Internal Fixed Shoulder Supporting Filter Element Patents (Class 210/451)
  • Patent number: 8157997
    Abstract: A canister filter system includes a base, a canister attachable to the base, and positioned inside the canister a filter element having filter media. A drain engages and forms a seal with the filter element in a closed position. In an open position, the drain allows fluid to be removed from the canister. Because the drain is engaged to and forms a seal with the filter element in the closed position, the drain cannot be closed unless a filter element is present inside the canister. This prevents accidental or intentional use of the filter system without a filter element in place.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 17, 2012
    Assignee: Caterpillar Inc.
    Inventors: Mark T. Allott, David Ofori-Amoah
  • Patent number: 8114284
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Grant
    Filed: August 1, 2009
    Date of Patent: February 14, 2012
    Assignee: BRITA GmbH
    Inventors: Hilmar Walde, Stefan Gröss, Gunder Guckes
  • Patent number: 8061529
    Abstract: A filter cartridge (10), in this case comprising an injection moulded cylindrical plastics body (11) having spaced anti-tracking ribs (12) which are disposed unevenly along the inner surface (13) of the hollow body (11). First and second paper rolls as filter elements (14 and 15) have been pushed under compression into the hollow body (11) and are separated by spacer means (16) located centrally within the hollow body (11). Spacer means (16) is made from two separate spacers (18) which are generally made in the form of a spoked wheel type arrangement. Each spacer (18) comprises an outer ring (19) and an inner ring (20), the inner ring (20) has four apertures or recesses (21) on its top and offset by 45 degrees equally on its opposite side are four more equally spaced apertures (21) making a total of eight, the apertures provide flow through passages (21) through the inner ring (20), plastic connector portions (22) extend radially between the rings (19 and 20).
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: November 22, 2011
    Assignee: Filter Technology Australia Pty Ltd.
    Inventor: Philip Charles Marheine
  • Patent number: 8025802
    Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, the correct seating of which is ensured and can be established by the user. The apparatus is characterized in that the inlet funnel 10 has at least one first fixing means 30 below the receiving opening 13, and in that the filter cartridge 100 has at least one second fixing means 130 below and at a distance from the sealing rim 160, which second fixing means, when the filter cartridge 100 is being fitted into the receiving opening 13, interacts with the first fixing means 30.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: September 27, 2011
    Assignee: Brita GmbH
    Inventors: Hilmar Walde, Stefan Gröss, Gunder Guckes
  • Patent number: 8006848
    Abstract: A filter includes a first case member and a second case member that are made of synthetic resin and are mutually joined to form a filter chamber, and a filter element including a filtering medium and a holding frame that is made of synthetic resin, which holds a peripheral portion of the filtering medium and is held between joining ends of the case members. Weld portions formed by laser light are provided at a contact area extending in a joining direction between the holding frame of the filter element and at least one joining end of the joining ends of the case members.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 30, 2011
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventor: Tatsuya Goto
  • Patent number: 7997422
    Abstract: A filter has a housing with cylindrical wall having a first end face and a second end face. The housing has an end wall that closes of the first end face. A filter insert is arranged in the housing. A lid is attached to the cylindrical wall and closes off the second end face. The housing has two layers of different plastic materials, wherein the different plastic materials have different ductility and in particular different hardness. The cylindrical wall has elements that provide a positive-locking connection of the two layers in the axial direction of the housing.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: August 16, 2011
    Assignee: Mann+Hummel GmbH
    Inventors: Gunther Kraft, Andre Rösgen, Peter Müller
  • Patent number: 7997423
    Abstract: A cooking oil container has a filter cup retained at the upper end thereof. The filter cup retains a planar circular filter at the lower end and a seal between the filter holder and the bottom of the filter cup prevents oil from overflowing around the circumference of the filter holder to avoid the filter. The filter cup is spaced from the inner walls of the container to allow air to escape from the bottom of the container. The top of the container has a grip ring and the inverted top is useable as a drip tray for the filter cup while oil is being poured out of the container.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: August 16, 2011
    Inventors: David Goodman, John R. Howard, Robert W. Machacek
  • Patent number: 7992722
    Abstract: A fluid filter housing for receipt of a fluid filter element and for threaded attachment to a mounting base includes a unitary, molded plastic shell, an annular, threaded nutplate, and a plastic weld ring. The plastic shell defines a hollow interior for receipt of the fluid filter element. The plastic shell also defines one side of an O-ring groove. The threaded nutplate includes a groove-side surface that defines a second side of the O-ring groove. The weld ring is securely joined to the threaded nutplate by co-molding and is securely joined to the shell by a spin weld process. The weld ring provides a third surface for the O-ring groove. As such, three separate components are used to create an inwardly opening three-sided annular groove for receipt of an annular seal for sealing an interface between the fluid filter housing and the mounting base.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: August 9, 2011
    Assignee: Cummins Filtration IP, Inc.
    Inventor: Chad M. Thomas
  • Patent number: 7967977
    Abstract: A filter device, especially a line filter forming part of hydraulic installations, includes a filter housing (1) that can be removed from a filter head and is used to receive a filter element (5) that separates a non-filtered side (13) from a filtered side (11) in a position in the filter housing for the operation of the filter. The filter device is provided with a display device (19, 21) signaling the absence or presence of the filter element (5) in the filter housing (1) in the operating position.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: June 28, 2011
    Assignee: Hydac Filtertechnik GmbH
    Inventor: Viktor Lauer
  • Patent number: 7959803
    Abstract: A device for securing a filter element within a housing of a separation system, wherein the housing has an inner wall and includes therein a filter seating to seat the filter element, includes at least one sealing member adapted to form a sealing connection with the filter element and a sealing connection with the inner wall of the housing. The device further includes at least one compression member to compress the elastomeric sealing member to form the sealing connection with the filter and the sealing connection with the inner wall of the housing.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: June 14, 2011
    Inventor: Gregory S. Antoun
  • Patent number: 7922004
    Abstract: A diesel filter includes a filter member and a water reservoir formed below the filter member. The filter member has a case, a cap for closing the opening of the case, an element, and an element-holding member for holding an upper part of the element, and is detachably housed in the case. The element-holding member has an opening that allows fuel to flow out, and the fuel introduced from a fuel inlet port to a portion above the element-holding member is then introduced to the water reservoir via a passage formed between the inner peripheral surface of the case and the outer peripheral surface of the element.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: April 12, 2011
    Assignees: Kyosan Denki Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshiharu Matsushita, Suminobu Otsubo, Yasuji Nishi, Satoshi Nagata
  • Patent number: 7887704
    Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 15, 2011
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
  • Patent number: 7882961
    Abstract: One embodiment is a unique replaceable filter element. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 8, 2011
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Loick Menez, Kelly R. Schmitz, Gerard Malgorn, Ismail C. Bagci, Kevin C. South, Jeffrey B. Sharp
  • Patent number: 7875178
    Abstract: A drain basin insert having a housing, with the housing having a sidewall having a top edge and a bottom edge, and with the housing having a perforated base member secured to the sidewall at the lower edge of the sidewall, and with the housing having an outwardly extending flange at the top edge of the sidewall. The insert also includes a secondary filter means having a permeable container having hydrophobic filter media therein. The insert also has a perforated, rigid structural member having a bottom wall and a raised portion, with the raised portion attached to the bottom wall and extending upwardly therefrom. The insert also has a primary filter means having an outer sidewall, a bottom surface, and a central portion, with the bottom surface contacting the bottom wall of the perforated structural member, and with the central portion contacting the raised portion of the perforated structural member.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: January 25, 2011
    Assignee: ADS Structures, Inc.
    Inventor: Courtney Ashliman
  • Patent number: 7845500
    Abstract: An oil filter unit for arrangement in the oil sump of an oil circuit, particularly in an automatic transmission. The oil filter unit has a multi-part filter housing with a filter chamber disposed therein such that an oil inlet and an oil outlet communicate with the filter chamber. A filter element is sealingly mounted in the housing between the oil inlet and the oil outlet. The filter element has a pleated filter medium, which is sealingly enclosed by a frame, and the frame has seal contours designed to cooperate with the contours of the filter housing.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: December 7, 2010
    Assignee: Mann + Hummel GmbH
    Inventors: Claudia Hueppchen, Josef Rohrmeier, Dieter Amesoeder, Sven Epli, Aude Nicolas
  • Patent number: 7754078
    Abstract: The invention concerns a filter for liquids loaded with solid particles, comprising a vessel (52) provided with an inlet for the liquid to be filtered, an outlet for the filtrate emerging into a manifold and a discharge orifice for the sludge of solid particles and wherein is enclosed a plurality of filtering elements (10), each filtering element shaped like an elongated pocket (16) of fabric (12) of filtering media having an upper opening (10) in communication with the outlet and mounted around frames (18) provided with longitudinal drainage channels (30) and suspended to support elements housed in said vessel and comprising a radial pipe (20) forming a manifold wherein emerges the opening of the filtering elements. The invention is characterized in that the upper edge of said pockets is provided with a hem (17) receiving a stiffening element (19) and urged to be tightly fixed in a peripheral catching element (21) integral with said support elements.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: July 13, 2010
    Inventor: Guy Gaudfrin
  • Patent number: 7735659
    Abstract: A filter element, consisting of two pleated filter cloths has side frame members or strips and top and bottom frame members. The top and bottom edges of the cloths are encapsulated in the frame members, and the side edges of the filter cloths are clamped by the side frame members. This may be done by molding the frame members onto the cloth side edges, or by providing a slot in a tubular side frame member within which the side edges are held against the inner face of the slotted wall of the tube by a clamping member, such as a U-shaped strip, or by an indented part of the opposed wall.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: June 15, 2010
    Assignee: Madison Filter 981 Ltd.
    Inventor: Robert Haes
  • Patent number: 7731036
    Abstract: A reversible vacuum filter cartridge for connection to a pair of tubes or other entities to filter a liquid medium placed in one of the tubes or other entities is described. The filter cartridge is comprised of a male coupling and a female coupling. The couplings are interconnected to one another by simply pushing a mating projection of the male coupling into a mating cavity of the female coupling. A connecting port is provided in the male and female coupling and has a conduit communicating with tube connecting ends of each of the couplings which communicate with an open end of a tube connected to each of the couplings. The connecting port is identical in each of the couplings and serves either as vacuum port or an air intake port. A filter disk is retained captive between perforated outer walls of each of the couplings when interconnected together in fluid-tight relationship.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 8, 2010
    Assignee: SCP Science
    Inventors: Arthur Ross, George Feilders
  • Patent number: 7708147
    Abstract: A fluid filter assembly comprises a filter and a case. The case defines a filter chamber receiving the filter. The case comprises a notch extending into the filter chamber and engaging the filter.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: May 4, 2010
    Assignee: Purolator Filters NA LLC
    Inventors: Nishaj Attassery, Bruce Murray Roxburgh, Lorne Burry
  • Patent number: 7628280
    Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter head, a seal adaptor, and a filter member comprising a shell enclosing a cartridge. Unique features for interface between the filter cartridge and the filter head are provided. Also provided are unique filter head features and cartridge features.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 8, 2009
    Assignee: Donaldson Company, Inc.
    Inventors: Brian Mandt, Brent A. Gulsvig, John R. Hacker
  • Patent number: 7604128
    Abstract: A filter apparatus including a housing (2) and a filter insert (4), with an inlet opening formed on the housing (2) and an outlet fitting (6) mounted on a housing wall. The outlet fitting (6) has a contact face (7) for contact with the housing (2) and is provided with a tubular segment (13), which protrudes through an opening (9) of the housing, and a mounting element (22) is attached to the tubular segment (13) such that a region (10) of the housing (2) surrounding the opening (9) is clamped between the contact face (7) of the outlet fitting (6) and the mounting element (22).
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: October 20, 2009
    Assignee: Mann & Hummel GmbH
    Inventors: Klemens Dworatzek, Ralf Bauder
  • Patent number: 7588732
    Abstract: The present invention includes a harvesting and irrigation device, a method and a kit for the collection of viable fat cells and/or adipose tissue with decreased handing and improved yield and viability.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: September 15, 2009
    Assignee: Genesis Biosystems, Inc.
    Inventor: Brian Buss
  • Patent number: 7556155
    Abstract: A fluid filter arrangement has a housing, a filter cartridge oriented within the housing, and a projection arrangement. The projection arrangement is oriented to space the filter cartridge from a wall of the housing in order to provide a fluid flow path between the filter cartridge and the housing wall. In some arrangements, the projection arrangement is part of an end cap. Embodiments of the projections include axial extensions, radial extensions, and angled extensions including both radial and axial components. Systems of use, methods of filtering, methods of making, and methods of servicing include arrangements of these types.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 7, 2009
    Assignee: Donaldson Company, Inc.
    Inventors: David B. Harder, Philip Edward Johnson, Eivind Stenersen, Curt A. Rausch, John R. Hacker
  • Publication number: 20090134088
    Abstract: A fluid filter is provided with: a case member that is installed on a valve body in which fluid paths are formed and forms a filter chamber in cooperation with the valve body; a filter element that is disposed in the filter chamber and includes a filter medium and a resin supporting frame that supports the outer peripheral edge of the filter medium; and a seal member that is in pressure contact with the surface of the inner peripheral side of the upper end portion of the peripheral wall of the case member, the surface of the outer peripheral side of the upper end portion of the supporting frame, and the surface of the valve body.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 28, 2009
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Hideto MORISHITA, Shuji YAMAGUCHI
  • Patent number: 7534344
    Abstract: An upflow stormwater filter has horizontally aligned filter media to provide a high throughput for treatment of contaminated water, longer life to filter media, and without material head drop.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: May 19, 2009
    Assignees: AquaShield, Inc.
    Inventors: J. Kelly Williamson, Eric Rominger
  • Patent number: 7494017
    Abstract: A filter includes a filter element with an enlarged end cap at one end of a media ring with an elliptical flange set oblique or angled to the longitudinal axis of the element. The flange carries a sealing element, and is closely and sealingly received in a head casting of the filter to divide the head casting into inlet and outlet partitions. The end cap directs fluid from a transverse port in the housing into an axial flow path into the central cavity of the element, where the fluid flows radially outward through the media, and then out through an opposite transverse port in the head casting. The element can be removed when it is spent from the head casting after removal of an end closure.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 24, 2009
    Assignee: Parker-Hannifin Corporation
    Inventor: Daniel W. Miller
  • Publication number: 20090045131
    Abstract: A blood filter device includes: a housing that includes a dome 2 provided with a blood inlet, a filter retaining portion 3 that is positioned below the dome, and a bottom portion 4 provided with a blood outlet; and a filter 8 that is mounted in a cavity of the filter retaining portion and partitions a cavity of the housing into a dome side and a bottom portion side. A sheet-like filter member 8a of the filter forms a plurality of pleats, and ridgelines of the respective pleats traverse the filter retaining portion in parallel respectively.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 19, 2009
    Applicant: JMS CO., LTD.
    Inventors: Masayoshi Omori, Shota Nakao, Yutaka Katsuno
  • Publication number: 20090032455
    Abstract: An object of the present invention is to provide a potting agent that enables the reduction of crawling and ensures sufficient penetration between the porous hollow fibers in stationary potting. The potting agent of the present invention is a potting agent for fixing an end portion of a porous hollow fiber group composed of a plurality of porous hollow fibers, and contains a resin material and a filler. The content of the filler is equal to or less than the content of the filler at a rising point of a variation curve of viscosity of the potting agent to filler content.
    Type: Application
    Filed: December 26, 2006
    Publication date: February 5, 2009
    Inventors: Yasuhiro Tada, Masayuki Hino, Yasushi Ebihara, Toshiya Mizuno
  • Patent number: 7468163
    Abstract: The invention relates to a mechanical support for a drainage device of a filter unit for microbiological testing of liquid substances. Said filter unit is provided with a membrane and adapted to be mounted on said mechanical support so that said membrane faces a reception surface of said mechanical support. The mechanical support comprises: a passage one end of which discharges externally of said reception surface and the other end of which discharges internally said reception surface; and selectively operable means for closing said passage, movable between a first position in which they close said passage and a second position in which they open said passage.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: December 23, 2008
    Assignee: Millipore Corporation
    Inventor: Christian Clauss
  • Patent number: 7413089
    Abstract: A replacement filter for conventional throw-away spin-on oil filter cartridge on an internal combustion engine. The replacement filter uses a porous metallic filter element, preferably a woven stainless steel, pleated filter element, within a housing physically simulating the conventional throw-away spin-on oil filter cartridge. The housing is disassembleable, typically by unscrewing the top cap of the housing, for removal, cleaning and reuse of the filter element. This avoids the problems of cost and availability of replacement filters and of disposal of used filters. Various embodiments are disclosed.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: August 19, 2008
    Assignee: Pure Power! Incorporated
    Inventor: Kelly Tidwell
  • Patent number: 7410575
    Abstract: A three-piece filter system comprises a base, a deep pocket filtering media, and a housing shell. The base is adapted to be fitted/threaded onto an engine block, with a sealing surface to provide a seal with the engine block. The filtering media and cap member is placed pleated-media end down into the housing shell. The filtering media self centers and the housing shell with the filtering media attached is attached to the base. The unitary filtering media and cap member are formed as a replaceable component that seats into the housing shell without a center tube or other outside support. When the housing shell is threaded onto the base, the cap member is sandwiched between a ledge on the shell and a seal on the base. The filter media itself is a solid block and has no center tube. The filter media is a solid pleated pocket design affixed to the cap member. In the preferred design, the filter element is square rather than round to increase surface area.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: August 12, 2008
    Assignee: Wix Filtration Corp LLC
    Inventors: Brian Scott Crawford, Michael David Adams
  • Patent number: 7389883
    Abstract: A filter cartridge which comprises a filter pack (3) formed by a flat filtering medium, a tubular sheath (2) with a perforated wall, surrounding the filtering pack, and two respective end caps (5) having a first disc (16) and a second disc (17) placed one on top of the other, each made from thermoplastic, with a portion of the filtering pack (3) situated along one of its edges and a portion of the sheath (2) situated along one of its edges (33) which are embedded in the second disc (17), with the first disc (16) having a peripheral rim (19) which surrounds the relevant portion of the sheath (2) and with the sheath having a shoulder (34) opposite the edge of the rim (19) of the first disc (16).
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: June 24, 2008
    Assignee: Millipore Corporation
    Inventors: Nolwenn Stephan, Sylvie Chavanne
  • Patent number: 7354513
    Abstract: An improved residential countertop water treatment unit for producing potable water suitable for human ingestion such as by drinking or cooking that comprises a vertical arrangement of a base, a cartridge, and a spigot at the top. The base includes an elongated threaded stub pipe extended downward for fastening the base to a sink surface or countertop and for receiving water from a potable cold water supply line. The base includes an internal valve for controlling water flow between the elongated threaded stub pipe and the inlet of the water filter cartridge. With the valve closed, the cartridge may be readily exchanged by simply unscrewing the spent cartridge from the base and then screwing in a new cartridge.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: April 8, 2008
    Inventors: Scott Nightlinger, Agnieszka Nightlinger, Piotr Loniewski, Grzegorz Loniewski
  • Patent number: 7297255
    Abstract: A mass transfer or energy transfer module is provided which includes a manifold, a cartridge and a bowl which houses the cartridge. The cartridge and bowl are connected to each other at least two flanges which fit into slots of the bowl to form a unitary construction.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: November 20, 2007
    Assignee: Entegris, Inc.
    Inventor: David Stockbower
  • Publication number: 20070163937
    Abstract: There is provided an oil strainer in which the filtration area is large, and which can go around an obstacle between pipes etc. to be connected. An oil strainer 1 includes a housing 2 in which an open portion 6 of a case body 3 is closed by a cover body 20, a filter element 30 disposed in the housing 2, an inflow portion 15, and an outflow portion 16. The housing 2 is formed so as to extend along one axis direction in a state of providing a bend portion in an intermediate portion in one axis direction X, and the inflow portion 15 and the outflow portion 16 are arranged at both ends in one axis direction X.
    Type: Application
    Filed: January 11, 2007
    Publication date: July 19, 2007
    Inventor: Taisuke Sato
  • Patent number: 7237682
    Abstract: A filter assembly comprising a housing with a threaded open end, a filter element, and a cover assembly. The filter element includes a media ring and a pair of end caps, one of which includes outwardly-projecting fingers. The cover assembly includes a cover member, and a sleeve with recesses in an outer surface. A collar member surrounds the sleeve and is freely rotationally supported by the cover member. The collar member includes i) a threaded portion on an outer surface for screwing the cover member onto the housing, and ii) recesses in an inner surface. The collar member is rotatable relative to the sleeve such that the recesses in the collar member and in the sleeve can be aligned, and the fingers can be inserted therebetween, to rotationally lock the collar member relative to the sleeve and to retain the element with the cover.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 3, 2007
    Assignee: Parker-Hannifin Corporation
    Inventors: Anita L. Reynolds, Donald J. Gembolis, Raymond G. Herr, Daniel W. Miller
  • Patent number: 7232522
    Abstract: In a Racor filter, an adaptor is provided to threadably mount a water collecting bowl to a can containing a filter element. In order to prevent the adaptor from rotating with respect to the can, the adaptor has an axially extending rim with a non-circular cross section that complements a non-circular opening through the bottom of the can. In a preferred embodiment, the non-circular opening has two chord segments disposed opposite from one another which engaged two chord segment flats on the threaded rim.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: June 19, 2007
    Assignee: Wix Filtration Corp.
    Inventors: Michael Edward Lasley, Peter Charles Campbell
  • Patent number: 7220291
    Abstract: A filter housing assembly having a gas-tight seal and a method of replacing a filter are generally provided. In one embodiment, the filter housing assembly includes a housing having an opening adapted to receive a filter and an inlet. A seal member is coupled to the housing and is moveable between a first position and at least a second position, the second position sealing the inlet. The filter housing assembly may be configured to retain a roomside replaceable filter or have a filter permanently adhered within the opening.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: May 22, 2007
    Assignee: Camfil Farr, Inc.
    Inventors: Thomas C. Morse, Mark Huza, Sean O'Reilly
  • Patent number: 7182864
    Abstract: A filter system in which a housing and an environmentally friendly filter cartridge are coordinated to provide ease of change of the filter cartridge and reliable operation. The cartridge contains no metal parts and is readily incinerateable. The housing is provided with a number of “universality” features including a changeable bottom which allows the housing to operate as a fuel filter, a lubrication filter, or a hydraulic filter in different applications. The housing and cartridge are configured to provide support for the plastic elements of the cartridge to prevent crushing of the filter under normal and abnormal filter operating conditions. A key system associated with the cartridge and the housing provides assurance that the correct filter is installed for a particular application.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: February 27, 2007
    Assignee: Baldwin Filters, Inc.
    Inventors: Gene W. Brown, Steven J. Merritt
  • Patent number: 7168573
    Abstract: A filter cartridge which is environmentally friendly in that it is made up of components which are all incinerateable. The ends of a filter element are sealed using potting compound and plastic endcaps. The upper endcap, which is closed, has a pressure relief aperture associated therewith to prevent bowing. In a plugged filter condition the high-downward pressure introduced on the upper endcap is compensated by providing the cartridge with centering ribs which bottom on an associated ledge in the housing to provide a positive stop for the top endcap, preventing it from being driven down into and through the filter element. Rubber gaskets are associated with the respective endcaps, and are reliably secured to the endcaps by being snap fit into grooves molded into the plastic of the endcaps. The lower endcap utilizes a simple radial seal gasket which is both highly effective and also positioned to avoid structural crushing forces on the cartridge. A keying system prevents the installation of improper filters.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: January 30, 2007
    Assignee: Baldwin Filters, Inc.
    Inventors: Gene W. Brown, Steven J. Merritt
  • Patent number: 7101418
    Abstract: The invention relates to a method and a device for degassing of suspension, specifically fiber stock suspension. The method according to the invention is characterized in that separated excess suspension is discharged sideways through an overflow having an overflow edge that is located in the tank outside wall and is positioned parallel to the tank axis. The device according to the invention is characterized in that the overflow includes at least one overflow having an overflow edge that is located in the tank outside wall and is positioned parallel to the tank axis and that at least one overflow system, for the purpose of discharging the separated excess suspension, is located following the overflow.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: September 5, 2006
    Assignee: Voith Paper Patent GmbH
    Inventor: Karl-Heinz Beuermann
  • Patent number: 7097681
    Abstract: An improved filtering bag combination having an increased area of filtering and a longer life of use. The improved structure includes a filtering member with multiple folds to cover a support formed of a plurality of rods. The rods of the support have a plurality of bracing members to support the filtering member, two ends of the support are mounted with two shaping pieces, and an upper and lower lid for fixing and sealing. The bracing members are all serrated members, and are provided on the outside with numerous equidistantly separated crests and corresponding hollows and on the inner side with a connecting base. The crests each have a clamping notch for placing a rod, so that the bracing members can be transversely arranged within a circle formed by encircling the rods of the support.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: August 29, 2006
    Assignee: Read Yes Enterprises Co., Ltd.
    Inventor: Ying-Shou Kao
  • Patent number: 7011754
    Abstract: A filtering device includes a container, a cover attached on top of the container having a space communicating with an inlet opening and a chamber of the container, and a filter screen received in the container for filtering the fluid from the inlet opening to the chamber of the container. The filter screen includes an upper peripheral flange having a peripheral wall or a peripheral flap for making an excellent seal between the container and the cover. The space of the cover includes a changing volume for decreasing the flowing speed of the fluid.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 14, 2006
    Inventor: I-Chung Chang
  • Patent number: 7001517
    Abstract: A filter element assembly has at least two cylindrically shaped and concentrically arranged filter media sleeves each connected at one end thereof to an inlet plate and each connected at the other end to a closed end terminal plate. Openings are provided in the inlet plate to permit entry of liquid to be filtered into the annular space between the filter sleeves. The closed end terminal plate prevents flow of unfiltered liquid from the annular space between the sleeves so as to force the liquid through the porous media of the sleeves to effect filtration.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: February 21, 2006
    Inventor: Moshe Gershenson
  • Patent number: 6991665
    Abstract: A filter wrap for a cylindrical filter has a sheet with an interior side facing the filter when the sheet is wrapped on the filter, and an exterior side. It also has an edge defining a main opening to the interior for receiving the filter. At least one strap is provided for the wrap with one end attached to the sheet. The strap has another accessible distal end. Pulling on the strap(s) everts the sheet as it is pulled off of the filter. This results in trapping debris residing on the exterior of the sheet within the sheet once it is everted during removal of the wrap from the filter. Installation and removal can be performed while the protected equipment remains in operation.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 31, 2006
    Assignee: Graver Technologies, Inc.
    Inventors: F. Burke Allen, Frank Sequino, Rick Wells, Gary Clements
  • Patent number: 6974537
    Abstract: The diesel purifier produces a fuel of high purity that meets the full ignition requirements at the combustion chamber of the engine. The purifier comprises a purification chamber encapsulated by an external body of the unit wherein, the purification chamber has a barrier with conical and cylindrical parts surrounded by a filter, such that fuel flows from the unit inlet through a pipe to the conical part, further wherein the upper part of the unit has a relief valve, the lower part has a heating element, and a water sensor connectable to sound and light indicators at a cabin dash board, and at the bottom there is a drain valve and filter, which is secured at the outlet of the unit. The above purification process depends on causing of some differences in the density of contaminants which contributes towards the settling of heavy impurities and the light contaminants are separated by a wire filter assembly.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: December 13, 2005
    Inventor: Ali Hasan Hamdan Abdelqader
  • Patent number: 6949188
    Abstract: A filter assembly including a filter housing defining an interior chamber with an open end, a filter disposed within the interior chamber, and a cover removably positioned over the open end to enclose the interior chamber. The filter housing defines an axially-facing sealing surface spaced from the open end. The filter includes a filter element and a flange element, with the flange element having a hook-shaped lip portion defining an axially-facing groove adapted to securely retain an O-ring seal therein. The cover includes an axially-extending sidewall portion and a laterally-extending flange portion, with the sidewall portion defining an outward taper adapted to retain an O-ring seal thereon. A clamp is used to bias the cover into sealing engagement with the open end of the filter housing. The cover in turn biases the flange element of the filter into sealing engagement with the axially-facing sealing surface of the filter housing.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: September 27, 2005
    Assignee: Geyer's Manufacturing & Design, Inc.
    Inventor: Frederick J. Geyer
  • Patent number: 6923908
    Abstract: A filter apparatus for use in liquid chromatography systems includes a housing component having an open channel formed therethrough for operably receiving fluid transfer tubing in at least a first end thereof, a relatively thin mesh filter component, and a securement component configured to matingly engage with the housing such that the filter component is operably disposed and secured between the housing and the securement component adjacent to and superimposed over a second open end of the channel. The filter apparatus is thus adapted to operably filter chromatographic fluids being drawn through the channels from the second open end and into the fluid transfer tubing.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: August 2, 2005
    Assignee: Systec, LLC
    Inventors: Jonathan Thompson, Yuri Gerner, Carl W. Sims
  • Patent number: 6911141
    Abstract: A lubricating oil filter has a housing which includes a first shell providing a housing base and a second shell providing a housing lid, wherein a filter media is suspended in a space defined by the shells by being clamped between a shoulder in the housing base and a rib projecting from the housing lid. The filter media may be either a flat filter media or a pleated pack filter media. In a preferred configuration, the housing is rectangular and has both an unfiltered oil inlet and a filtered oil outlet in the first shell forming the housing base so that the filter element may be changed without disconnecting the lubricating oil filter from inlet and outlet lines.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: June 28, 2005
    Assignee: Wix Filtration Corp.
    Inventors: Willie Luther Stamey, Jr., Gregory Keith Rhyne
  • Patent number: 6892892
    Abstract: A frustum filter used for separation of cation and anion exchange resins, which is used in condensate water polishing system or apparatus, wherein said frustum filter comprises a microporous filtering net body (1) which is formed by sintering a mixture of silicon carbide grains and a binder, said net body being provided with a plurality of micropores, the diameter of said micropores being in a range of 50-300 micron, said filtering net body (1) being shaped as an inverted truncated cone and its maximum diameter being in a range of 50-200 cm, the angle between a inner tapered face and a horizontal plane being in a range of 15°-30° and the thickness of said filtering net body being in a range of 2 cm-14 cm. Some reinforcing steel bars which have the property of high temperature resistance are embedded in said filtering net body(1) in advance. A steel ring (6) welded at the housing (2) is fixed on the external circumference of said filtering net body (1).
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: May 17, 2005
    Inventor: Hongxiao Wang