WO2002020130A3 - Filter structure with two or more layers of fine fiber having extended useful service life - Google Patents

Filter structure with two or more layers of fine fiber having extended useful service life Download PDF

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Publication number
WO2002020130A3
WO2002020130A3 PCT/US2001/026045 US0126045W WO0220130A3 WO 2002020130 A3 WO2002020130 A3 WO 2002020130A3 US 0126045 W US0126045 W US 0126045W WO 0220130 A3 WO0220130 A3 WO 0220130A3
Authority
WO
WIPO (PCT)
Prior art keywords
fine fiber
fiber
layers
service life
media
Prior art date
Application number
PCT/US2001/026045
Other languages
French (fr)
Other versions
WO2002020130B1 (en
WO2002020130A2 (en
Inventor
James D Benson
Douglas G Crofoot
Mark A Gogins
Thomas M Weik
Original Assignee
Donaldson Co Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26923960&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002020130(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to JP2002524604A priority Critical patent/JP5021142B2/en
Priority to MXPA03001929A priority patent/MXPA03001929A/en
Priority to CNB018177174A priority patent/CN1318121C/en
Priority to DE60111554T priority patent/DE60111554T2/en
Priority to AU2001288333A priority patent/AU2001288333B2/en
Priority to AT01968055T priority patent/ATE297798T1/en
Priority to CA002419849A priority patent/CA2419849C/en
Application filed by Donaldson Co Inc filed Critical Donaldson Co Inc
Priority to IL15457001A priority patent/IL154570A0/en
Priority to KR1020037003222A priority patent/KR100820748B1/en
Priority to EP01968055A priority patent/EP1326697B1/en
Priority to BR0113656-9A priority patent/BR0113656A/en
Publication of WO2002020130A2 publication Critical patent/WO2002020130A2/en
Publication of WO2002020130A3 publication Critical patent/WO2002020130A3/en
Priority to IL154570A priority patent/IL154570A/en
Publication of WO2002020130B1 publication Critical patent/WO2002020130B1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411Filter cartridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/546Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using nano- or microfibres
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2275/00Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10Multiple layers

Abstract

The use of fine fiber of fiber having a fiber diameter of about 0.0001 to 0.5 microns has become an important design tool for filter media. Common filter media have been prepared with a layer of fine fiber on typically formed the upstream or intake side of the media structure. The fine fiber increases the efficiency of filtration by trapping small particles which increases the overall particulate filtration efficiency of the structure. Improved fine fiber structures have been developed in which a controlled amount of fine fiber is placed on both sides of the media to result in an improvement in filter efficiency but a substantial improvement in lifetime.
PCT/US2001/026045 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life WO2002020130A2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BR0113656-9A BR0113656A (en) 2000-09-05 2001-08-21 Filter structure with two or more long fiber thin layers
CA002419849A CA2419849C (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
CNB018177174A CN1318121C (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
DE60111554T DE60111554T2 (en) 2000-09-05 2001-08-21 FILTER STRUCTURE WITH TWO OR MORE FINE FIBER LAYERS WITH EXTENDED SERVICE TIME
IL15457001A IL154570A0 (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
AT01968055T ATE297798T1 (en) 2000-09-05 2001-08-21 FILTER STRUCTURE WITH TWO OR MORE FINE FIBER LAYERS WITH EXTENDED USAGE LIFE
MXPA03001929A MXPA03001929A (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life.
JP2002524604A JP5021142B2 (en) 2000-09-05 2001-08-21 Long-life filter structure with two or more layers of fine fiber
AU2001288333A AU2001288333B2 (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
KR1020037003222A KR100820748B1 (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
EP01968055A EP1326697B1 (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life
IL154570A IL154570A (en) 2000-09-05 2003-02-20 Filter structure with two or more layers of fine fiber having extended useful service life

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23013800P 2000-09-05 2000-09-05
US60/230,138 2000-09-05
US09/871,156 2001-05-31
US09/871,156 US6746517B2 (en) 2000-09-05 2001-05-31 Filter structure with two or more layers of fine fiber having extended useful service life

Publications (3)

Publication Number Publication Date
WO2002020130A2 WO2002020130A2 (en) 2002-03-14
WO2002020130A3 true WO2002020130A3 (en) 2002-11-28
WO2002020130B1 WO2002020130B1 (en) 2003-06-12

Family

ID=26923960

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/026045 WO2002020130A2 (en) 2000-09-05 2001-08-21 Filter structure with two or more layers of fine fiber having extended useful service life

Country Status (14)

Country Link
US (1) US6746517B2 (en)
EP (1) EP1326697B1 (en)
JP (1) JP5021142B2 (en)
KR (1) KR100820748B1 (en)
CN (1) CN1318121C (en)
AT (1) ATE297798T1 (en)
AU (1) AU2001288333B2 (en)
BR (1) BR0113656A (en)
CA (1) CA2419849C (en)
DE (1) DE60111554T2 (en)
IL (2) IL154570A0 (en)
MX (1) MXPA03001929A (en)
RU (1) RU2280491C2 (en)
WO (1) WO2002020130A2 (en)

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