Multiple Of One Type In Series Of Parallel In Flow Path Patents (Class 55/321)
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Patent number: 11998869Abstract: 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.Type: GrantFiled: April 21, 2020Date of Patent: June 4, 2024Assignee: Sprintus GmbHInventor: Holger Lepold
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Patent number: 11369905Abstract: The present disclosure generally relates to separating solid particles from an airflow in a gas turbine engine. A system for separating debris includes a first separation device in fluid communication with an inlet flow path of a compressor and a second separation device in fluid communication with an outlet flow path of the compressor and an inlet flow path of a combustor. The first separation device is adapted to remove coarse particles from the airflow. The second separation device is adapted to remove fine particles from the airflow. The course particles have a larger mean particle diameter than the fine particles.Type: GrantFiled: May 29, 2020Date of Patent: June 28, 2022Assignee: General Electric CompanyInventors: Joshua Tyler Mook, John Alan Manteiga, Gregg Hunt Wilson, Stephen Joseph Waymeyer, Christopher Robert Williams
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Patent number: 10710013Abstract: Systems are disclosed for separating and collecting liquid and particulate from a flowing gas stream. The systems may include a plurality of horizontally oriented helical separators positioned in a vessel between a gas stream inlet and a gas stream outlet. The helical separators form helical channels for the gas stream and may include an upstream conical portion. The vessel includes a first space upstream from the helical separators wherein the gas stream changes direction before entering the helical separators, such that the change in direction causes mechanical separation of liquids or solids from the gas stream. The vessel may also form a second space downstream from the helical separators for collecting liquid and particulate separated from the gas stream. The first and second spaces in the vessel may each include a drain which empties into a common sump, such that the first and second spaces are in fluid communication.Type: GrantFiled: March 13, 2018Date of Patent: July 14, 2020Assignee: MUELLER ENVIRONMENTAL DESIGNS, INC.Inventor: Fred J. Mueller
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Patent number: 9918602Abstract: A cyclonic separator comprising a cyclone chamber defined between an outer wall and a shroud. The shroud comprises an inlet opening through which fluid enters the cyclone chamber, and a plurality of perforations through which fluid exits the cyclone chamber. Fluid within the cyclone chamber is then free to spiral about the shroud and over the inlet opening.Type: GrantFiled: April 16, 2012Date of Patent: March 20, 2018Assignee: Dyson Technology LimitedInventors: James Dyson, Jeremy William Crouch, James Stuart Robertson, Peter David Gammack, Simon Edward Ireland
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Patent number: 9909333Abstract: Exemplary embodiments are directed to pool cleaners, generally including a canister body, a filtering medium assembly and a cyclone block. The canister body includes an inner chamber within inner walls of the canister body. The filtering medium assembly can be disposed within the inner chamber of the canister body. The cyclone block can be disposed within the inner chamber of the canister body and can be at least partially surrounded by the filtering medium assembly. The cyclone block includes a plurality of individual cyclone containers. A first cyclonic flow can be generated between the inner walls of the canister body and the filtering medium assembly. A second cyclonic flow can be generated within each of the plurality of cyclone containers.Type: GrantFiled: January 26, 2016Date of Patent: March 6, 2018Assignee: Hayward Industries, Inc.Inventors: Graham M. Hayes, Scott Teuscher, Edward Lawrence Marciano
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Patent number: 9005340Abstract: A fiber bed assembly used to remove aerosols and/or wetted soluble solids from a moving gas stream includes a fiber bed support and a fiber bed supported by the fiber bed support so that the gas stream passes through the fiber bed moving from an upstream space to a downstream space with respect to the fiber bed. A re-entrainment control device is located within a downstream space defined by the fiber bed so that at least a portion of the gas stream passes through the re-entrainment control device. The re-entrainment control device is shaped to change the direction of the average flow path of the gas stream as the gas stream passes through the re-entrainment control device so as to cause aerosols and/or wettable solids contained therein to be separated from the gas stream by inertial force. A re-entrainment control device and method of use are also disclosed.Type: GrantFiled: October 4, 2012Date of Patent: April 14, 2015Assignee: MECS, Inc.Inventors: Douglas E. Azwell, Frederick L. Mueller, Steven A. Ziebold, Julie Marie Wagner
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Patent number: 8979960Abstract: A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan. The cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port; and a cooling air flow path. The motor comprises a permanent magnet brushless motor, a switched reluctance motor or a flux switching motor. The fan has an outer diameter the same or less than the diameter of the motor. The plurality of cyclones, the motor and the fan are arranged in a circular array about a central axis of the cyclonic separation apparatus. The arrangement comprises a baffle for directing air flow from the fan out of the circular array. The motor is located in the cooling air flow path.Type: GrantFiled: October 10, 2012Date of Patent: March 17, 2015Assignee: Black & Decker Inc.Inventor: Kevin Smith
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Patent number: 8951337Abstract: An inertial separation air precleaner system includes a replaceable insert removably mounted to the precleaner and altering air flow velocity through the precleaner by changing flow area of the flowpath through the precleaner housing. The replaceable insert is replaceable with a different insert for the same precleaner housing, which different insert provides a different flow area through the precleaner housing, enabling a selectable precleaner efficiency vs. restriction trade-off as chosen by a user for a particular application, enabling tuning of precleaner performance by the user.Type: GrantFiled: October 21, 2011Date of Patent: February 10, 2015Assignee: Cummins Filtration IP Inc.Inventors: Kenneth M. Tofsland, Stephen L. Fallon
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Patent number: 8945258Abstract: A vacuum cleaner comprising: a motor coupled to a fan for generating air flow; an elongate body with a handle at longitudinal end and a cleaner head arranged at an opposite longitudinal end; a dirt separation means located in a path of the air flow generated by the fan; and at least one support wheel for supporting the vacuum cleaner upon a floor, wherein the dirt separation means comprises: a hollow substantially cylindrical dirt container with a longitudinal central axis arranged transverse to the elongate body; and an air inlet port to the dirt container, wherein the air inlet port is in communication with the cleaner head located in the path of the air flow upstream of the dirt separation means and wherein the at least one support wheel rotates about the dirt container.Type: GrantFiled: October 11, 2012Date of Patent: February 3, 2015Assignee: Black & Decker Inc.Inventor: Kevin Smith
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Patent number: 8914941Abstract: A cyclone dust collecting apparatus for a vacuum cleaner includes a first chamber; an entering passage disposed above the first chamber, the entering passage guiding outer air to form a downwardly whirling air current in the first chamber; a second chamber formed at a position higher than that of an outlet of the entering passage above the first chamber, the second chamber in which the outer air entering from the first chamber whirls; a contaminants-blocking member disposed to be spaced apart from a bottom surface of the first chamber at a center of the first chamber, the contaminants-blocking member preventing contaminants and water separated in the first chamber from moving into the second chamber; and a grill disposed inside the second chamber to be in fluid communication with an air discharging port through which clean air is discharged.Type: GrantFiled: May 31, 2011Date of Patent: December 23, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Min-ha Kim, Joung-soo Park, Sung-tae Joo, Hyun-ju Lee, Dong-houn Yang
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Patent number: 8784522Abstract: An air filter system (30) includes a filter housing (10) with a filter element (1) received within the housing. A secondary housing is secured to and closing the filter housing. The secondary housing includes a locking element operable to engage the filter housing and the filter element. The filter element (1) includes at least one fastening element (7) wherein the locking element (22) of the secondary housing (20) engages the at least one fastening element (7) in such a way, when the filter element (1) is accommodated in the filter housing (10) and is disposed between the filter housing (10) and the secondary housing (20), that the secondary housing (20) is detachably clamped to the filter housing (10).Type: GrantFiled: August 19, 2013Date of Patent: July 22, 2014Assignee: Mann+Hummel GmbHInventors: Joerg Menssen, Stefan Becker, Kai Hilarius, Klaus-Dieter Ruhland, Steffan Ackermann
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Patent number: 8486170Abstract: A filter apparatus comprises first and second filters, each having an upstream surface and a downstream surface. At least one bypass channel extends from a position upstream of the upstream surface of the first filter to a position upstream of the upstream surface of the second filter.Type: GrantFiled: March 10, 2010Date of Patent: July 16, 2013Assignee: G.B.D. Corp.Inventors: Wayne Ernest Conrad, Dave Petersen
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Patent number: 8460416Abstract: An oil separating device is provided with a first and a second separator element that are arranged parallel to one another and are positioned in a separate first and a second flow path, respectively. The oil/air stream to be cleaned is alternatingly introduced into the first flow path with the first separator element or into the second flow path provided with the second separator element.Type: GrantFiled: August 25, 2008Date of Patent: June 11, 2013Assignee: Mann + Hummel GmbHInventor: Jörg Hammerschick
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Publication number: 20130091810Abstract: A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor coupled to a fan for generating air flow; a cyclonic separation apparatus located in a path of the air flow generated by the fan; and a pre-fan filter located in the path of the air flow downstream of the cyclonic separation apparatus and upstream of the fan, wherein the cyclonic separation apparatus comprises at least one cyclone comprising: a cyclone body with a longitudinal axis; an air inlet port arranged tangentially through a side of the cyclone body; and an air outlet port through a longitudinal end of the cyclone body, wherein the pre-fan filter is arranged upon the air outlet port of the or each cyclone.Type: ApplicationFiled: October 10, 2012Publication date: April 18, 2013Applicant: BLACK & DECKER INC.Inventor: BLACK & DECKER INC.
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Patent number: 8303688Abstract: Disclosed herein is a filter apparatus comprising a fluid inlet for a fluid to be filtered in the apparatus; a first fluid outlet for fluid that has been filtered; and one or more barrier filters arranged between the fluid inlet and the first fluid outlet for filtering material from the fluid. In use, the fluid to be filtered is directed from the fluid inlet so as to promote a continuous erosion of material built up on the barrier filter(s). Also disclosed is a method of filtering particles from a particle laden fluid.Type: GrantFiled: March 7, 2008Date of Patent: November 6, 2012Assignee: Commonwealth Scientific and Industrial Research OrganizationInventor: Sunil Dutt Sharma
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Publication number: 20120132075Abstract: A mist eliminator including a substrate and a plurality of frusto-conical shaped protrusions disposed on the substrate is provided. The plurality of frusto-conical shaped protrusions have a geometry and are positioned at intervals that provide coalescence and retention of water particles from moisture containing air contacting the substrate and frusto-conical shaped protrusions. A moisture removal system and a method for removing water particles from inlet air with the mist eliminator are also disclosed.Type: ApplicationFiled: November 29, 2010Publication date: May 31, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Etienne Rene JARRIER, John DAVIES, Paul BRYANT
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Publication number: 20120124947Abstract: A filter cartridge includes a media pack having first and second opposite flow faces; the media pack comprising flutes extending in a direction between the inlet flow face and the outlet flow face; a frame mounted on the second flow face of the media pack; a seal support section extending from the base member; and first and second opposite and spaced blades extending from the base member and in a different direction from the base member as the seal support section. The first and second blades are embedded within the media pack through the second flow face. A seal member is oriented against the seal support section. The filter cartridge can be removably oriented in a cassette. The cassette and filter cartridge are removably oriented in an air cleaner housing. The cassette may include lugs to help position the cartridge in sealing engagement with the air cleaner housing. In another embodiment, the filter cartridge is cassette-free and includes a cartridge-handle projecting therefrom.Type: ApplicationFiled: March 31, 2010Publication date: May 24, 2012Applicant: Donaldson Company, Inc.Inventors: Johan G. Dewit, Johnny Craessaerts, Andreas Honiges, Bernd Helferich
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Publication number: 20120117753Abstract: A cyclone dust collecting apparatus for a vacuum cleaner includes a first chamber; an entering passage disposed above the first chamber, the entering passage guiding outer air to form a downwardly whirling air current in the first chamber; a second chamber formed at a position higher than that of an outlet of the entering passage above the first chamber, the second chamber in which the outer air entering from the first chamber whirls; a contaminants-blocking member disposed to be spaced apart from a bottom surface of the first chamber at a center of the first chamber, the contaminants-blocking member preventing contaminants and water separated in the first chamber from moving into the second chamber; and a grill disposed inside the second chamber to be in fluid communication with an air discharging port through which clean air is discharged.Type: ApplicationFiled: May 31, 2011Publication date: May 17, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Min-ha Kim, Joung-soo Park, Sung-tae Joo, Hyun-ju Lee, Dong-houn Yang
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Patent number: 8152887Abstract: An improved air/oil separator assembly for removal of oil from a gaseous stream is disclosed. The air/oil separator includes a head flange and an end plate positioned in a spaced-parallel relationship. A first and a second elongated support member and an outer jacket are concentrically arranged and secured along opposing ends to the head flange and end plate. A first separator element is secured in a position proximate to and outboard of the first support member and a second separator element is secured in a position proximate to and outboard of the second support member. A pre-separator element is secured in a position proximate to and outboard of the second separator element but inboard of the outer jacket. The pre-separator and separator elements are operative to remove oil from the gaseous stream. The pre-separator improves oil removal performance by removing a significant amount of oil before it reaches the separator elements.Type: GrantFiled: December 15, 2008Date of Patent: April 10, 2012Assignee: Mann + Hummel GmbHInventor: Ankur Patel
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Patent number: 8066787Abstract: A bypass flow filter includes a plurality of channels which are formed of at least one structured wall layer and a filter layer. Projecting guide vanes and passages, which are formed by the wall layer and lead to a different channel, are provided in at least a majority of the channels. The passages have a narrowing cross section and a narrowing part of the cross section is directed towards an adjacent guide vane. An exhaust system and a vehicle having a bypass flow filter, are also provided.Type: GrantFiled: December 2, 2008Date of Patent: November 29, 2011Assignees: EMITEC Gesellschaft fuer Emissionstechnologies mbH, Toyota Motor CorporationInventor: Kait Althöfer
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Publication number: 20110061350Abstract: A dust collection unit for a vacuum cleaner includes a first dust collection part for filtering foreign objects in air, a second dust collection part for filtering foreign objects in the air that has passed through the first dust collection part, and a dust collection container having first and second dust collection chambers that correspond to the first and second dust collection parts, respectively. The first and second dust collection chambers store the foreign objects filtered by the respectively first and second dust collection parts in a state where parts of the respective first and second dust collection parts are received in the respective first and second dust collection chambers and the first and second dust collection chambers are provided in a line.Type: ApplicationFiled: November 18, 2010Publication date: March 17, 2011Inventors: Tae Jin Park, Seong Yong Kim
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Patent number: 7896264Abstract: A microstructured nozzle consists of a number of channels produced by microstructuring a plate-shaped member. In the nozzle the channels are located between projections which are arranged side by side in rows and project from a base plate. This microstructured base plate is covered with a cover plate. The channels are narrowly defined in terms of shape, cross sectional area and length. The nozzle contains a filter as the primary structure and a secondary structure downstream of the filter. The nozzle is used, for example, with an atomiser which produces an aerosol from a fluid containing a medicament.Type: GrantFiled: June 25, 2004Date of Patent: March 1, 2011Assignee: Boehringer Ingelheim International GmbHInventors: Joachim Eicher, Johannes Geser, Matthias Hausmann, Holger Reinecke
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Publication number: 20110030558Abstract: A dust collector includes a collector housing and a filter arrangement. The collector housing includes a hopper and has walls defining an unfiltered air plenum, a filter region, a filtered air plenum, an air inlet, and an air outlet. The air inlet has a first dimension across a widest portion of the air inlet. A filter arrangement is operably positioned in the filter region of the collector housing. Unfiltered air flows through the air inlet, into the unfiltered air plenum, through the filter arrangement, into the filtered air plenum and out through the air outlet. The hopper is located under the filter region in a position to catch particulate matter that falls by gravity from the filter arrangement and the unfiltered air plenum. The unfiltered air plenum includes a pre-separation region that is spaced both laterally and axially relative to the filter region. The pre-separation region is spaced laterally relative to the filter region at least 0.5 times the first dimension of the air inlet.Type: ApplicationFiled: February 4, 2009Publication date: February 10, 2011Inventor: Thomas D. Raether
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Patent number: 7857879Abstract: The droplet separator includes a vortex generating apparatus in a flow passage for directing a droplet-carrying gas in the direction of at least one separator element arranged concentrically about the flow passage. The separator element includes multiple grid-like structures for separating the droplets from the gas flow.Type: GrantFiled: November 6, 2007Date of Patent: December 28, 2010Assignee: Sulzer Chemtech AGInventor: Daniel Egger
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Patent number: 7837752Abstract: A rigid or semi-rigid demister pad is positioned between an air turbine and an inertial water removal device such as extractor in an air conditioning system for an aircraft. The demister pad comprises packed fibers or strands whose diameter typically ranges from approximately 10 or fewer microns to approximately 280 microns. The demister is capable of catching very small droplets discharged from the air turbine that coalesce into larger droplets that exit the demister pad and enter an adjacent water removal device downstream from the pad to separate the larger water droplets from the stream of air. This avoids using a water separator containing a coalescer bag that requires frequent maintenance and is sensitive to dirt and freezing. The demister can operate at freezing temperature, is not dirt-sensitive and requires no maintenance.Type: GrantFiled: December 3, 2007Date of Patent: November 23, 2010Assignee: Honeywell International Inc.Inventors: Ranjit R. Darke, Michael B. Faust, Allen K. MacKnight, Russell Johnson, Alexander M. Bershitsky
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Publication number: 20100186353Abstract: The invention relates to a filter device (10), in particular for filtering intake air of an internal combustion engine. The filter device (10) comprises a separator that is embodied in particular as a cyclone preseparator (26), moreover a main filter element (36) exchangeably arranged in a housing compartment (68) of the filter housing (12), as well as a secondary filter element (38) that in the flow direction of the fluid to be cleaned is arranged downstream. The housing compartment (68), for facilitating premounting of the main filter element (36) therein, comprises insertion stays (64). The main filter element (36) is embodied in particular as a double bellows filter, comprising a first radially inwardly positioned filter bellows (40) and a second radially outwardly positioned filter bellows (42) surrounding it.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Applicant: MANN+HUMMEL GMBHInventors: Steffen ACKERMANN, Ralf BAUDER, Duc Cuong NGUYEN
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Publication number: 20100107577Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: January 11, 2010Publication date: May 6, 2010Applicant: Donaldson Company, Inc.Inventors: William Joseph Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Publication number: 20100064643Abstract: A filter for filtering a fluid has a filter housing and a filter element arranged in the filter housing. A cyclone preseparator is arranged upstream of the filter element, wherein a fluid to be cleaned is guided through the preseparator to the filter element. The cyclone preseparator has at least two cyclone cells that have a different diameter, respectively.Type: ApplicationFiled: September 17, 2009Publication date: March 18, 2010Applicant: MANN+HUMMEL GMBHInventor: Volker Greif
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Patent number: 7637972Abstract: A low resistance air filter device comprises a tubular case (2) for containing a filtering element (3) fixed to a lower opening (9) of the case (2). The tubular case has an upper opening (10), with outlet means (8) provided with an air outflow opening (7). The outlet means (8), at the outflow opening (7), are provided with a tubular body protruding toward an inside tubular case (2) and connect in flow communication the inside volume of the tubular case with the outflow opening (7).Type: GrantFiled: February 9, 2005Date of Patent: December 29, 2009Assignee: BMC S.r.l.Inventor: Gaetano Bergami
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Patent number: 7594942Abstract: A gas/liquid separator comprising a vertical vessel having an inlet for a gas/liquid mixture; a gas/liquid separation device arranged within the vessel, which separation device has an inlet in fluid communication with the inlet of the vessel, and an outlet means for at least partially separated gas and liquid; an outlet for gas from the vessel, above and in fluid communication with the outlet means of the separation device; a liquid collection space in the vessel, below and in fluid communication with the outlet means of the separation device; and an outlet for liquid from the vessel, having a receiving end in the liquid collection space, wherein the gas/liquid separation device is a vane inlet device and wherein between the separation device and the liquid collection space a liquid collection promoter tray is arranged, forming a receiving area for liquid impinging on the tray from above and having a passage for liquid received on the receiving area to flow to the liquid collection space; and the use of suchType: GrantFiled: September 8, 2004Date of Patent: September 29, 2009Assignee: Shell Oil CompanyInventor: Hugo Gerardus Polderman
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Publication number: 20090145093Abstract: A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.Type: ApplicationFiled: February 13, 2009Publication date: June 11, 2009Applicant: Donaldson Company, Inc.Inventors: William Joseph Krisko, Wayne R.W. Bishop, Steven Scott Gieseke, Carolyn J. Finnerty, David W. Nelson
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Patent number: 7438735Abstract: A filter apparatus includes a gas-impermeable outer conduit having an open end and a closed end. The interior of the outer conduit is axially divided into first and second sides. A first clean and first dirty flow path are defined within the first side. A first gas-permeable liner separates the first clean flow path from the first dirty flow path and from the open end. A second clean and second dirty flow path, are defined within the second side. A second gas-permeable liner separates the second clean flow path from the second dirty flow paths and from the open end. A control valve connects one of the first clean and second clean flow paths to an exhaust conduit, and connects the other clean flow path to a selectively pulsed supply of cleaning gas.Type: GrantFiled: January 19, 2005Date of Patent: October 21, 2008Assignee: Eastman Kodak CompanyInventor: Jeffery P. Kelsey
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Patent number: 7404834Abstract: In an ethylene oxide process, the stripping and reabsorption operations, normally carried out in separate vessels, are carried out in a single vessel which is divided by a baffle into separate sections where reabsorption and stripping are carried out.Type: GrantFiled: February 11, 2005Date of Patent: July 29, 2008Assignee: SD Lizenzverwertungsgesellschaft mbH & Co. KG Lenbachplatz 6Inventors: Barry Billig, James Mann
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Publication number: 20080172992Abstract: A surface cleaning apparatus comprises two or more side-by-side housings, which contain operating components of the surface cleaning apparatus, such as fluid cleaning members or one or more fluid cleaning members and the suction motor of the cleaning apparatus, to provide a cleaning apparatus having a reduced height.Type: ApplicationFiled: December 10, 2007Publication date: July 24, 2008Applicant: G.B.D. CORP.Inventor: Wayne Ernest Conrad
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Patent number: 7332009Abstract: A serviceable gas/liquid separator is provided. The gas/liquid separator has a cross-section with one long axis and one short axis, with an aspect ratio of at least 1.3. A preferred cross-section, is an elliptical cross-section. Assemblies in which the separator unit can be used, are provided. In addition methods of use and construction are provided.Type: GrantFiled: November 16, 2004Date of Patent: February 19, 2008Assignee: Donaldson Company, Inc.Inventors: Michael James Casey, Brian Read
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Patent number: 7309367Abstract: An oil separator for separating entrained oil from a gas stream, the separator being arranged on a housing wall which divides a housing interior from a housing exterior. A support tube, which is arranged inside an outer casing and carries a filter element on its outer circumference through which gas can flow radially. The support tube is closed at its upper axial end face and communicates at its lower axial end face with the housing interior. An impingement separator is arranged in the vicinity of the lower axial end face of the support tube. The outer casing is closed at its bottom relative to the housing in a sealed manner.Type: GrantFiled: October 13, 2006Date of Patent: December 18, 2007Assignee: Mann & Hummel GmbHInventors: Wolfgang Heikamp, Markus Zuerker, Manfred Kuehlborn
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Patent number: 7270690Abstract: The separator has a vane assembly made up of a number of corrugated vanes that provide serpentine paths for the gas stream therethrough. As the gas stream flows through the serpentine paths, it changes direction and liquid in the gas stream impacts the surfaces of the vanes. The upstream section of the vane assembly has roughened surfaces to decrease the surface tension of the liquid, thereby causing the liquid to coalesce. The downstream section of the vane assembly has smooth surfaces so as to increase the surface tension of the liquid. The vane assembly is followed by filters, which capture the liquid that passes through the vane assembly. The vane assembly coalesces the liquid to enable the filters to operate more effectively.Type: GrantFiled: July 14, 2004Date of Patent: September 18, 2007Assignee: Harbison-Fischer, Inc.Inventor: Allen W. Sindel
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Patent number: 7211123Abstract: Device for the ventilation of a transmission case (11) that is normally intended to hold liquid lubricant for transmission components and includes a residual internal volume of air inside the transmission case that is connected to the atmospheric pressure by way of a passage. With the aim of reducing the quantity of dirt particles than can get into the transmission case by way of the said passage, the passage includes a first section (27) with a certain flow area and a second section (26) with, by comparison, an at least approximately 50% larger flow area. The first section (27) is situated between the atmosphere and the second section (26). A compressed air source (18) is connected to the passage between the internal volume of the transmission case (11) and the first section (27).Type: GrantFiled: November 21, 2002Date of Patent: May 1, 2007Assignee: Volvo Lastvagnar ABInventor: Sitg-Erik Johannesson
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Patent number: 7179314Abstract: A method for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream comprises subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.Type: GrantFiled: April 15, 2004Date of Patent: February 20, 2007Assignee: Polar Light LimitedInventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Patent number: 7115156Abstract: A filter system for filtering intake air for a combustion engine, in particular an air filter for a commercial vehicle, having a tubular housing, an inlet situated in the housing through which unfiltered air to be cleaned can be supplied, an outlet situated in the housing through which cleaned air can be discharged, an arrangement of filters situated in the housing between the inlet and outlet which form a seal such that air from the inlet must flow through the filter arrangement to reach the outlet, the housing having an opening for replacement of the filter which can be closed and sealed by a housing cover, and in which at least one prefilter, one main filter and one secondary filter are situated in the housing in axial succession one after the other in the direction of air flow through the filter system.Type: GrantFiled: March 15, 2004Date of Patent: October 3, 2006Assignee: Mann & Hummel GmbHInventors: Jukka Schaerlund, Reinhard Oelpke
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Patent number: 7041159Abstract: A separation cartridge is disclosed which comprises a first separation medium, a second separation medium, and a frame. The second separation medium is positioned adjacent to the first separation medium. The frame is configured to hold the first and second separation mediums. The separation cartridge is configured to separate one or more entrained substances from a gas stream in a hood system.Type: GrantFiled: August 4, 2003Date of Patent: May 9, 2006Assignee: Phillips Plastics CorporationInventors: Majid Entezarian, Thomas Fitch, Richard Smasal
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Patent number: 6991664Abstract: An intake system for the combustion air of a motor of a hand held implement is provided. The system includes an air filter and a centrifugal separator. The air filter has a dirt chamber and a clean chamber that is separated therefrom by a filter medium. The clean chamber is fluidically connected with a carburetor of the motor to convey combustion air to the motor. The centrifugal separator splits the air stream into a core flow having low particle density and a peripheral flow having high particle density. The centrifugal separator includes at least two cyclones, wherein the discharged flows from the cyclones are respectively combined in pairs and open out into a common suction tube.Type: GrantFiled: August 1, 2003Date of Patent: January 31, 2006Assignee: Andreas Stihl AG & Co. KGInventors: Jens Riehmann, Martin Rieber, Heinz Hettmann, Heiko Rosskamp
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Patent number: 6936084Abstract: A filter for separating contaminants from a gas stream, including (a) a housing having a housing body and a housing head, the housing head having an inlet for the gas stream to be purified, an outlet and a first sealing surface, and (b) a filter element accommodated in the housing, having an element head and an element body having a central element axis and an element interior. The element head has a second sealing surface which cooperates with the first sealing surface. A curved inlet manifold is formed between the inlet and the element interior. The inlet manifold is embodied partly in the housing head and partly in the element head such that the first and second sealing surfaces contact in a sealing plane at a 90° to 60° angle to the element axis. A radially arranged seal is provided on the sealing plane, forming one of the sealing surfaces.Type: GrantFiled: June 11, 2001Date of Patent: August 30, 2005Assignee: Beko Technologies GmbHInventors: Herbert Schlensker, Johannes Sinstedten
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Patent number: 6929670Abstract: An apparatus for the separation of sand from an air stream in a thermal sand removal oven is disclosed. The preferred embodiment of the apparatus comprises a plurality of members comprising two planar members joined to form “V” shaped members. The vertex of the “V” shape points generally in the direction of the air current. The apparatus is installed in the recirculated air stream of a thermal sand removal oven, in a location between the sand molds and the air circulation means. The present invention is also installed in ovens containing metal castings containing sand cores, and ovens containing metal castings both encased in a sand mold and containing a sand core.Type: GrantFiled: January 25, 2002Date of Patent: August 16, 2005Assignee: Can-Eng Furnaces Ltd.Inventors: Mohamed S. Hamed, Alan Van Geyn
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Patent number: 6910245Abstract: An upright vacuum cleaner with a cyclonic airflow path includes a floor-engaging base unit, a body unit pivotally mounted to the base unit and a motor/fan assembly mounted on one of the base unit or body units. A dirt collecting enclosure is also mounted on the body unit and includes a first large chamber and a second smaller chamber. A filter unit is disposed in the first large chamber. Dirt laden air is introduced into the first large chamber in a tangential manner so as to impart a cyclonic action to the airflow. The filter in the first large chamber is effective for removing larger particles of debris from the airflow. The remaining airflow is communicated to the second chamber where smaller particles of debris are removed. Airflow from the second smaller chamber is then communicated through a cyclonic chamber disposed above and transverse to the dirt collecting enclosure, to a third chamber where a second filter is disposed.Type: GrantFiled: January 12, 2001Date of Patent: June 28, 2005Assignee: White Consolidated Industries, Inc.Inventors: Thomas Hawkins, Rich Eisenmenger, Len Hampton, Christer Kontio
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Patent number: 6858051Abstract: With known devices for separating oil in the crank housing ventilator, oil is collected on a refined gas side of a filter, which in operation of an internal combustion engine, often cannot drain off. In this manner, the liquid level increases, so that the filter is increasingly clogged by the oil. Finally, the oil is carried away from a gas stream. In this manner, the oil use of the internal combustion engine greatly increases. With the device of the present invention, the oil collected on the refined gas side is collected in a liquid storage unit (10), whereby the liquid storage unit (10) is protected from the stream, so that the gas stream can not carry away oil any longer. The device includes a support body (9), which is impermeable to the stream by means of a cut-off wall (23), in order to prevent a carrying-off of the oil.Type: GrantFiled: May 7, 2003Date of Patent: February 22, 2005Assignee: Robert Bosch GmbHInventor: Dietmar Uhlenbrock
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Publication number: 20040149130Abstract: A new system for holding HEPA filters in an air duct. In the present invention, the filters are mounted parallel to the direction of air flow. This allows a filter assembly with essentially unlimited surface area to be installed without increasing the outside dimensions of the duct. This system also allow for easy and convenient replacement of filters.Type: ApplicationFiled: January 31, 2003Publication date: August 5, 2004Inventor: Dimiter Gorchev
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Patent number: 6740144Abstract: A device for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream includes subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.Type: GrantFiled: January 14, 2002Date of Patent: May 25, 2004Assignee: Fantom Technologies Inc.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Publication number: 20040094114Abstract: An intake system for the combustion air of a motor of a hand held implement is provided. The system includes an air filter and a centrifugal separator. The air filter has a dirt chamber and a clean chamber that is separated therefrom by a filter medium. The clean chamber is fluidically connected with a carburetor of the motor to convey combustion air to the motor. The centrifugal separator splits the air stream into a core flow having low particle density and a peripheral flow having high particle density. The centrifugal separator includes at least two cyclones, wherein the discharged flows from the cyclones are respectively combined in pairs and open out into a common suction tube.Type: ApplicationFiled: August 1, 2003Publication date: May 20, 2004Applicant: Andreas Stihl AG & Co. KGInventors: Jens Riehmann, Martin Rieber, Heinz Hettmann, Heiko Rosskamp
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Patent number: 6723149Abstract: A separator for liquid, in particular for removing oil from crankcase gases, having a cover (11) into which a mount (13) for a cylindrical separating cartridge (14) is incorporated. The separating cartridge is composed, for example, of a non-woven separating material (20) wound around a support body (22) having end plates (33) on the end faces (32) of the support body. The end plates (33) may be composed, for example, of a two-component synthetic resin material. This results in a stable component which can be sealed utilizing the elasticity of the end plate (33) when pushed into the mount (13). This results in a cost effective exchangeable part in which several seals are saved in the complete structural component and yields a structural unit having increased economic effectiveness.Type: GrantFiled: November 20, 2001Date of Patent: April 20, 2004Assignee: Filterwerk Mann & Hummel GmbHInventors: Volker Ernst, Heinz Jawurek, Herbert Jainek