DE1924449C3 - Gas- und flüssigkeitsdurchlässiger Drahtgewirk-Verbundkörper von mehrschichtigem Aufbau und Verfahren zur Herstellung desselben - Google Patents

Gas- und flüssigkeitsdurchlässiger Drahtgewirk-Verbundkörper von mehrschichtigem Aufbau und Verfahren zur Herstellung desselben

Info

Publication number
DE1924449C3
DE1924449C3 DE1924449A DE1924449A DE1924449C3 DE 1924449 C3 DE1924449 C3 DE 1924449C3 DE 1924449 A DE1924449 A DE 1924449A DE 1924449 A DE1924449 A DE 1924449A DE 1924449 C3 DE1924449 C3 DE 1924449C3
Authority
DE
Germany
Prior art keywords
composite body
layers
wire mesh
wires
body according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1924449A
Other languages
German (de)
English (en)
Other versions
DE1924449B2 (de
DE1924449A1 (de
Inventor
David Boris New York N.Y. Pall (V.St.A.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pall Corp
Original Assignee
Pall Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pall Corp filed Critical Pall Corp
Publication of DE1924449A1 publication Critical patent/DE1924449A1/de
Publication of DE1924449B2 publication Critical patent/DE1924449B2/de
Application granted granted Critical
Publication of DE1924449C3 publication Critical patent/DE1924449C3/de
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663Multi-layer screening surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/10Filter screens essentially made of metal
    • B01D39/12Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4672Woven meshes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02Energy absorbers; Noise absorbers
    • F16L55/033Noise absorbers
    • F16L55/0336Noise absorbers by means of sound-absorbing materials
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/496Multiperforated metal article making
    • Y10T29/49604Filter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12424Mass of only fibers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
DE1924449A 1968-05-27 1969-05-13 Gas- und flüssigkeitsdurchlässiger Drahtgewirk-Verbundkörper von mehrschichtigem Aufbau und Verfahren zur Herstellung desselben Expired DE1924449C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73244368A 1968-05-27 1968-05-27

Publications (3)

Publication Number Publication Date
DE1924449A1 DE1924449A1 (de) 1970-01-08
DE1924449B2 DE1924449B2 (de) 1975-04-17
DE1924449C3 true DE1924449C3 (de) 1975-12-04

Family

ID=24943525

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1924449A Expired DE1924449C3 (de) 1968-05-27 1969-05-13 Gas- und flüssigkeitsdurchlässiger Drahtgewirk-Verbundkörper von mehrschichtigem Aufbau und Verfahren zur Herstellung desselben

Country Status (5)

Country Link
US (1) US3690606A (enExample)
CA (1) CA939276A (enExample)
DE (1) DE1924449C3 (enExample)
FR (1) FR2011870B1 (enExample)
GB (1) GB1268446A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054816A1 (de) * 2005-11-15 2007-05-16 Haver & Boecker Ohg Poröser Körper

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1536824C3 (de) * 1967-05-05 1975-08-07 Waldemar Hoening Ohg, 4401 Sendenhorst Verfahren zum Herstellen mehrlagiger Filterscheiben aus Drahtgeweben, Lochblechen o.dgl
US3960239A (en) * 1973-08-15 1976-06-01 Barry Wright Corporation Noise-reducing fluid-flow devices
US3920095A (en) * 1974-02-01 1975-11-18 Brunswick Corp Free flow sound attenuating device and method of using
US3964902A (en) * 1974-02-27 1976-06-22 The United States Of America As Represented By The United States National Aeronautics And Space Administration Method of forming a wick for a heat pipe
US3966522A (en) * 1974-05-23 1976-06-29 Hitco Method of making woven acoustical panel
US4010004A (en) * 1974-06-26 1977-03-01 Brunswick Corporation Velvet fabric
US4379191A (en) * 1975-08-13 1983-04-05 Rohr Industries, Inc. Honeycomb noise attenuation structure
US4254171A (en) * 1975-08-13 1981-03-03 Rohr Industries, Inc. Method of manufacture of honeycomb noise attenuation structure and the resulting structure produced thereby
US3999699A (en) * 1975-12-08 1976-12-28 John Chisholm Method of making high thermal conductivity porous metal
DE2653262C2 (de) * 1976-11-24 1984-01-19 Werner Dr.-Ing. 3422 Bad Lauterberg Piening Vorrichtung zum geräuscharmen Entspannen eines gasförmigen Mediums mit Hilfe von Drosselstrecken
US4158449A (en) * 1976-12-07 1979-06-19 Pall Corporation Inlet air cleaner assembly for turbine engines
US4114794A (en) * 1977-01-10 1978-09-19 Brunswick Corporation Method of autogenously bonding filter assemblies
DE2720278C2 (de) * 1977-05-05 1985-03-21 Nippon Seisen Co., Ltd., Hirakata, Osaka Verfahren zur Herstellung eines verstärkten Metallfilters
US4122015A (en) * 1977-06-06 1978-10-24 Nippon Seisen Co., Ltd. Fortified metal filter and its preparative procedure
US4930651A (en) * 1978-03-20 1990-06-05 Explosafe North America Inc. Storage vessel for liquefied gas at ambient temperature
DE2926533C2 (de) * 1979-06-30 1982-11-25 Haver & Boecker, 4740 Oelde Verfahren zum Herstellen einer porösen Filterschicht
US4539244A (en) * 1979-08-06 1985-09-03 Rohr Industries, Inc. Honeycomb noise attenuation structure
US4522859A (en) * 1979-10-29 1985-06-11 Rohr Industries, Inc. Method of manufacture of honeycomb noise attenuation structure for high temperature applications
US4421811A (en) * 1979-12-21 1983-12-20 Rohr Industries, Inc. Method of manufacturing double layer attenuation panel with two layers of linear type material
US4384020A (en) * 1980-12-22 1983-05-17 Rohr Industries, Inc. Honeycomb noise attenuating structures
SE457154B (sv) * 1986-12-01 1988-12-05 Pio Ab Saett att tillverka ett metallelement samt dylikt metallelement
FR2612280B1 (fr) * 1987-03-13 1989-06-30 France Etat Armement Revetement destine a la protection thermique d'une structure soumise a des conditions d'agressions thermiques intenses
US5151311A (en) * 1987-11-02 1992-09-29 Grumman Aerospace Corporation Acoustic attenuating liner and method of making same
US5180619A (en) * 1989-12-04 1993-01-19 Supracor Systems, Inc. Perforated honeycomb
US5221107A (en) * 1990-12-18 1993-06-22 Trw Inc. Prefilter assembly
EP0592698B1 (de) * 1991-04-15 1995-12-20 Klaus Jörgens Ultrafiltrationsseparator
DE4208100C2 (de) * 1992-03-13 1994-05-26 Mtu Muenchen Gmbh Rohling zur Herstellung von faserverstärkten Beschichtungen oder Metallbauteilen
US5353949A (en) * 1992-09-21 1994-10-11 Pall Corporation Vent filter assembly
JP3265737B2 (ja) * 1993-08-20 2002-03-18 住友電気工業株式会社 高耐食性金属フィルタ
DE4424347C2 (de) * 1993-09-17 1995-11-02 Inventa Ag Flachfilter sowie Filterstützelement hierfür
DE9405025U1 (de) * 1994-03-24 1994-05-19 Haver & Boecker, 59302 Oelde Aus mehreren übereinandergeschichteten Drahtgewebelagen bestehender Filterblock
US5809770A (en) * 1995-07-31 1998-09-22 Donaldson Company, Inc. Silencer for a gas flow
US5849054A (en) * 1995-10-31 1998-12-15 Nippon Reinz Co., Ltd. Filter for an inflator
FR2751559B1 (fr) * 1996-07-25 1998-09-04 Sprint Metal Sa Filtre pour la retention de particules solides contenues dans les gaz d'echappement d'un moteur diesel et tampon de filtration
US5814118A (en) * 1996-11-18 1998-09-29 Nuclear Filter Technology, Inc. HEPA filter for venting chambers
EP0989289A1 (en) * 1998-09-25 2000-03-29 FLEXIDER S.p.A. Flexible vibration-decoupling joint, in particular for exhaust pipes in motor vehicles
JP4216412B2 (ja) * 1999-07-23 2009-01-28 ジャパンマテックス株式会社 パッキン材料およびそれを用いたパッキン
US20010045411A1 (en) * 2000-01-20 2001-11-29 Bailey Edwin C. High tensile strength stainless steel screen and method of making thereof
US6863950B1 (en) * 2000-02-11 2005-03-08 Frank W. Cunningham Puncture proof material with capture devices
AU2002308126A1 (en) * 2001-04-11 2002-10-28 N.V. Bekaert S.A. A filtration apparatus
CN1258388C (zh) * 2001-04-11 2006-06-07 贝克特股份有限公司 金属纤维过滤器元件
US6598352B2 (en) 2001-08-07 2003-07-29 Edward A. Higginbotham Self cleaning gutter shield
EP1317950A1 (en) * 2001-12-07 2003-06-11 N.V. Bekaert S.A. Filter medium for diesel soot filtration
US20030173075A1 (en) * 2002-03-15 2003-09-18 Dave Morvant Knitted wire fines discriminator
US20040009108A1 (en) * 2002-07-09 2004-01-15 Meier Paul F. Enhanced fluid/solids contacting in a fluidization reactor
US6951077B1 (en) * 2002-08-08 2005-10-04 Edward Alan Higginbotham Non clogging screen
DE10239241A1 (de) * 2002-08-27 2004-03-11 Sartorius Ag Filterelement, insbesondere zur statischen bzw. dead-end-Filtration von Fluiden, sowie Filtervorrichtung
DE20217296U1 (de) * 2002-11-09 2004-03-18 Haver & Boecker Drahtgewebe
US7220271B2 (en) * 2003-01-30 2007-05-22 Ev3 Inc. Embolic filters having multiple layers and controlled pore size
US7323001B2 (en) * 2003-01-30 2008-01-29 Ev3 Inc. Embolic filters with controlled pore size
JP4188108B2 (ja) * 2003-03-10 2008-11-26 本田技研工業株式会社 内燃機関の排気消音器
AU2003304517A1 (en) * 2003-05-23 2005-05-11 N.V. Bekaert S.A. Diesel soot particulate filter medium
USD550804S1 (en) * 2003-10-27 2007-09-11 Jones Robert W Gutter foam filter
JP4994574B2 (ja) * 2004-01-07 2012-08-08 株式会社ダイセル ガス発生器用フィルタ
US7913458B2 (en) * 2004-05-21 2011-03-29 Edward Alan Higginbotham Self cleaning gutter shield
US7435280B2 (en) * 2004-08-17 2008-10-14 Acs Industries, Inc. Wire mesh filter with improved hoop strength
US20070084782A1 (en) * 2005-10-05 2007-04-19 Enercon Services, Inc. Filter medium for strainers used in nuclear reactor emergency core cooling systems
DE102005052204A1 (de) * 2005-11-02 2007-06-06 Witzenmann Gmbh Flexibles Leitungselement
DE102006024383A1 (de) * 2006-05-24 2007-11-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Erhöhung der individuellen Behaglichkeit in einem Flugzeug
US20070277490A1 (en) * 2006-06-05 2007-12-06 Acs Industries, Lp Low density mist collector pad
WO2008000049A2 (en) * 2006-06-30 2008-01-03 Nv Bekaert Sa A sintered metal fiber medium and a method to provide a sintered metal fiber medium
DE102008017528A1 (de) * 2008-04-03 2009-10-08 Poroson Gmbh Vorrichtung zur Schalldämpfung bei einer Luft-Wärmepumpe
GB2491760B (en) * 2008-10-03 2013-07-10 George Lindsay Heeley Apparatus for enriching air for an engine
WO2010062828A1 (en) * 2008-11-28 2010-06-03 Acs Industries, Inc. Wire mesh rivet
KR20170096222A (ko) 2010-06-29 2017-08-23 에이치2세이프 엘엘씨 유체 컨테이너
US8393437B2 (en) * 2011-02-15 2013-03-12 Westinghouse Electric Company Llc Noise and vibration mitigation system for nuclear reactors employing an acoustic side branch resonator
JP2015508493A (ja) * 2011-12-22 2015-03-19 ディーエスエム アイピー アセッツ ビー.ブイ. 多層織物製品および乾燥マトリックススポット用途用担体としての多層織物製品の使用
TWI531403B (zh) * 2013-03-01 2016-05-01 格瑞福科技有限責任公司 發電用下水道過濾器、液體處理過濾容器及其使用方法
US9598957B2 (en) 2013-07-19 2017-03-21 Baker Hughes Incorporated Switchable magnetic particle filter
CN103357881A (zh) * 2013-07-22 2013-10-23 王东伟 一种多层金属网与金属粉末复合过滤管、滤芯的生产方法
DE102014110339A1 (de) * 2014-07-22 2016-01-28 Haver & Boecker Ohg Lagenverbund von flächigen porösen Lagen
US9968984B2 (en) * 2014-08-12 2018-05-15 Fuji Filter Manufacturing Co., Ltd. Porous metal body manufacturing method and porous metal body
WO2016064461A1 (en) 2014-10-24 2016-04-28 H2Safe, Llc Fail-safe containment device for containing volatile fluids
JP6472745B2 (ja) * 2015-12-25 2019-02-20 株式会社神戸製鋼所 ガスクーラ
DE102016200320A1 (de) * 2016-01-13 2017-07-13 BSH Hausgeräte GmbH Filtereinheit für Dunstabzugshaube
GB201619517D0 (en) * 2016-11-18 2017-01-04 Cooper Technologies Co Electroacoustic driver housing element
US12116913B2 (en) 2018-09-13 2024-10-15 The University Of Adelaide Exhaust gas assembly
JP6956978B2 (ja) * 2019-06-21 2021-11-02 アサダメッシュ株式会社 コアレッサ及び油水分離装置
CN111911924B (zh) * 2020-07-29 2021-12-24 西安菲尔特金属过滤材料股份有限公司 一种平板式铁铬铝纤维燃烧头的制备方法
DE102021118381A1 (de) * 2021-07-15 2023-01-19 KSB SE & Co. KGaA Flexible Struktur
EP4142448A1 (en) 2021-08-26 2023-03-01 Rohde & Schwarz GmbH & Co. KG Nonuniform air grid
CN113680653B (zh) * 2021-10-26 2022-01-04 新沂市锡沂高新材料产业技术研究院有限公司 一种便于调节的石英砂分离系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1676191A (en) * 1924-08-20 1928-07-03 Jordahl Anders Filter medium for air filters
US2274684A (en) * 1940-11-16 1942-03-03 Metal Textile Corp Filter medium and filter body made therefrom
US2327184A (en) * 1941-07-01 1943-08-17 Metal Textile Corp Filter body
US2829733A (en) * 1953-08-18 1958-04-08 Res Prod Corp Interstitial body suitable for use as a filter
US3061912A (en) * 1957-04-04 1962-11-06 Curtiss Wright Corp Fabrication of porous sheet material by brazing
US3049796A (en) * 1957-07-12 1962-08-21 Pall Corp Perforate metal sheets
US3017698A (en) * 1958-03-25 1962-01-23 Res Prod Corp Air filter with integral frame
GB926911A (en) * 1958-07-08 1963-05-22 Sintered Products Ltd Improvements in or relating to porous metallic material
US3241681A (en) * 1959-02-09 1966-03-22 Pall Corp Filter elements
US2929464A (en) * 1959-05-18 1960-03-22 Vernco Corp Flat knit filter media
US3327866A (en) * 1964-06-15 1967-06-27 Pall Corp Woven wire mesh
US3437457A (en) * 1965-04-13 1969-04-08 Huyck Corp Reinforced metal fiber composites
US3504422A (en) * 1968-01-19 1970-04-07 Bell Aerospace Corp Method of making a depth-type filter media

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054816A1 (de) * 2005-11-15 2007-05-16 Haver & Boecker Ohg Poröser Körper

Also Published As

Publication number Publication date
FR2011870A1 (enExample) 1970-03-13
DE1924449B2 (de) 1975-04-17
FR2011870B1 (enExample) 1973-10-19
US3690606A (en) 1972-09-12
DE1924449A1 (de) 1970-01-08
GB1268446A (en) 1972-03-29
CA939276A (en) 1974-01-01

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee