One Adjacent Inlet Or Outlet Conduit Patents (Class 210/316)
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Patent number: 6932900Abstract: A filter device includes a filter housing (10) in which at least two filter elements (12, 14) with differing filter grades of filter material (16) are arranged. The filter elements are partially separated from each other by a separating device (18), with a through channel (24) of predetermined cross-section for a hydraulic connection between neighboring filter chambers (20, 22),. The filter chambers arranged prior to the filter materials (16) in the flow direction of the fluids for filtering. The filter device permits a combination of main- and side-stream filters in the smallest possible space, whereby very good purity levels for the filtered fluid are nevertheless achieved.Type: GrantFiled: January 3, 2001Date of Patent: August 23, 2005Assignee: Hydac Filtertechnik GmbHInventors: Norbert Sann, Martin Reik, Stefan Hennes, Karl-Heinz Leichner
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Patent number: 6911146Abstract: A filter (10) for use in a water heating vessel, such as an electric kettle, to filter sedimentary material in the water includes a scale collector (25), for example in the form of a compacted mesh block, carried on the filter. The block can be supported by a carrier member (27) permanently or detachably mounted on the filter frame, preferably towards an end of the filter closest to the bottom of the vessel.Type: GrantFiled: December 7, 1999Date of Patent: June 28, 2005Assignee: Koninklijke Philips Electronics, N.V.Inventors: Klaus Melgaard, Simon M. Whiteley
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Patent number: 6893555Abstract: A dual flow filter unit for the filtration of a pressurized liquid such as oil, comprising a closed housing (10) having an inlet (31), and main and secondary outlets (32, 13) for that liquid. The unit further comprises a main filter element (21) arranged in the housing (10) and having an unfiltered fluid surface exposed to the majority of the liquid flow, the flow through the main filter (21) being directed to the main outlet (32) from the housing (10); and a secondary filter element (17) exposed to a portion of the liquid flow supplied to the housing inlet (31), any flow through the secondary filter being directed to the secondary outlet (13) from the housing. The main filter element (21) offers a low resistance to the flow of fluid therethrough relative to the secondary filter element (17) so that the majority of the flow through the inlet (31) is filtered by the main filter element (21) and the remainder by the secondary filter element (17).Type: GrantFiled: February 15, 2001Date of Patent: May 17, 2005Inventors: Alan Philip Roper, Michael Charles Fallows
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Patent number: 6761822Abstract: A filter for filtering a fluid, such as lubricating oil for an engine, has a first element for trapping small particles and a second filter element for trapping sludge, the second filter element being stacked on the first filter element. A flow-deflecting element is disposed between the first filter element and second filter element to provide a spinning motion to oil flowing from the second filter element as that oil joins oil which is passed through the first filter element. The spinning motion of the oil from the bypass filter element encourages mixing of the oil from the second filter element with the oil filtered by the first element. A centrifugal separator is disposed in an annular space between the filter elements and filter housing for imparting a rotary motion to the fluid prior to the fluid passing through the filter elements. This removes large particles from the fluid by centrifugal force so that large particles do not add to the contaminant load in the filter elements.Type: GrantFiled: January 4, 2002Date of Patent: July 13, 2004Assignee: Dana CorporationInventors: Gregory Keith Rhyne, Mark Allen Roll, Willie Luther Stamey, Jr., Johnny Wong
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Patent number: 6666968Abstract: An oil filter assembly has an outer canister in which full flow and bypass flow filtration sections are operatively housed in a nested relationship. Oil forced into the canister has imparted thereto a vortex flow pattern which forces contaminant particles in the oil away from the full flow filter section before the oil passes therethrough. The bypass filtration section is disposed within the full flow filtration section and creates a second vortex flow pattern in the oil which induces a small portion thereof to flow through a bypass filter element while at the same time causing the entire balance of the oil to bypass this filter element and be discharged from the canister after having traversed the filtering portion of only the full flow filtration portion of the filter assembly.Type: GrantFiled: March 22, 2001Date of Patent: December 23, 2003Assignee: Vortex International, LLCInventors: Gerald F. Smith, Loran W. Sutton, Gary F. Krofchalk
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Patent number: 6660160Abstract: A separation apparatus, in particular intended for separation of amalgam from water, includes a pre-settling chamber, a distribution chamber and a fine settling zone. The fine settling zone includes a plate package, with a plurality of plates fixed with spacing, forming settling channels. The plates can be machined so that they are provided with a large number of fine bumps and recesses.Type: GrantFiled: October 15, 1999Date of Patent: December 9, 2003Assignee: Sweden Recycling ABInventor: Leif Ernryd
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Patent number: 6627077Abstract: A multi-part filter combination is received in a stepped bore of a fluid-carrying component. A larger-diameter filter part is associated with a larger-diameter bore portion, and a smaller-diameter filter part is associated with a smaller-diameter bore portion. The two filter parts of the filter combination are connected by a connecting part. When the two filter parts are joined in their respective final position in the bore, this connecting part is detachable by means of a die to be introduced into the bore. The filter combination can be used in a valve block serving to receive a magnet valve.Type: GrantFiled: January 25, 2002Date of Patent: September 30, 2003Assignee: Robert Bosch GmbHInventors: Siegfried Fritsch, Guenther Schnalzger, Michael Krauter, Peter Zimmermann, Alexander Bareiss
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Patent number: 6623631Abstract: There is disclosed a vacuum filtration device for aqueous media that includes a hydrophilic tubular filter element in a cylindrical housing and at least one hydrophobic gas-permeable membrane, coupled with a gas bleed-off valve to allow the escape of air entrained in the filtration medium.Type: GrantFiled: July 26, 2001Date of Patent: September 23, 2003Assignee: Sartorius AGInventors: Andreas Graus, Christian Schäfer
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Patent number: 6585892Abstract: A concentric arrangement of bag-type filter sleeves 11, 12 of a filter insert are removably supported within a concentric arrangement of screens 60, 61 of an annularly-shaped basket 10a. The screens respectively support the filter sleeves against radial flow during filtration. A filter cartridge 37 is carried interiorly of the innermost filter sleeve and is configured to filter the liquid that has first been filtered in the filter insert and before the liquid can exit the filter vessel 30.Type: GrantFiled: October 8, 2002Date of Patent: July 1, 2003Inventor: Moshe Gershenson
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Publication number: 20030106847Abstract: The invention relates to a filter device with a filter housing (10), in which at least two filter elements (12, 14), with differing filter grades of filter material (16), are arranged, which are each partially separated from each other by a separating device (18), with a through channel (24) of predetermined cross-section for a hydraulic connection between neighbouring filter chambers (20, 22), which are arranged prior to the filter materials (16) in the flow direction of the fluids for filtering. According to the invention, the filter device permits a combination of a so-called main- and a so-called side-stream filter in the smallest possible space, whereby very good purity levels for the filtered fluid are nevertheless achieved.Type: ApplicationFiled: September 30, 2002Publication date: June 12, 2003Inventors: Norbert Sann, Martin Reik, Stefan Hennes, Karl-Heinz Leichner
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Patent number: 6569329Abstract: A bottle mountable filtration system typically includes a plurality of different filter elements or filtering and treatment elements having a substantially common central axis that are mounted to extend into a bottle from a cap with a manual valve. Mounting structures may be provided, by screw threads, or by an interference fit, and connect the filter treating elements to the cap. An outer filter treating element may comprise a chlorine removal primarily radial flow outer filter, and an inner treatment element comprising a flavoring, vitamin, mineral, or medication adding component including a mixing chamber which provides an axial flow chamber radially surrounded by the flavoring, etc., adding component. Conversely, the inner treatment element may be a radial flow carbon composite filter used independently or in conjunction with one of several independent outer water treatment elements which may be radial or axial flow in design for the removal of a variety of biological, organic, or inorganic contaminants.Type: GrantFiled: May 8, 2000Date of Patent: May 27, 2003Assignee: Innova Pure Water Inc.Inventor: John E. Nohren, Jr.
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Patent number: 6540914Abstract: A fluid filter which comprises a canister having an open end and a closed end, the canister sealing to an adapter body to prevent leakage between the canister and the adapter body, the adapter body having a plurality of fluid inlet ports extending through the adapter assembly body into the cavity formed by the canister and the adapter body assembly, a threaded fluid outlet port extending through the adapter body, a threaded ring adapter for adapting the outlet port to a variety of connection configurations, a multistage wire mesh filter element having a weave which is designed to prevent fluid contaminants from passing through the filter element while inhibiting the contaminant particles from becoming lodged in the filter mesh, the fluid inlet ports in the adapter body being formed at an angle to create a tornado type turbine fluid motion within the canister to suspend contaminants which are blocked from passage through the screen in the fluid and allow such contaminants to settle in the canister out of the fType: GrantFiled: April 24, 2000Date of Patent: April 1, 2003Assignee: Vortex International, LLCInventor: Gerald F. Smith
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Patent number: 6537446Abstract: An apparatus and system for removing debris and contaminants from water passing through a storm drain generally includes a debris trap adapted to fit within a storm drain a porous, filtering element adapted to separate debris from a water flow passing through the storm drain and a frame for directing the water flow into the porous element. The debris trap includes a frame element adapted to substantially prevent bypass of the debris trap, especially during low water flow conditions. The system may further include a debris block adapted to prevent debris from entering a back curb inlet opening of the storm drain. The debris block includes foam end members for adjustably securing and/or sealing the debris block to edges of the drain inlet.Type: GrantFiled: March 16, 2001Date of Patent: March 25, 2003Assignee: The Water SweeperInventor: Peter S. Sanguinetti
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Patent number: 6517711Abstract: An improved waste treatment system and improved waste treatment system components are provided. In a preferred form, a waste stream is initially separated into primarily solid and primarily liquid components, and the liquids are then fed to a filter assembly. The filter assembly includes a pair of filter elements, and the flow is introduced into the filter assembly at a location between the filter elements. During a filtering operation, the liquid is pumped so that it is drawn through one of the filter elements. Periodically, the flow can be reversed, so that it is directed through the other filter element, at which time the first filter element can also be purged or back flushed. Advantageous waste treatment system arrangements are also provided for household, commercial, or transportation/marine use.Type: GrantFiled: October 1, 1999Date of Patent: February 11, 2003Assignee: Wastech International Inc.Inventors: John M. Rummler, Thomas R. Beal, Guy D. Marchesseault, Christine L. Robblee, Steven McHenry
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Patent number: 6482321Abstract: A suction head is provided for the end of a fuel hose in a fuel tank of a portable implement. The suction head comprises a cup-shaped housing of polymeric material that is closed off by a cap. Provided on the cap is a connector for the end of the fuel hose. The outer surface of the housing is provided with window-like cutouts that are covered by a filter mesh. In order also with narrow, fragmented tank housings to ensure an immersion of the suction head into the fuel in every operating position, a rod-shaped weight member is disposed in the center of the housing. This weight member extends from the base of the housing to the cap, with a first end of the weight member being held on the base and a second end being held on the cap.Type: GrantFiled: November 10, 2000Date of Patent: November 19, 2002Assignee: Andreas Stihl AG & Co.Inventors: Hans Bossler, Roland Adam, Ralf Tuckermann
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Patent number: 6409920Abstract: A filter device includes a cover secured on the upper portion of a filter housing and includes a water inlet and a water outlet. Two or more filter members are received in the filter housing and disposed between the water inlet and the water outlet of the cover for filtering the water. Various kind of filter members may thus be received in a single filter housing in order to form a simplified filter device. A pipe and a filter tube are received in the housing for receiving the filter members. A cap and a cup are secured on the filter tube for securing the tube in the housing.Type: GrantFiled: June 7, 2001Date of Patent: June 25, 2002Inventor: Tsung Hui Lee
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Patent number: 6405875Abstract: A gravity-flow cyst-reducing water filtration device, comprising a removable high surface area cyst-reducing filtration member that provides at least 99.95% removal of 3-4 &mgr;m particles when tested in accordance with NSF standard 53, Drinking Water Treatment Units—Health Effects (September 1997). The cyst-reducing filtration member is adapted for connection to a bottom rim of a filtration cartridge sleeve of a water filter carafe, the cartridge sleeve being integral with a bottom surface of an untreated water reservoir of the water filter carafe. The cartridge sleeve further comprises an air vent hole that is located proximate to a top rim of the cartridge sleeve, wherein the cartridge sleeve further contains a filtration cartridge that is filled with an ion-exchange resin and carbon granules.Type: GrantFiled: December 15, 1999Date of Patent: June 18, 2002Assignee: Corning IncorporatedInventor: Willard A. Cutler
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Patent number: 6387261Abstract: A filter for removing solids from a liquid comprising a filter housing with an inlet and an outlet, a first filtration element nested within the filter housing and having a first plurality of openings, a second filtration element nested within the first filtration element and having a second plurality of openings for filtering grease and non-particulate substances, where the second filtration element has a shorter height with an upper end thereof being located below at least one opening of the first filtration element thereby allowing bypassing of the second filtration element. Alternatively, the filter may also include a third filtration element nested within the second filtration element and having a third plurality of openings where the second filtration element has a shorter height than the third filtration element, an upper end of the second filtration element being located below at least one opening of the third filtration element thereby allowing bypass of the second filtration element.Type: GrantFiled: September 14, 1999Date of Patent: May 14, 2002Inventor: Gregory Mojena
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Patent number: 6360898Abstract: A filter and housing for waste water treatment includes a housing having a plurality of coaxially mounted vertically extending sections adaptable to receive a filter cartridge therein. An upper section is provided with an outlet consisting of at least two coaxially aligned rings of preselected diameters wherein the thickness of the rings and the spacing between the rings is sufficient to receive waste water treatment outlets of different diameters. The filter cartridge is comprised of a stacked arrangement of a plurality of disc-dam units wherein each disc-dam unit is provided with a serpentine configured first dam, the first dam extending upwardly from an upper surface of the disc-dam unit, the first dam having terminating ends spaced at outer terminating edges of the disc dam unit to define a cord segment therebetween. The terminating ends are connected by a second dam having a height less than the first dam.Type: GrantFiled: April 6, 2000Date of Patent: March 26, 2002Inventors: Harry L. Nurse, Jr., John Christensen
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Patent number: 6350379Abstract: A filter for filtering a fluid, such as lubricating oil for an engine, has a full flow filter element and a bypass filter element stacked on the full flow filter element. A flow-deflecting element is disposed between the full flow filter element and bypass filter element to provide a spinning motion to oil flowing from the bypass element as that oil joins oil which is passed through the full flow filter element. The spinning motion of the oil from the bypass filter element encourages mixing of the oil from the bypass filter element with the oil filtered by the full filter element. During operation of the engine this arrangement tends to provide cleaner lubricating oil and therefore reduces engine wear while increasing the time interval between scheduled maintenance.Type: GrantFiled: December 29, 1999Date of Patent: February 26, 2002Assignee: Dana CorporationInventors: Mark Allen Roll, Gregory Keith Rhyne, Willie Luther Stamey, Jr.
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Patent number: 6322697Abstract: The present disclosure relates to a filter assembly including an outer housing, and a removable filter insert that fits within the housing. The filter insert includes a generally cylindrical filter element. An insert body is connected to the filter element. The insert body includes a top end cap in which a top end of the filter element is potted, and a bottom end cap in which a bottom end of the filter element is potted. The insert body also includes a cylindrical liner or wall that surrounds the filter element. The cylindrical liner is spaced-apart from the filter element such that an annular flow passageway is defined between the cylindrical liner and the filter element. The outer wall is configured to prevent contaminants from escaping from the filter insert and contaminating the inside of the housing.Type: GrantFiled: July 19, 1999Date of Patent: November 27, 2001Assignee: Donaldson Company, Inc.Inventors: John R. Hacker, Michael Jon Gustafson
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Patent number: 6290847Abstract: A gravity-flow water filtration cartridge is disclosed herein. The cartridge includes a housing having a compressed bed of ion-exchange resin disposed within an upper region thereof and a high surface area cyst-reducing filter element that is disposed within a lower thereof. The housing includes a middle chamber which separates the compressed bed of ion-exchange resin from the cyst-reducing filter element. The housing further includes a hydrophobic air vent conduit having an entry end that is positioned above a topmost surface of the cyst reducing filter element and an exit end that is positioned at least at a lowest surface of the cyst-reducing filter element, wherein the entry end includes a membrane having at least one hydrophobic side.Type: GrantFiled: December 15, 1999Date of Patent: September 18, 2001Assignee: Corning IncorporatedInventor: Willard A. Cutler
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Patent number: 6267875Abstract: The invention is a spin-on type filter with a reclaimed permanent filter casing and permanent filtering media that are washable and reusable. There are three distinct progressive filtering systems that function simultaneously,but separately within one filter housing, one is the full flow filtering at 10 micron capability while the other is in its bypass fine filtering mode at 1 to 3 micron filtering capability. In addition, a safety full flow filter can be activated to filter the return oil while the main full flow medium is fouled. Each system can be implemented with multiple media. The main body of the filter, which comprises the filter head and the media, can be separated easily for servicing from its casing which is designed to attach to the engine. Fine stainless steel cloths are utilized as filtering media which can last the life of an engine Furthermore, magnets arc utilized to trap suspending metal filings in oil flow.Type: GrantFiled: November 23, 1998Date of Patent: July 31, 2001Inventor: Ano Leo
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Patent number: 6251291Abstract: A reservoir-and filter system for receiving fluid and for removing impurities from fluid is provided in an embodiment of the invention. The system includes a housing with at least two cavities; a first cavity with at least one unfiltered-fluid inlet and a second cavity with at least one filtrate outlet. In this embodiment, a filter member is disposed so as to separate the cavities. In addition, a filtering trap is disposed so as to directly accept fluid as it enters the first cavity, filter it, and minimize clogging of the filter member. A coarse filter shroud providing a funnel shape at the opening of a cup-shaped trap is included in a preferred embodiment. In an embodiment, at least one gas outlet adaptable for connection to a vacuum source is associated with the second cavity. A method for removing impurities from blood within an extracorporeal circuit is also provided in a further embodiment.Type: GrantFiled: December 28, 1998Date of Patent: June 26, 2001Assignee: Tranfusion Technologies CorporationInventors: David G. Lamphere, Thomas D. Headley, Clair L. Strohl, Clifford Martin
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Patent number: 6251269Abstract: A filtration system that is coupled to a fluid flow for creating a uniform horizontal fluid flow through the filtration system to remove impurities from the fluid flow. The filtration system includes a filter having an inlet region, an outlet region, and a filter housing fluidly coupled between the inlet region and the outlet region. The inlet region includes an inlet pipe and a mixing chamber for creating a uniform horizontal fluid flow through the filter. The filter housing includes a removable filter element that receives the uniform horizontal fluid flow and removes impurities from flow, and the outlet region discharges the flow from the filter. In one embodiment, the inlet pipe includes a planar discharge end that is angled with respect to the horizontal axis of the fluid, and the mixing chamber includes a closed end, which the fluid flow strikes as it exits the inlet pipe to create a uniform horizontal flow through the mixing chamber.Type: GrantFiled: March 18, 1999Date of Patent: June 26, 2001Inventors: Dennis J. Johnson, Ronald P. Bloom
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Patent number: 6190548Abstract: An enclosed, elongated structure for placement in the ground to filter and biologically pretreat wastewater after it leaves a septic tank and before it enters a drain field. The structure includes an upstream chamber or compartment connected to an inlet and containing a filter media such as stone and two or more baffles positioned crosswise to the direction of flow to direct the wastewater through multiple, sequential downward and upward flow paths through the stone for filtering and for anaerobic biological conversion of undesirable substances in the wastewater. A downstream chamber or compartment vented to atmosphere contains a filter media such as gravelly sand and receives the wastewater flow from the upstream chamber for further progressive filtering and for aerobic biological conversion of undesirable substances. Beneath the gravelly sand is a U-shaped perforated pipe for collecting the wastewater and directing it to an outlet leading to the drain field.Type: GrantFiled: March 16, 1999Date of Patent: February 20, 2001Inventor: Albert Frick
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Patent number: 6174438Abstract: A filter assembly includes a replaceable filter element disposed within a filter housing. The housing includes a removable cover, and a fitting including an internal central conduit extending along the central axis of the housing. The central conduit is bisected along its length and has a pair of flow channels connected to a pair of ports in the fitting. Another port is provided in the fitting and a still further port is provided in the housing. The filter element includes a first circular imperforate end cap, and a second annular imperforate end cap dimensioned to receive the central conduit. First and second filter media loops are supported between the first and second end caps. An imperforate cylindrical wall is radially disposed between the first and second filter media loops. Annular seals are provided around the opening in the second end cap, at the inner end of the first filter media loop, and at the inner end of the cylindrical wall.Type: GrantFiled: October 15, 1999Date of Patent: January 16, 2001Assignee: Parker-Hannifin CorporationInventors: David H. Hodgkins, Walter H. Stone
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Patent number: 5814211Abstract: The invention is a spin-on type filter with a reclaimed permanent filter casing and permanent filtering mediums that are washable and reusable. There are three distinct progressive filtering systems that function simultaneously, but separately within one filter housing; one is the full flow filtering at 10 micron capability while the other is in its by-pass fine filtering mode at 1 to 3 micron filtering capability. In addition, a safety full flow filter can be activated to filter the return oil while the main fill flow medium is fouled. Each system can be implemented with multi mediums. The main body of the filter, which comprises the filter head and the mediums, can be separated easily for servicing from its casing which is designed to attach to the engine. Fine stainless steel cloths are being utilized as filtering mediums which can last the life of an engine. Further more, magnetic pieces are utilized to trap suspending metal filings in oil flow.Type: GrantFiled: May 23, 1996Date of Patent: September 29, 1998Inventor: Ano Leo
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Patent number: 5776341Abstract: A fuel intake device (20) for a fuel system (10) having a fuel tank (14) for containing a supply of fuel (16) and an internal fuel feed line (18) which is disposed internally of the fuel tank (14) and which extends into a sump region (26) thereof. The fuel intake device (20) is characterized by a filter assembly (40) which envelopes an end portion (18.sub.E) of the internal fuel feed line (18) and which includes a lower fuel filtering portion (42) and an upper fuel bypass portion (44). The lower fuel filtering portion (42) has a plurality of fine apertures (42.sub.O) therein for facilitating a primary flow (P.sub.F) of fuel (16) therethrough and for filtering debris from the supply of fuel (16) in a normal operating mode. The upper fuel bypass portion (44) has a plurality of coarse apertures (44.sub.O) for facilitating a secondary flow (S.sub.F) of fuel therethrough in a bypass operating mode. Furthermore, the filter assembly (40) is situated about the end portion (18.sub.E) such that the inlet orifice (18.Type: GrantFiled: December 23, 1996Date of Patent: July 7, 1998Assignee: Sikorsky Aircraft CorporationInventors: Richard S. Barnard, Scott A. Chasen
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Patent number: 5766463Abstract: A fuel filter cartridge is formed from a pair of shell sections which are joined along a roll seam to form a retaining shoulder. The sections have generally cylindrical walls which are symmetric about a central axis. One of the sections has a diameter greater than the other section. Angularly spaced arcuate protrusions or keys protrude radially from the cylindrical wall of the cartridge.Type: GrantFiled: July 18, 1996Date of Patent: June 16, 1998Assignee: Stanadyne Automotive Corp.Inventors: Leon P. Janik, M. Craig Maxwell
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Patent number: 5728292Abstract: A filter is provided for use with an in-tank fuel pump for an internal combustion engine. The filter is disposed within a fuel tank and includes a main filtration chamber connected to an inlet of the fuel pump and a return fuel chamber connected to the engine for introducing thereto return fuel from the engine. The main filtration chamber has an upper side peripheral wall formed from a meshed filter medium. The return fuel chamber is connected to the main filtration chamber in such a manner that the upper side peripheral wall of the main filtration chamber serves as a partition wall between the main filtration chamber and the return fuel chamber. In one embodiment, the return fuel chamber has a peripheral wall formed from sheet or plate impermeable to fluid.Type: GrantFiled: August 28, 1996Date of Patent: March 17, 1998Assignee: Nissan Motor Co., Ltd.Inventors: Takashi Hashimoto, Yuichi Fujinuma
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Patent number: 5723044Abstract: A water filtration system for preventing a Zebra Mussel from entering a water system having a water intake line extending into an aquatic environment exposed to Zebra Mussels. The system contains an intake line connection for connecting the filtration system to the intake line; at least one water collection line extending from the intake line connection; a water intake line which is disposed sub-statantially parallel to the water collection line and which contains an orifice with a top surface and a copper screen recessed at least about 2.5 inches from the top surface; a first water filter and a second water filter, wherein each of these filters has a largest pore size that is small enough to prevent passage of an egg or veliger of Zebra Mussels; a a copper screen surrounding each of the first water filter and said second water filter; and a housing surrounding each of the water filters and including a first filter intake and a second filter intake.Type: GrantFiled: January 7, 1997Date of Patent: March 3, 1998Assignee: Zebra Mussel Filter Systems, Inc.Inventors: Harry C. Gleason, Jeffrey L. Bond
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Patent number: 5698097Abstract: An oil filter for internal combustion engines is disclosed herein. The filter includes a housing with a bottom arranged below an open top and a screw-on cover threadedly engaged within the open top. The housing includes an inlet duct, a first oil discharge duct in the bottom of the housing, and a second oil discharge duct in the bottom of the housing and coaxially surrounding the first oil discharge duct. A support part is provided within the housing having a first end which is connected to the cover in an axially force-transmitting manner and a second free end inserted into the first oil discharge duct when the cover fully threadedly engaged to the open end of said housing to sealingly close the first discharge duct, and is withdrawn from the discharge duct when the cover is removed from the open end of the housing to enable discharging of oil from the housing via the first oil discharge duct.Type: GrantFiled: September 13, 1995Date of Patent: December 16, 1997Assignee: Knecht Filterwerke GmbHInventors: Hans Gebert, Rolf Mohle, Dietmar Sonntag, Elke Bruss, Dietwart Guntert, Hubert Muller
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Patent number: 5695637Abstract: A combined full flow and bypass oil filter for internal combustion engines includes a generally cylindrical filter body and a generally cylindrical filter head which is threadedly attached to the filter body. The filter head includes an inlet and an outlet and the flow path between the inlet and outlet extends through the filter body. Disposed within the filter body is a generally cylindrical and hollow full flow filtering element and a generally cylindrical and hollow bypass filtering element. The incoming flow of lubricating oil passes through the outer diameter surfaces of the full flow and bypass filtering elements and exits from these filtering elements through their hollow interiors. Concentrically positioned in the exiting flow path of the full flow filter is a Venturi nozzle which creates a low pressure zone.Type: GrantFiled: August 27, 1996Date of Patent: December 9, 1997Assignee: Fleetguard, Inc.Inventors: Zemin Jiang, Ted S. Loftis, Dwight S. Suiter, Erika B. Motlow, Mike B. Lanius, Sargeon Billy Hedgecough
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Patent number: 5607585Abstract: An apparatus for filtering plastic melts, which comprises a filter housing (1) having at least one cylindrical filter receiving chamber (8), and with a tubular filter cartridge (2) mounted in the chamber. An annular melt flow space (9) for the plastic melt is defined between the outer periphery of the filter and the inside wall of the chamber, such that the melt flows radially inwardly through the filter medium of the filter cartridge and into the central passage of the filter cartridge and then to an outlet opening of the housing. An additional melt flow outlet channel (12) is positioned adjacent the downstream end of the filter cartridge, and in one embodiment, the melt is able to flow via the additional melt flow outflow channel to the outside of the housing. In a second embodiment, the melt can flow via the additional melt flow outflow channel and an additional filter (11) and return to the main flow.Type: GrantFiled: July 17, 1995Date of Patent: March 4, 1997Assignee: Barmag AGInventors: Knut Hobrecht, Jorg Alexander
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Patent number: 5569373Abstract: A fluid filter which comprises a canister having an open end and a closed end, the canister sealing to an adapter body to prevent leakage between the canister and the adapter body, the adapter body having a plurality of angled fluid inlet ports extending through the adapter assembly body into the cavity formed by the canister and the adapter body assembly, a threaded fluid outlet port extending through the adapter body, a threaded ring adapter for adapting the outlet port to a variety of filter receptacles, a multistage wire mesh filter element having a weave which is designed to prevent fluid contaminants from passing through the filter element while inhibiting the contaminant particles from becoming lodged in the filter mesh, the fluid inlet ports in the adapter body being formed at an angle to create a tornado type turbine fluid motion within the canister to suspend contaminants which are blocked from passage through the screen in the fluid and allow such contaminants to settle in the canister out of the fType: GrantFiled: June 28, 1995Date of Patent: October 29, 1996Inventors: Gerald F. Smith, William J. Ellis
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Patent number: 5536402Abstract: Improved high capacity fluid filter assemblies (10, 58) especially adapted for racing vehicles are provided. The assemblies (10, 58) include an elongated, rigid tubular outer casing (12) with endmost fittings (22, 60, 24) permitting flow of fluid through the casing (12). An elongated filtering element (14) formed of sintered bronze is located within the casing (12) and has a length at least three times the maximum outer dimension of the filtering element (14). In order to promote flow of fluid through the filtering element, a continuous fluid zone (52) is provided within the casing (12) outboard of the filtering element (14). A secondary sintered bronze filtering member (54) may be secured within the outlet end fitting (24).Type: GrantFiled: August 8, 1994Date of Patent: July 16, 1996Assignee: Kluhsman Machine, Inc.Inventor: Melvin L. Kluhsman
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Patent number: 5527452Abstract: A device providing for tribochemical regime in the lubrication system of a mechanism comprises a casing (1), a cover (2) with inlet openings (3) and an outlet sleeve (4) for the inlet and outlet of the oil, a non-return valve (5), a relief valve (6), a standard hollow full-flow filtering element (7), a tribochemical package consisting of coaxial perforated shells (8 and 9) enveloped in a filtering material (11), granulated alkaline reagent (12) placed between the shell (9) and the filtering element (7), as well as iodine with which is impregnated the filtering material (11) of the shell (8). The shells (8 and 9) consist of truncated cones with oppositely oriented bases. Their larger and smaller bases, respectively, are secured with tension on the casing of the relief valve (6), the larger base of the shell (9) is secured with tension on the outlet sleeve (4) and inside it is secured, at interference fit, a smaller base of the shell (8).Type: GrantFiled: July 29, 1994Date of Patent: June 18, 1996Assignee: Metzhotraslevoe Nauchno-Proizvodstvennoe Obedinenie EkologiyaInventors: Boris P. Grigoriev, deceased, Dmitry N. Glebovsky, Anatoly I. Belotserkovets, Mikhail E. Judovich, Elena A. Busko
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Patent number: 5525222Abstract: Disclosed herein are improvements to a water filtration system on a water intake line that prevent the infestation of Zebra Mussels in the water system. The water filtration system filters any water entering the water intake line through a filter having a largest pore size that is small enough to prevent the passage of an eggs or veliger of Zebra Mussels. To prevent accumulation of Zebra Mussels on the filters and the filtration unit, copper screens surround the filters and the water intake to the filtration system. The filters are also provided with threaded ends to facilitate easy and reliable removal and replacement of the filters when needed.Type: GrantFiled: July 31, 1995Date of Patent: June 11, 1996Assignee: Zebra Mussel Filter Systems, Inc.Inventors: Harry Gleason, Jeffery Bond
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Patent number: 5447627Abstract: A dual-flow lubricant filter assembly having a bypass filter element with a full-flow filter element stacked thereon includes a grommet disposed between the filter elements for isolating lubricant streams after the lubricant has passed through the filter elements. The grommet is molded of a resinous material and includes an external flange which is sandwiched between the bypass and full-flow filter elements in order to axially position the grommet. The grommet also includes an internal flange which seals with an unthreaded portion of a standpipe with which the filter assembly is coupled.Type: GrantFiled: November 22, 1993Date of Patent: September 5, 1995Assignee: Dana CorporationInventors: Christopher L. Loafman, Timothy L. Memmer
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Patent number: 5443724Abstract: A liquid purification system is provided which is capable of separating a first liquid, that is wholly or partly immiscible in and forms a discontinuous phase with a second, continuous phase-forming liquid, from the second liquid, which includes at least one coalescing element or assembly for coalescing the first liquid having at least one fluid inlet at the top thereof; and at least one separating element or assembly for separating droplets of the first liquid from the second liquid, the at least one coalescing element or assembly being arranged in superposed and fluid communicable relationship above the at least one separating element or assemblyType: GrantFiled: March 29, 1993Date of Patent: August 22, 1995Assignee: Pall CorporationInventors: Kenneth M. Williamson, Scott A. Whitney, Alan R. Rausch, Thomas C. Welch, Jr.
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Patent number: 5441637Abstract: A suction head for a fuel line of a fuel tank, especially for hand-held working tools such as motor chainsaws, has a cup-shaped housing made of plastic and comprising a mantle wall with cutouts and an end face with an opening. A filter mesh is covering the cutouts. A filter insert is inserted into the housing through the opening in the end face. A cap made of plastic and having a connector for the fuel line is sealingly connected to the end face with the opening.Type: GrantFiled: October 29, 1993Date of Patent: August 15, 1995Assignee: Andreas StihlInventors: Kurt Gutjahr, Hansjorg Bossler
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Patent number: 5425882Abstract: The invention relates to an apparatus for removing dirt particles (with and without oil deposition) from water or from waste water without free oil, in particular waste water which occurs in commercial laundries after the washing of garments, work clothes and the like. It includes a closeable tank (10) which has an inflow opening (11) and at the bottom a sieve drain (12, 13), and in the interior above the drain a layer of textiles is provided which contains in particular used garments as filter.Type: GrantFiled: November 20, 1992Date of Patent: June 20, 1995Assignee: Boco GmbH & Co.Inventor: Reinhard Wolk
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Patent number: 5413711Abstract: A fuel filter assembly employs a base which mounts a disposable filter cartridge. A pair of axial conduits provide fluid communication between the base and the cartridge. An orifice located in one of the conduits provides a bleed vent which controls the formation of air bubbles in filtered fuel exiting the fuel filter.Type: GrantFiled: November 19, 1993Date of Patent: May 9, 1995Assignee: Stanadyne Automotive Corp.Inventor: Leon P. Janik
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Patent number: 5409608Abstract: A filter for an in-tank pump of an automobile fuel tank includes a flat bag-shaped filter body, a connector body and a suction nozzle. The filter body has a closed front end and a rear end wall and includes a mesh member and a filter frame having a plurality of longitudinal and lateral ribs formed on the upper and lower portions thereof. The connector body includes a cylindrical attachment for attaching the filter body to a suction port of an in-tank pump and an end plate joined to an outer surface of the rear end wall of the filter body. The suction nozzle is attached to the end plate of the connector body so that it communicates with the cylindrical attachment and thrusts into the filter body. The suction nozzle is made of a deformable material and formed into a mesh cylinder having a closed forward end disposed within the filter body at a position of the closed front end of the filter body.Type: GrantFiled: December 23, 1992Date of Patent: April 25, 1995Assignees: Aisan Industry Co., Ltd., Nifco Inc.Inventors: Shigeru Yoshida, Shinichi Fujii, Hideya Miura
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Patent number: 5378358Abstract: A fuel processing unit can dewater and heat fuel before delivery to a filter. The unit has a housing with a settling chamber and an inlet communicating with the chamber. The housing has a filter connection adapted to connect the filter in series with the chamber. The unit also has a heater cable with a predetermined length. The heater cable extends from the chamber through the inlet and outside the housing.Type: GrantFiled: May 10, 1993Date of Patent: January 3, 1995Inventor: Robert Park
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Patent number: 5378363Abstract: A fluid filter, preferably having a filter body, a first and second filtration assembly contained within the filter body and a cleaning device also contained within the filter body. The first and second filtration assemblies have at least one filtering element and have an enclosure for receiving the filtered fluid, the enclosure being separated from the rest of the filter by the filtering elements of the first and second filtration assemblies. The cleaning device periodically cleans the filtering elements of the first and second filtration assemblies and has an enclosure for receiving the residues of cleaning from the filtering elements of the first and second filtration assemblies, the enclosure being separated from the filtering elements of the first and second filtration assemblies and having a permanent opening for evacuating the residues of cleaning. The filtering elements of the first and second filtration assemblies present notably different filtration calibrations.Type: GrantFiled: June 19, 1992Date of Patent: January 3, 1995Inventors: Theophile Christophe, Jean-Claude Moatti
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Patent number: 5330640Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.Type: GrantFiled: August 18, 1993Date of Patent: July 19, 1994Assignee: Mountain Safety Research, Inc.Inventors: James F. Fife, Daniel J. Vorhis, Kenneth D. Laughlen, Nancy L. Dienes
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Patent number: 5316665Abstract: The invention is a disk-shaped screen adapted for removable placement onto one end of a standard-type oil filter. When the screen is placed on the oil filter, it is located in an area bounded by the oil filter's mounting gasket and it overlies the filter's inlet ports. The screen is made of a wire mesh having approximately 1600 openings per square inch. The screen functions to collect larger-sized particles from the oil stream before they enter the interior of the oil filter. By collecting these particles in a readily viewable manner, the screen enables a person to easily determine from the types and size of collected particles if any unusual engine wear has occurred or if the engine has suffered internal damage.Type: GrantFiled: October 16, 1992Date of Patent: May 31, 1994Inventor: Robert M. Hart
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Patent number: RE35667Abstract: The invention provides a faucet-mounted water filter comprising an upright tubular diverter body that is adapted to be secured to the open end of the water faucet. At the bottom of the diverter body is a water outlet through which unfiltered water can be dispensed. In the diverter body is a valve with a valve outlet duct projecting from one side of the diverter body. A manually movable valve handle projects from the diverter body and is connected to the valve for directing the flow of water either through the water outlet (when unfiltered water is required) or for diverting water through the outlet duct. A filter housing is mounted upon the duct and is preferably connected to the diverter by means of the duct. A carbon block filter element is provided in the filter housing which includes a vertical water inlet surface on an outside wall and a water outlet at the bottom. The filter housing includes an annular water distribution chamber for unfiltered water which surrounds the filter element.Type: GrantFiled: December 20, 1993Date of Patent: November 25, 1997Assignee: Ultrapure Systems, Inc.Inventor: Randy B. Heiligman