IL47917A - Multiunit filter element array and a process for forming the same - Google Patents
Multiunit filter element array and a process for forming the sameInfo
- Publication number
- IL47917A IL47917A IL47917A IL4791772A IL47917A IL 47917 A IL47917 A IL 47917A IL 47917 A IL47917 A IL 47917A IL 4791772 A IL4791772 A IL 4791772A IL 47917 A IL47917 A IL 47917A
- Authority
- IL
- Israel
- Prior art keywords
- joined
- end caps
- accordance
- filter element
- end cap
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 6
- 239000012530 fluid Substances 0.000 claims abstract 2
- 238000001914 filtration Methods 0.000 claims 3
- 239000004033 plastic Substances 0.000 claims 2
- 239000012815 thermoplastic material Substances 0.000 claims 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000012229 microporous material Substances 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 4
- 229910052700 potassium Inorganic materials 0.000 abstract 4
- 239000011591 potassium Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/022—Filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- 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
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
- B01D29/56—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 multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—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 multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B01D2239/0464—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
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0627—Spun-bonded
-
- 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
- B01D2239/0668—The layers being joined by heat or melt-bonding
-
- 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
- B01D2239/08—Special characteristics of binders
- B01D2239/086—Binders between particles or fibres
-
- 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
- B01D2239/1216—Pore size
-
- 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
- B01D2239/1233—Fibre diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/026—Porous
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Nonwoven Fabrics (AREA)
- Paper (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18148271A | 1971-09-17 | 1971-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
IL47917A true IL47917A (en) | 1976-11-30 |
Family
ID=22664454
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL47917A IL47917A (en) | 1971-09-17 | 1972-08-24 | Multiunit filter element array and a process for forming the same |
IL40195A IL40195A (en) | 1971-09-17 | 1972-08-24 | Fluid-permeable microporous materials containing potassium titanate and process of making the same |
IL47917A IL47917A0 (en) | 1971-09-17 | 1975-08-13 | A multiunit filter element array and a process for forming the same |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL40195A IL40195A (en) | 1971-09-17 | 1972-08-24 | Fluid-permeable microporous materials containing potassium titanate and process of making the same |
IL47917A IL47917A0 (en) | 1971-09-17 | 1975-08-13 | A multiunit filter element array and a process for forming the same |
Country Status (11)
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086266A (en) * | 1977-04-06 | 1978-04-25 | Population Research Incorporated | Method of bacterially purifying methyl cyanoacrylate |
JPS5631099A (en) * | 1979-08-21 | 1981-03-28 | Otsuka Kagaku Yakuhin | Fiber paper |
JPS574710A (en) * | 1980-06-13 | 1982-01-11 | Mitsubishi Mining & Cement Co | Manufacture of ceramic porous body |
US4402830A (en) * | 1982-01-13 | 1983-09-06 | Pall Corporation | Corrugated filter element with external spiral tape support |
NZ205183A (en) * | 1982-08-13 | 1987-01-23 | Unilever Plc | Wiping cloth includes a liquid"active material" |
NZ206331A (en) * | 1982-11-26 | 1986-05-09 | Unilever Plc | Liquid-permeable,flexible,sheet-like articles |
JPS6065199A (ja) * | 1983-09-21 | 1985-04-13 | 株式会社興人 | 繊維状チタン酸アルカリ金属塩の抄造方法 |
FR2555207B1 (fr) * | 1983-11-18 | 1986-02-21 | Comp Generale Electricite | Materiau fibreux pour diaphragme d'electrolyseur et diaphragme comportant un tel materiau |
US4594162A (en) * | 1984-02-13 | 1986-06-10 | American Filtrona Corporation | Pleated filter and method and apparatus for fabricating same |
JPS60226450A (ja) * | 1984-04-25 | 1985-11-11 | 日東紡績株式会社 | 無機質多孔質体の製造方法 |
JPS61127680A (ja) * | 1984-11-22 | 1986-06-14 | 三菱製紙株式会社 | ウイスカ−シ−トの製造方法 |
JPS6287215A (ja) * | 1985-08-27 | 1987-04-21 | ケネコツト コ−ポレイシヨン | フイルタ−カ−トリツジエンドキヤツプ及びその一体形成方法 |
GB8621660D0 (en) * | 1986-09-09 | 1986-10-15 | Domnick Hunter Filters Ltd | Filter element |
US5252207A (en) * | 1988-06-15 | 1993-10-12 | Pall Corporation | Wrap member having openings |
DE4036551C2 (de) * | 1990-08-14 | 1997-04-24 | Reinhard Weber | Filterpatrone sowie deren Herstellung |
GB9019855D0 (en) * | 1990-09-11 | 1990-10-24 | Pall Corp | Depth filter media |
US5238474A (en) | 1990-10-19 | 1993-08-24 | Donaldson Company, Inc. | Filtration arrangement |
JP3139905B2 (ja) * | 1993-12-29 | 2001-03-05 | ニチアス株式会社 | オイル塗布ローラのオイル保持筒 |
US5669949A (en) * | 1995-04-21 | 1997-09-23 | Donaldson Company, Inc. | Air filtration arrangement |
WO1996033001A1 (en) * | 1995-04-21 | 1996-10-24 | Donaldson Company, Inc. | Pleated filter and a method for making the same |
DE69630489T2 (de) * | 1995-07-04 | 2004-05-06 | Nichias Corp. | Trägerelement für Beschichtungsflüssigkeit und Herstellungsverfahren |
US5858044A (en) | 1996-07-11 | 1999-01-12 | Donaldson Company, Inc. | Filter arrangement including removable filter with first and second media secured together |
US6007608A (en) | 1998-07-10 | 1999-12-28 | Donaldson Company, Inc. | Mist collector and method |
US8277530B2 (en) | 2008-09-24 | 2012-10-02 | Ellis Fibre Usa | Grease removal apparatus, systems and methods |
US10167137B2 (en) | 2008-09-24 | 2019-01-01 | Efip Holdings Lp | Flame resistant viscose filter apparatus and method |
US11434068B2 (en) | 2008-09-24 | 2022-09-06 | Restaurant Technologies, Inc. | Flame resistant filter apparatus and method |
WO2010036781A1 (en) * | 2008-09-24 | 2010-04-01 | Clean Systems Llc | Flame resistant viscose filter apparatus and method |
US9599350B2 (en) * | 2008-09-24 | 2017-03-21 | Ellis Fibre Usa | Flame resistant filter apparatus and method |
JP5658726B2 (ja) * | 2012-10-31 | 2015-01-28 | 大幸機器株式会社 | フィルタ装置 |
GB2543763B (en) * | 2015-10-26 | 2022-08-31 | Univ Of Bolton | Filtration apparatus with sustainability benefits |
JP6570153B1 (ja) * | 2018-10-31 | 2019-09-04 | 株式会社アースクリーンテクノ | 空気中浮遊物捕集材、これを用いる空気浄化部材及び空気浄化装置 |
-
0
- BE BE788293D patent/BE788293A/xx unknown
-
1972
- 1972-08-14 CA CA149,350A patent/CA980528A/en not_active Expired
- 1972-08-16 AU AU45644/72A patent/AU472936B2/en not_active Expired
- 1972-08-16 ZA ZA725640A patent/ZA725640B/xx unknown
- 1972-08-17 GB GB3842872A patent/GB1401231A/en not_active Expired
- 1972-08-17 GB GB1846874A patent/GB1401232A/en not_active Expired
- 1972-08-24 IL IL47917A patent/IL47917A/en unknown
- 1972-08-24 IL IL40195A patent/IL40195A/en unknown
- 1972-09-13 DE DE2244811A patent/DE2244811A1/de active Pending
- 1972-09-14 FR FR7232658A patent/FR2152984A1/fr not_active Withdrawn
- 1972-09-15 NL NL7212555A patent/NL7212555A/xx unknown
- 1972-09-15 IT IT52789/72A patent/IT965383B/it active
- 1972-09-18 JP JP47093553A patent/JPS4848775A/ja active Pending
-
1975
- 1975-08-13 IL IL47917A patent/IL47917A0/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IL47917A0 (en) | 1975-11-25 |
NL7212555A (enrdf_load_stackoverflow) | 1973-03-20 |
GB1401231A (en) | 1975-07-16 |
AU472936B2 (en) | 1976-06-10 |
IT965383B (it) | 1974-01-31 |
CA980528A (en) | 1975-12-30 |
GB1401232A (en) | 1975-07-16 |
JPS4848775A (enrdf_load_stackoverflow) | 1973-07-10 |
DE2244811A1 (de) | 1973-03-29 |
ZA725640B (en) | 1973-04-25 |
BE788293A (fr) | 1973-03-01 |
IL40195A0 (en) | 1972-10-29 |
AU4564472A (en) | 1974-02-21 |
IL40195A (en) | 1976-11-30 |
FR2152984A1 (enrdf_load_stackoverflow) | 1973-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL47917A (en) | Multiunit filter element array and a process for forming the same | |
DE68918183T2 (de) | Filterelement und Verfahren zu dessen Herstellung. | |
US2654124A (en) | Method and apparatus for manufacture of plastic edge type filters | |
DE2353610B2 (de) | Endkappe zur Abdeckung von rohrförmigen Filterelementen | |
GB1405913A (en) | Filtration assemblies and method of filtering | |
CA2034521A1 (en) | Cylindrical filters and their manufacture | |
ES2030719T3 (es) | Compuesto para la union de elementos filtrantes plegados en zig-zag a una caperuza extrema y su procedimiento. | |
US4680118A (en) | Pleated and sealed filter cartridge with connected film | |
EP0213930A3 (en) | Method and structure for integral forming of filter cartridge end caps | |
JP2507456B2 (ja) | フィルタ−エレメントとその製法 | |
DE96306T1 (de) | Filterelement mit mikroporoeser ultrafiltrationsmembran. | |
DE68914722T2 (de) | Filteranordnung. | |
ATE27786T1 (de) | Faservliesroehre fuer die membranfiltrierung und verfahren zu ihrer herstellung. | |
IE39722B1 (en) | A method of perforating corrugated plastics tube | |
US3311526A (en) | Apparatus for making filters | |
EP0253945B1 (de) | Membrantasche, Wickelmodul aus einer solchen Membrantasche sowie Verfahren zur Herstellung derselben | |
US2354395A (en) | Filter element | |
WO2018146065A1 (de) | Optisches linsensystem mit wenigstens zwei stoffschlüssig miteinander verbundenen linsen | |
US2413431A (en) | Filter unit and method of making same | |
GB773875A (en) | Improvements relating to the filtration of fluids | |
JPS61227809A (ja) | 合成樹脂製濾過エレメントおよびその製造方法 | |
US2582340A (en) | Plastic edge type filter | |
IE39489B1 (en) | Process for coating or sheets | |
GB907747A (en) | Improvements in filter elements | |
JPH05329338A (ja) | プリーツ式フイルターエレメントの製造方法 |