and an elongate hanger support that removably extends within the hanger. Either the hanger or the elongate hanger support is coupled to the frame while the other is coupled to the housing. The hanger can include a channel or a pair of opposed legs configured to form a gap.

Abstract: Filter arrangements include a barrier media in the form of fluted media treated with a deposit of fine fibers. The media is particularly advantageous in high temperature (greater than 140 to 240° F.) systems. Such systems may include engine systems, gas turbine systems, and fuel cell systems. Filter arrangements may take the form of media packs having a circular cross-section or a racetrack shaped cross-section, or media packs formed in a panel configuration.

Abstract: A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing an end of the media pack central, open volume. The closed end cap includes a projection extending axially outwardly therefrom and positioned at a location intersected by the longitudinal axis. An end cover for an air cleaner includes an inner side including a central projection thereon. Preferably, the central projection comprises a wall that includes an outer perimeter defining a regular polyhedron having at least five sides. An air cleaner comprises a cylindrical filter element having a first open end cap, a second closed end cap, and a cylindrical media pack extending therebetween. The first end cap defines an internal radial seal region. The second, closed end cap has a central region including a circular recessed portion.

Abstract: A separator plate is provided in a dryer housing which is connected to a desiccant can for use in, for example, drying and cleaning the air for pneumatic lines. The separator plate includes a conical or domed section surrounded by a baffle which in combination, define an expansion chamber within the dryer housing. The expansion chamber is lined on its inner surfaces with a coalescing/filtering media which will remove oil aerosols and vapors, and water aerosols and vapors from the air passing through the housing. The separator plate also include a ring of coalescing/filtering media externally of the expansion chamber, but which the air must pass through prior to exiting the separator housing and entering the drying canister.

Abstract: A filtering device for filtering fluids includes a filter housing, a filter element and an attaching device for attaching the filter element to the housing. The filter element is attachable to the filter housing using a bayonet lock.

Abstract: An air filter assembly which filters and purifies air prior to entering an external combustion engine includes a conical radially pleated filter element disposed over a filter carrier. When assembled, the pleats of the filter element are trapped between a plurality of internal teeth on an internal comb section of the filter carrier and a plurality of external teeth on an external comb section of an opening of the air cleaner box. The filter carrier further includes a plurality of struts which further shapes the filter element. A locking mechanism secures the air filter assembly to the air cleaner box.

Abstract: An air filter system for use by airline passengers on commercial airlines and the like. The housing is configured to clamp to the gasper air supply nozzle of the airliner. The housing is configured to direct air from the air supply nozzle through the filter medium. Thus, the present invention provides a filter which may easily be installed by an airline passenger so as to mitigate airborne contaminants from the air supply nozzle of the airliner. The air filter system provides a flow of comparatively clean air to the passenger and the flow of comparatively clean air directs undesirable airborne contaminants found within the passenger cabin of the airliner away from the passenger, thus forming a region of comparatively clean air generally around the passenger.

Abstract: The portable air purifying device (10) is provided for removing airborne particles. The device includes a housing (12) including an exterior surface formed with an air inlet (26) and an air outlet (28). The air outlet is formed as a plurality of openings. A scroll (44) is located within the housing and has walls formed with an intake opening (194) and an exhaust port (186). The exterior surface and the walls define a cavity (76). The cavity has a first portion and a second portion. The first portion is in communication between the exhaust port and the air outlet. A fan (14) is positioned within the intake opening for drawing air in through the air inlet to pass through the scroll and the first portion of the cavity to be expelled through the air outlet while the second portion of the cavity is under a positive pressure. A filter assembly (48) is assembled within the housing between the air inlet and the fan. The device can include a second filter assembly.

Abstract: A filter arrangement includes a media construction including a corrugated sheet secured to a flat sheet rolled into a coiled construction. A frame and a first seal member are provided. The frame secures the first seal member to the coiled construction. The first seal member is preferably oriented to form a radial seal with a housing. A second seal member is secured to the outer annular surface of the coiled construction. The second seal member includes a gasket extension having first and second opposite ends; an attachment portion; and a protrusion extending from the attachment portion. The second seal member is preferably oriented to form an axial seal with a housing. Air cleaners preferably utilizing filter arrangements as described herein operably installed within housings. Methods of installing, filtering, assembling, and servicing preferably include arrangements as described herein.

Abstract: An air cleaner includes at least one more installation hole provided in a resin frame of an adsorbent sheet than there are pins and engaging hooks respectively provided in an upper housing.

Abstract: One or two filters in brackets are integrated with a square or circular fan. Filters and associated brackets are provided both in the front and in the rear of the fan in one embodiment. In another embodiment, a single filter in a bracket is provided at the rear of the fan. The filter(s) can be pre-pleated and pre-activated carbon filter(s). The fan housing can include a pocket for adding an odorizing and/or deodorizing agent. A plurality of stick-on right-angled brackets having the capacity of adjustable clearance to snugly hold the filters is another embodiment.

Abstract: A smoke evacuating system for use during surgical procedures, particularly minimally invasive procedures involving the use of a laser or cautery at a surgical site having an associated higher than ambient pressure, wherein the system includes a filter with a site side and an outlet side and a fluid conduit extending between the surgical site and the filter. The filter includes a filter media and a housing substantially surrounding the filter media with a space between the filter media and the housing to collect condensed vapor. The filter exhibits low resistance or a low pressure drop and resists fluid flow, whereby the higher than ambient pressure is not substantially diminished and generates a fluid flow in the fluid flow path tending to carry smoke to and through the filter.

Abstract: An improved air filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex, and then continues in a convergent second wall section that terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the interior chamber defined by the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical section divergent at a taper angle greater than that of the housing first wall section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter at a fourth taper angle less than that of the housing second wall section and defining the filter device outlet.

Abstract: A filtering apparatus for an air treatment apparatus (5), a superior purity of the filtered air being required. The apparatus has a plurality of filter cartridges (3), provided with filters (2) and inserted into one cassette (4) each. The cassettes are fastened in the air treatment apparatus and the filter cartridges (3) have, on their side, which is turned towards the incoming air stream, a seal (6), which extends in an axial direction and around the periphery and axially abuts a surface, which is oriented radially in relation to the air stream and the apparatus or the like respectively and which surrounds an outlet opening (9), defined by each filter cartridge.

Abstract: A filter including a housing made up of two housing shells in the form of mating cylindrical vessels (12, 12a) in one of which a support tube (17), especially a support tube having a conical shape, is integrated. A conical annular filter cartridge, preferably one having a resilient axial play compensating element (21) at one end, is installed on the support tube (17). The housing shells (12, 12a) are joined by a central screw connection (22), and sealing between the housing shells is effected by a labyrinth seal (14, 15). The filter is able to adapt to tolerance variations in the axial length of the individual components, so that productions costs are kept low. The housing shells (12, 12a) are constructed in such a way that they can be manufactured using simple casting molds with no undercuts.

Abstract: The present invention provides a method and apparatus for replacing a filter. The apparatus includes a receptacle adapted to receive a filter that is capable of filtering a first area. The apparatus further includes at least one supporting member to support at least a portion of the filter and at least a portion of a replacement filter, wherein both the filter and replacement filter are adapted to filter at least a portion of the first area for a selected duration.

Abstract: A micro porous gas breather/filter assembly can be coupled to a housing of an electrical enclosure. The filter assembly has a two portion housing with the filter disposed between them. An adhesive on the filter attaches the filter to one or both portions of the housing. The filter allows gas to pass from the enclosure through the filter and to the atmosphere, but prohibits liquid from passing into the enclosure device. By filtering gases and liquids in this manner, the filter vents explosive and/or flammable gases from an electrical enclosure, while preventing liquid and other contaminants from entering the enclosure and damaging the electrical device or its wiring.

Abstract: A purification assembly (10) includes a block (20) and a purification element (40) disposed in the block (20). The block (20) includes first (50) and second (60) pieces attachable to each other and has first (22) and second (24) flow paths. The block (20) also includes a cavity (30) defined by the first (50) and second (60) pieces and disposed in the first (22) flow path. The purification element (40) is disposed in the cavity (30) and in the first fluid flow path (22), wherein fluid flowing through the first fluid flow path (22) passes through the purification element (40). A method for purifying gas includes directing gas through a purification assembly installed between a fluid device (10) and a manifold (2).

Abstract: A filter including a housing with a bottom shell (11) and a cover (13) for receiving a filter element (10). The filter element has a seal (17) that is made of non-woven material and is also used as a filtering medium. The filter element is clamped in a slot (16) between clamping ribs (20) and clamping grooves (21). Manufacturing tolerances of the housing parts can thus be compensated over a wide range. This leads to improved economic efficiency in the manufacturing process, especially as regards the production of synthetic resin housings. In addition, the assembly and retaining forces acting between the parts of the housing can be reduced, thereby simplifying the assembly process.

Abstract: An apparatus for the transmission of the pressure in the sterile area of a medical appliance, such as a hemodialysis appliance, to a non-sterile pressure gauge having two housing halves and a sterility filter positioned between the two housing halves. The housing half on the sterile side may be made of polycarbonate, and the non-sterile housing half may be made of a polymer, preferably a polyester/polyether copolymer, which provides an easily disconnectable and leak-proof connection with the pressure gauge. The two halves are ultrasonically welded together.

Abstract: An air filter/oil separator assembly comprises a housing having an outer wall and a channel disposed therein between a primary gas inlet and a primary gas outlet. An air filter is joined to the primary gas inlet for filtering air from the immediate environment for introduction into an engine intake system. The housing includes a secondary inlet port through the outer wall, for receiving an air-oil mixture taken from an engine crankcase breather, and a secondary outlet port through the channel wall. A baffle is disposed axially within the housing and extends axially between the outer wall and the channel wall. The baffle, outer wall, and channel wall together define a first and second air flow passageway between the secondary inlet and secondary outlet ports. A removable filter element is disposed within at least one of the first and second passageways to capture air-borne particulate matter and/or aid in the coalescence and separation of oil within the air-oil mixture.

Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing for a tubular elements arranged for the gas stream to flow through its wall, the housing having inlet and outlet ports for the gas that is to be filtered. The assembly includes a flow conduit which has a first conduit opening for communication with one of the ports for the gas that is to be filtered and a second conduit opening for communication with the filter element. The housing and the flow conduit are arranged so that the formation of a seal between the first conduit opening and the said port involves sliding the flow conduit generally transversely relative to the direction of flow of fluid through the port.

Abstract: An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surface of the housing and air expulsion from the side of the housing to utilize a wall surface to disperse the filtered air. An indicator is provided to communicate that a filter should be changed, and a filter orientation system is provided to allow proper orientation of the filter with respect to air flow.

Abstract: An air filter housing (12) includes twist and lock structure (46) having a first position (FIGS. 5, 6) permitting axial movement (120) of a cover (44) and base (38) relative to each other, and being rotatable in a first direction (48) from the first position (FIG. 6) to the second position (FIG. 7), and in the second position (FIG. 7) preventing axial movement of the base (38) and cover (44) relative to each other, and being rotatable in a second opposite direction (78) from the second position (FIG. 7) to the first position (FIG. 6). Anti-rotation lock structure (80) provides a rotational retention force holding the twist and lock structure (46) in the second position (FIG. 7).

Abstract: A dirt cup assembly for a vacuum cleaner includes a dirt cup having a dust collection chamber, a first inlet duct, and a second inlet duct spaced from the first inlet duct. A dirt cup lid can be removably secured to the dirt cup, or can be associated with the vacuum cleaner upper assembly. The dirt cup lid includes a center portion extending over the dust collection chamber, a first wall portion extending over the first inlet duct, and a second wall portion extending over the second inlet duct. A filter assembly is removably positioned within the dust collection chamber.

Abstract: An air cleaner assembly is provided. The air cleaner assembly includes preferred one-piece cover/filter element construction. A method for manufacturing a preferred cover assembly with a filter element construction nondetachably secured thereto, is provided.

Abstract: A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing an end of the media pack central, open volume. The closed end cap includes a projection extending axially outwardly therefrom and positioned at a location intersected by the longitudinal axis. An end cover for an air cleaner includes an inner side including a central projection thereon. Preferably, the central projection comprises a wall that includes an outer perimeter defining a regular polyhedron having at least five sides. An air cleaner comprises a cylindrical filter element having a first open end cap, a second closed end cap, and a cylindrical media pack extending therebetween. The first end cap defines an internal radial seal region. The second, closed end cap has a central region including a circular recessed portion.

Abstract: An air induction system comprises flow body (32) and a filter housing (20). The filter housing (20) has a first housing portion (36) and a second housing portion (40) in communication with the air flow body (32). A filter (44) is disposed in the filter housing (20). A connector comprises a wing (54) mounted to a post (70) extending from the first housing portion (36) and a slot (56) on the second housing portion (40). (FIG. 4). The first housing portion (36) has at least one cutout (60) adjacent post (72). (FIG. 4).

Abstract: An air filter housing (12) includes twist and lock structure (42) having a first position (FIGS. 5, 7, 10) permitting axial movement (66) of a cover (34) and base (36) relative to each other, and being rotatable in a first rotational direction (44) from the first position to a second position (FIGS. 4, 6, 9, 12), and in the second position preventing axial movement of the base and cover relative to each other, and being rotatable in a second opposite rotational direction (64) from the second position to the first position. Anti-rotation lock structure (70, 110, 140) provides a rotational retention force holding the twist and lock structure in the second position. The anti-rotation lock structure includes an arm (74, 112, 142) flexibly bendable about a bend line extending parallel to the axis (14) of the housing.

Abstract: A ceiling fan having a rotatable plate. A filtering media is disposed proximate the peripheral edge of plate and rotatable therewith. A number of curved fan blades are coupled with and extend from the plate, and are disposed annularly to define a central opening so that air is pulled toward the blades and through the filtering media. In another embodiment, a ceiling fan has a circular plate with a number of fan blades attached to the plate and arranged in a ring shape. The circular plate has a number of spacers that are coupled with a lower ring. At least one section of filter media is located between the plate and the ring. Also, at least one door is coupled with the plate and is located at the peripheral edges of the plate and ring to cover at least a section of the filter media.

Abstract: A filter including a housing made up of two housing shells in the form of mating cylindrical vessels (12, 12a) in one of which a support tube (17), especially a support tube having a conical shape, is integrated. A conical annular filter cartridge, preferably one having a resilient axial play compensating element (21) at one end, is installed on the support tube (17). The housing shells (12, 12a) are joined by a central screw connection (22), and sealing between the housing shells is effected by a labyrinth seal (14, 15). The filter is able to adapt to tolerance variations in the axial length of the individual components, so that productions costs are kept low. The housing shells (12, 12a) are constructed in such a way that they can be manufactured using simple casting molds with no undercuts.

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