KR970009309B1 - High temperature filter felt - Google Patents
High temperature filter felt Download PDFInfo
- Publication number
- KR970009309B1 KR970009309B1 KR89012856A KR890012856A KR970009309B1 KR 970009309 B1 KR970009309 B1 KR 970009309B1 KR 89012856 A KR89012856 A KR 89012856A KR 890012856 A KR890012856 A KR 890012856A KR 970009309 B1 KR970009309 B1 KR 970009309B1
- Authority
- KR
- South Korea
- Prior art keywords
- high temperature
- scrim
- temperature filter
- machine
- filter felt
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/086—Filter cloth, i.e. woven, knitted or interlaced material of inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
- D04H1/4342—Aromatic polyamides
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
- D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1225—Fibre length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/50—FELT FABRIC
- Y10T442/59—At least three layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
- Woven Fabrics (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270,783 | 1988-09-08 | ||
US07/270,783 US4840838A (en) | 1988-09-08 | 1988-09-08 | High temperature filter felt |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900004379A KR900004379A (ko) | 1990-04-12 |
KR970009309B1 true KR970009309B1 (en) | 1997-06-10 |
Family
ID=23032792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR89012856A KR970009309B1 (en) | 1988-09-08 | 1989-09-06 | High temperature filter felt |
Country Status (8)
Country | Link |
---|---|
US (1) | US4840838A (ko) |
EP (1) | EP0358222B1 (ko) |
JP (1) | JP2979060B2 (ko) |
KR (1) | KR970009309B1 (ko) |
AT (1) | ATE86877T1 (ko) |
CA (1) | CA1325388C (ko) |
DE (1) | DE68905411T2 (ko) |
ES (1) | ES2040954T3 (ko) |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622604B1 (fr) * | 1987-11-03 | 1990-01-19 | Chomarat & Cie | Complexe textile multicouches a base de nappes fibreuses ayant des caracteristiques differentes |
US5028465A (en) * | 1989-03-20 | 1991-07-02 | James River Corporation | Hydroentangled composite filter element |
US4983434A (en) * | 1989-04-07 | 1991-01-08 | W. L. Gore & Associates, Inc. | Filter laminates |
JPH0796089B2 (ja) * | 1989-07-28 | 1995-10-18 | 市川毛織株式会社 | バグフィルター用▲ろ▼過布 |
CA1278533C (en) * | 1989-08-22 | 1991-01-02 | E. Lee Noddin | Polyimide composite filter fabrics |
US5015420A (en) * | 1989-12-26 | 1991-05-14 | Jones Tom F | Evaporative cooling |
CA2037232C (en) * | 1990-03-12 | 2002-01-29 | Gary L. Hendren | High strength papers from floc and fibrids |
JP2594844B2 (ja) * | 1991-03-05 | 1997-03-26 | 日本フエルト工業株式会社 | 耐熱性ニードルフェルトフィルター材 |
US5181945A (en) * | 1991-06-10 | 1993-01-26 | Continental Conveyor & Equipment Co. | High-temperature fabric filter media |
US5482773A (en) * | 1991-07-01 | 1996-01-09 | E. I. Du Pont De Nemours And Company | Activated carbon-containing fibrids |
IL102338A (en) * | 1991-07-01 | 1996-11-14 | Du Pont | Polymeric fibers containing activated carbon |
US5171339A (en) * | 1991-11-07 | 1992-12-15 | E. I. Du Pont De Nemours And Company | Filter bag for hot gases |
GB9125889D0 (en) * | 1991-12-05 | 1992-02-05 | Albany Research Uk | Improvements in and relating to paper machine clothing |
EP0562458A1 (de) * | 1992-03-25 | 1993-09-29 | Akzo Nobel N.V. | Technische Gewebe mit hoher Temperaturbeständigkeit |
US5383573A (en) * | 1992-11-04 | 1995-01-24 | Minnesota Mining And Manufacturing Company | Separation-science membrane dispenser |
CA2087353A1 (en) * | 1993-01-15 | 1994-07-16 | Hironori Misawa | Conveying belt |
DE69312094T2 (de) * | 1993-03-16 | 1997-10-30 | W.L. Gore & Associates, Inc., Newark, Del. | Zusammengesetzte faser aus vermischten glasfasern und polytetrafluoroethylen und verfahren zu ihrer herstellung |
US5336286A (en) * | 1993-04-26 | 1994-08-09 | Hoechst Celanese Corporation | High efficiency air filtration media |
DE4314734A1 (de) * | 1993-05-04 | 1994-11-10 | Hoechst Ag | Filtermaterial und Verfahren zur Entfernung von Ozon aus Gasen und Flüssigkeiten |
US5429864A (en) * | 1993-10-06 | 1995-07-04 | E. I. Du Pont De Nemours And Company | High efficiency filter fabric for hot gas filtration |
BR9400435A (pt) * | 1994-02-04 | 1995-10-17 | Manegro Comercio Ltda | Fita composta para fabricação de gaxetas trançadas gaxeta trançada e processo de formação da referida fita composta |
JP3375738B2 (ja) * | 1994-06-30 | 2003-02-10 | シスメックス株式会社 | 加圧空気供給装置 |
WO1996001734A1 (en) * | 1994-07-11 | 1996-01-25 | Foss Manufacturing Co., Inc. | Recyclable thermoformed structural panel made of single polymer type in adhered multi-layers of non-woven fabric |
DE19522763A1 (de) * | 1995-06-27 | 1997-01-02 | Fleissner Maschf Gmbh Co | Verfahren und Vorrichtung zur Verfestigung eines Faservlieses |
US5904978A (en) * | 1995-12-15 | 1999-05-18 | W. L. Gore & Associates, Inc. | Electrically conductive polytetrafluoroethylene article |
EP0786823A1 (en) * | 1996-01-22 | 1997-07-30 | W.L. GORE & ASSOCIATES, INC. | Non-woven electro-magnetically transparent material |
DE19615022A1 (de) * | 1996-04-17 | 1997-10-23 | Mgf Gutsche & Co Gmbh Betriebs | Filtermedium |
US6211100B1 (en) * | 1996-04-30 | 2001-04-03 | Minnesota Mining And Manufacturing Company | Synthetic filter media |
US6008146A (en) * | 1997-09-02 | 1999-12-28 | Gore Enterprise Holdings, Inc. | Filter material and cartridge filters made therefrom |
US5945217A (en) * | 1997-10-14 | 1999-08-31 | Gore Enterprise Holdings, Inc. | Thermally conductive polytrafluoroethylene article |
US5989709A (en) * | 1998-04-30 | 1999-11-23 | Gore Enterprises Holdings, Inc. | Polytetrafluoroethylene fiber |
DE19820560A1 (de) * | 1998-05-08 | 1999-11-11 | Mgf Gutsche & Co Gmbh Betriebs | Filtermedium |
EP1116510A4 (en) * | 1998-06-08 | 2001-08-22 | Daikin Ind Ltd | FILTER MEDIUM FOR DUST SEPARATION FROM HIGH TEMPERATURE COMBUSTION UNITS |
DE19930664A1 (de) | 1999-07-02 | 2001-01-11 | Basf Coatings Ag | Klarlack und seine Verwendung zur Herstellung von Klarlackierungen und farb- und/oder effektgebenden Mehrschichtlackierungen |
DE19930665A1 (de) | 1999-07-02 | 2001-01-11 | Basf Coatings Ag | Basislack und seine Verwendung zur Herstellung von farb- und/oder effektgebenden Basislackierungen und Mehrschichtlackierung |
US6383623B1 (en) | 1999-08-06 | 2002-05-07 | Tex Tech Industries Inc. | High performance insulations |
US6387144B1 (en) * | 2000-03-16 | 2002-05-14 | Nelson Industries, Inc. | Enhanced performance fibrous filter media and extended life fluid filter assembly |
US20050106970A1 (en) * | 2000-09-01 | 2005-05-19 | Stanitis Gary E. | Melt processable perfluoropolymer forms |
US6734122B1 (en) | 2001-11-16 | 2004-05-11 | Bgf Industries, Inc. | Fabric for high-temperature gaseous filtration applications |
US20030192294A1 (en) * | 2002-04-16 | 2003-10-16 | Alan Smithies | Filter medium |
US20040117958A1 (en) * | 2002-12-19 | 2004-06-24 | Abraham Turkson | High temperature needle-felts with woven basalt scrims |
AU2004226533B2 (en) * | 2003-03-31 | 2009-01-29 | Toray Industries, Inc. | Filter medium |
US8246882B2 (en) * | 2003-05-02 | 2012-08-21 | The Boeing Company | Methods and preforms for forming composite members with interlayers formed of nonwoven, continuous materials |
US7229937B2 (en) * | 2004-03-23 | 2007-06-12 | E. I. Du Pont De Nemours And Company | Reinforced nonwoven fire blocking fabric, method for making such fabric, and articles fire blocked therewith |
US7043943B2 (en) * | 2004-06-12 | 2006-05-16 | Monterey Mills | High heat filter fabric and method |
US7344035B1 (en) | 2004-06-12 | 2008-03-18 | Siny Corp. | High heat filter fabric and method |
US8021457B2 (en) | 2004-11-05 | 2011-09-20 | Donaldson Company, Inc. | Filter media and structure |
US8057567B2 (en) | 2004-11-05 | 2011-11-15 | Donaldson Company, Inc. | Filter medium and breather filter structure |
CN101934172B (zh) | 2004-11-05 | 2016-06-08 | 唐纳森公司 | 过滤介质和结构 |
US7247585B2 (en) * | 2004-11-23 | 2007-07-24 | E.I. Du Pont De Nemours And Company | Reinforced nonwoven fire blocking fabric having ridges and grooves and articles fire blocked therewith |
US7226877B2 (en) * | 2004-12-27 | 2007-06-05 | E. I. Du Pont De Nemours And Company | Liquid water impermeable reinforced nonwoven fire blocking fabric, method for making such fabric, and articles fire blocked therewith |
EP1846136A2 (en) | 2005-02-04 | 2007-10-24 | Donaldson Company, Inc. | Aerosol separator |
WO2006091594A1 (en) | 2005-02-22 | 2006-08-31 | Donaldson Company, Inc. | Aerosol separator |
WO2007066826A1 (ja) * | 2005-12-09 | 2007-06-14 | Sumitomo Chemical Company, Limited | 油水分離フィルター及び油水分離装置 |
US20070173159A1 (en) * | 2006-01-24 | 2007-07-26 | Kishio Miwa | Blend of polytetrafluoroethylene, glass and polyphenylene sulfide fibers and filter felt made from same |
US7456120B2 (en) * | 2006-09-13 | 2008-11-25 | E. I. Du Pont De Nemours And Company | Bag filter comprising meta-aramid and acrylic fiber |
US20080166938A1 (en) * | 2007-01-09 | 2008-07-10 | Teadit Industria E Comercio Ltda. | Microfiber split film filter felt and method of making same |
EP2117674A1 (en) | 2007-02-22 | 2009-11-18 | Donaldson Company, Inc. | Filter element and method |
EP2125149A2 (en) | 2007-02-23 | 2009-12-02 | Donaldson Company, Inc. | Formed filter element |
US8267681B2 (en) | 2009-01-28 | 2012-09-18 | Donaldson Company, Inc. | Method and apparatus for forming a fibrous media |
DE102009036866A1 (de) * | 2009-08-10 | 2011-02-24 | A. Kayser Gmbh & Co. Kg Textile Filtermedien | Hybridnadelfilz |
US8282713B2 (en) | 2009-12-16 | 2012-10-09 | Bha Group, Inc. | PTFE pleated filter element |
US8333826B2 (en) * | 2010-02-10 | 2012-12-18 | Bha Group, Inc. | Pleatable PTFE filter media with ePTFE membrane |
US20120304603A1 (en) * | 2010-12-08 | 2012-12-06 | E. I. Du Pont De Nemours And Company | Low elongation structures for hot gas filtration |
DE202011005129U1 (de) | 2011-04-11 | 2011-06-09 | Niederrheinische Leinenweberei Carl Billmann GmbH & Co. KG, 41844 | Nadelfilz |
CN111389095A (zh) * | 2020-04-06 | 2020-07-10 | 台州市皓天产业用布股份有限公司 | 高硅氧聚四氟乙烯覆膜滤布 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4070519A (en) * | 1976-04-27 | 1978-01-24 | Huyck Corporation | High temperature filter fabrics |
IT1095354B (it) * | 1977-02-17 | 1985-08-10 | Exxon Research Engineering Co | Processo per la separazione di cere |
US4324574A (en) * | 1980-12-19 | 1982-04-13 | E. I. Du Pont De Nemours And Company | Felt-like layered composite of PTFE and glass paper |
US4361619A (en) * | 1981-05-20 | 1982-11-30 | E. I. Du Pont De Nemours And Company | Filter of poly(tetrafluoroethylene) and glass fibers |
US4357386A (en) * | 1981-11-16 | 1982-11-02 | Albany International Corp. | Papermakers felt and method of manufacture |
CA1223764A (en) * | 1983-10-19 | 1987-07-07 | August Murka, Jr. | Papermaker's felt |
US4612237A (en) * | 1985-12-13 | 1986-09-16 | E. I. Du Pont De Nemours And Company | Hydraulically entangled PTFE/glass filter felt |
-
1988
- 1988-09-08 US US07/270,783 patent/US4840838A/en not_active Expired - Lifetime
-
1989
- 1989-09-01 CA CA000610107A patent/CA1325388C/en not_active Expired - Lifetime
- 1989-09-06 KR KR89012856A patent/KR970009309B1/ko not_active IP Right Cessation
- 1989-09-08 DE DE8989116636T patent/DE68905411T2/de not_active Expired - Lifetime
- 1989-09-08 EP EP89116636A patent/EP0358222B1/en not_active Expired - Lifetime
- 1989-09-08 JP JP1231830A patent/JP2979060B2/ja not_active Expired - Lifetime
- 1989-09-08 ES ES198989116636T patent/ES2040954T3/es not_active Expired - Lifetime
- 1989-09-08 AT AT89116636T patent/ATE86877T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1325388C (en) | 1993-12-21 |
DE68905411T2 (de) | 1993-08-26 |
US4840838A (en) | 1989-06-20 |
ATE86877T1 (de) | 1993-04-15 |
JP2979060B2 (ja) | 1999-11-15 |
ES2040954T3 (es) | 1993-11-01 |
EP0358222B1 (en) | 1993-03-17 |
DE68905411D1 (de) | 1993-04-22 |
KR900004379A (ko) | 1990-04-12 |
JPH02135106A (ja) | 1990-05-24 |
EP0358222A2 (en) | 1990-03-14 |
EP0358222A3 (en) | 1991-08-21 |
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