FI65170C - Foerfarande foer framstaellning av ett soemloest roerformigt filterelement och ett soemloest roerformigt filterelement - Google Patents
Foerfarande foer framstaellning av ett soemloest roerformigt filterelement och ett soemloest roerformigt filterelement Download PDFInfo
- Publication number
- FI65170C FI65170C FI770092A FI770092A FI65170C FI 65170 C FI65170 C FI 65170C FI 770092 A FI770092 A FI 770092A FI 770092 A FI770092 A FI 770092A FI 65170 C FI65170 C FI 65170C
- Authority
- FI
- Finland
- Prior art keywords
- core
- filter
- fibers
- filter layer
- end caps
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 38
- 238000009987 spinning Methods 0.000 claims description 32
- 229920001169 thermoplastic Polymers 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 5
- 238000002074 melt spinning Methods 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 108
- 239000010410 layer Substances 0.000 description 68
- -1 polypropylene Polymers 0.000 description 30
- 239000004743 Polypropylene Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 20
- 229920001155 polypropylene Polymers 0.000 description 20
- 239000011148 porous material Substances 0.000 description 20
- 239000007789 gas Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 19
- 238000001914 filtration Methods 0.000 description 17
- 239000011230 binding agent Substances 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 14
- 229920005989 resin Polymers 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 125000006850 spacer group Chemical group 0.000 description 11
- 238000007664 blowing Methods 0.000 description 10
- 238000000151 deposition Methods 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 10
- 230000008021 deposition Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- RYRZSXJVEILFRR-UHFFFAOYSA-N 2,3-dimethylterephthalic acid Chemical compound CC1=C(C)C(C(O)=O)=CC=C1C(O)=O RYRZSXJVEILFRR-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 1
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 229920006218 cellulose propionate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
Classifications
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—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 by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/22—Cell-type filters
- B01D25/24—Cell-type roll filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/111—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
-
- 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
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
- B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/18—Filters characterised by the openings or pores
- B01D2201/182—Filters characterised by the openings or pores for depth filtration
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
- B01D2239/0428—Rendering the filter material hydrophobic
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0464—Impregnants
-
- 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
-
- 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
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0681—The layers being joined by gluing
-
- 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
- B01D2239/069—Special geometry of layers
- B01D2239/0695—Wound layers
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1043—Subsequent to assembly
- Y10T156/1049—Folding only
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/649,001 US4112159A (en) | 1973-08-31 | 1976-01-14 | Continuous production of tubular modular filter elements using nonwoven webs from thermoplastic fibers and products |
| US64900176 | 1976-01-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI770092A FI770092A (ja) | 1977-07-15 |
| FI65170B FI65170B (fi) | 1983-12-30 |
| FI65170C true FI65170C (fi) | 1984-04-10 |
Family
ID=24603082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI770092A FI65170C (fi) | 1976-01-14 | 1977-01-12 | Foerfarande foer framstaellning av ett soemloest roerformigt filterelement och ett soemloest roerformigt filterelement |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US4116738A (ja) |
| JP (1) | JPS52107677A (ja) |
| AT (1) | AT360766B (ja) |
| AU (1) | AU510425B2 (ja) |
| BE (1) | BE850368A (ja) |
| BR (1) | BR7700241A (ja) |
| CA (1) | CA1063946A (ja) |
| CH (1) | CH619375A5 (ja) |
| DE (1) | DE2701167C2 (ja) |
| DK (1) | DK149524C (ja) |
| ES (1) | ES455000A1 (ja) |
| FI (1) | FI65170C (ja) |
| FR (1) | FR2338341A1 (ja) |
| GB (1) | GB1539331A (ja) |
| IL (1) | IL51212A (ja) |
| IT (1) | IT1082691B (ja) |
| NL (1) | NL177001C (ja) |
| NO (1) | NO149491C (ja) |
| NZ (1) | NZ183077A (ja) |
| PT (1) | PT66070B (ja) |
| SE (1) | SE430758B (ja) |
| ZA (1) | ZA7769B (ja) |
Families Citing this family (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475972A (en) * | 1981-10-01 | 1984-10-09 | Ontario Research Foundation | Implantable material |
| US4731215A (en) * | 1982-06-07 | 1988-03-15 | Biax Fiberfilm Corporation | Process for forming non-woven webs from highly oriented melt blown fibers |
| US4847125A (en) * | 1982-06-07 | 1989-07-11 | Biax Fiberfilm Corporation | Tube of oriented, heat shrunk, melt blown fibers |
| US4594202A (en) * | 1984-01-06 | 1986-06-10 | Pall Corporation | Method of making cylindrical fibrous filter structures |
| US4726901A (en) * | 1984-01-06 | 1988-02-23 | Pall Corporation | Cylindrical fibrous structures with graded pore size |
| US4880002A (en) * | 1985-05-30 | 1989-11-14 | Corvita Corporation | Stretchable porous sutures |
| US4712553A (en) * | 1985-05-30 | 1987-12-15 | Cordis Corporation | Sutures having a porous surface |
| US4824451A (en) * | 1985-12-31 | 1989-04-25 | Kimberly-Clark Corporation | Melt-blown filter medium |
| US4714647A (en) * | 1986-05-02 | 1987-12-22 | Kimberly-Clark Corporation | Melt-blown material with depth fiber size gradient |
| US4983292A (en) * | 1988-06-27 | 1991-01-08 | Morgan Jr H William | Seamless filter bag and method of its manufacture |
| TW206266B (ja) * | 1991-06-12 | 1993-05-21 | Toray Industries | |
| US5190502A (en) * | 1992-02-07 | 1993-03-02 | Dayco Products, Inc. | Belt tensioning system, belt tensioner therefor and methods of making the same |
| US5366576A (en) * | 1993-04-14 | 1994-11-22 | Clack Corporation | Method for producing tubular products from nonwoven fibers |
| GB9307710D0 (en) * | 1993-04-14 | 1993-06-02 | Rothmans Benson & Hedges | Smoking apparatus-l |
| US5409642A (en) * | 1993-10-06 | 1995-04-25 | Exxon Chemical Patents Inc. | Melt blowing of tubular filters |
| US5431829A (en) * | 1993-12-16 | 1995-07-11 | Pall Corporation | Polymethylpentene filtration medium |
| US6214143B1 (en) * | 1994-05-13 | 2001-04-10 | Johns Mansville International, Inc. | Method and apparatus for forming a uniform blanket of synthetic or glass fibers |
| AU3276895A (en) * | 1994-07-28 | 1996-02-22 | Pall Corporation | Fibrous web and process of preparing same |
| US5582907A (en) * | 1994-07-28 | 1996-12-10 | Pall Corporation | Melt-blown fibrous web |
| US5591335A (en) * | 1995-05-02 | 1997-01-07 | Memtec America Corporation | Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration |
| US5639369A (en) * | 1995-07-14 | 1997-06-17 | W. L. Gore & Associates, Inc. | Filter element |
| US5827430A (en) * | 1995-10-24 | 1998-10-27 | Perry Equipment Corporation | Coreless and spirally wound non-woven filter element |
| US5725812A (en) * | 1996-07-08 | 1998-03-10 | Aaf International | Melt blowing apparatus and method for forming a fibrous layered web of filter media including a fluid distribution arrangement |
| US5653833A (en) * | 1996-07-25 | 1997-08-05 | Memtec America Corporation | Method for integrally joining preformed thermoplastic core elements especially adapted for the continuous manufacture of melt-blown filter cartridges |
| US5772952A (en) * | 1997-02-07 | 1998-06-30 | J&M Laboratories, Inc. | Process of making meltblown yarn |
| US6086696A (en) * | 1998-07-21 | 2000-07-11 | The Boeing Company | Method of forming a seamless, cylindrical, thermoplastic structure with a multiple compaction roller winder |
| US6417120B1 (en) | 1998-12-31 | 2002-07-09 | Kimberly-Clark Worldwide, Inc. | Particle-containing meltblown webs |
| US6319342B1 (en) | 1998-12-31 | 2001-11-20 | Kimberly-Clark Worldwide, Inc. | Method of forming meltblown webs containing particles |
| US6342283B1 (en) | 1999-03-30 | 2002-01-29 | Usf Filtration & Separations, Inc. | Melt-blown tubular core elements and filter cartridges including the same |
| US6358417B1 (en) * | 1999-04-21 | 2002-03-19 | Osmonics, Inc. | Non-woven depth filter element |
| US6446814B1 (en) | 1999-04-22 | 2002-09-10 | Joseph A. King | Method of making a dual filter |
| US7168574B2 (en) * | 1999-04-22 | 2007-01-30 | King Technology | Dual filter |
| US20020155776A1 (en) * | 1999-10-15 | 2002-10-24 | Mitchler Patricia Ann | Particle-containing meltblown webs |
| US6494974B2 (en) | 1999-10-15 | 2002-12-17 | Kimberly-Clark Worldwide, Inc. | Method of forming meltblown webs containing particles |
| US6652871B1 (en) * | 2000-01-21 | 2003-11-25 | Joseph A. King | Delivery system and method of making article |
| CA2331084C (en) * | 2000-01-21 | 2011-10-25 | King Technology, Inc. | Water treatment |
| DE60113127T2 (de) * | 2000-07-28 | 2006-07-06 | Morgan jun., H. William, Michigan City | Verfahren zur Herstellung von Filtern |
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-
1977
- 1977-01-05 IL IL51212A patent/IL51212A/xx unknown
- 1977-01-06 ZA ZA770069A patent/ZA7769B/xx unknown
- 1977-01-06 GB GB370/77A patent/GB1539331A/en not_active Expired
- 1977-01-07 FR FR7700401A patent/FR2338341A1/fr active Granted
- 1977-01-07 AU AU21136/77A patent/AU510425B2/en not_active Expired
- 1977-01-11 NL NLAANVRAGE7700224,A patent/NL177001C/xx not_active IP Right Cessation
- 1977-01-12 CH CH36677A patent/CH619375A5/de not_active IP Right Cessation
- 1977-01-12 FI FI770092A patent/FI65170C/fi not_active IP Right Cessation
- 1977-01-13 SE SE7700278A patent/SE430758B/xx unknown
- 1977-01-13 DE DE2701167A patent/DE2701167C2/de not_active Expired
- 1977-01-13 ES ES455000A patent/ES455000A1/es not_active Expired
- 1977-01-13 NO NO770108A patent/NO149491C/no unknown
- 1977-01-13 NZ NZ183077A patent/NZ183077A/xx unknown
- 1977-01-13 AT AT15777A patent/AT360766B/de not_active IP Right Cessation
- 1977-01-13 DK DK12277A patent/DK149524C/da not_active IP Right Cessation
- 1977-01-13 PT PT66070A patent/PT66070B/pt unknown
- 1977-01-13 BR BR7700241A patent/BR7700241A/pt unknown
- 1977-01-13 IT IT47622/77A patent/IT1082691B/it active
- 1977-01-13 CA CA269,641A patent/CA1063946A/en not_active Expired
- 1977-01-14 JP JP345077A patent/JPS52107677A/ja active Granted
- 1977-01-14 BE BE174065A patent/BE850368A/xx not_active IP Right Cessation
- 1977-04-25 US US05/792,084 patent/US4116738A/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: PALL CORP |