GB1401232A - Multiunit filters - Google Patents

Multiunit filters

Info

Publication number
GB1401232A
GB1401232A GB1846874A GB1846874A GB1401232A GB 1401232 A GB1401232 A GB 1401232A GB 1846874 A GB1846874 A GB 1846874A GB 1846874 A GB1846874 A GB 1846874A GB 1401232 A GB1401232 A GB 1401232A
Authority
GB
United Kingdom
Prior art keywords
end caps
filter medium
filter
joined
softening
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
GB1846874A
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 GB1401232A publication Critical patent/GB1401232A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

1401232 Connecting filter elements together PALL CORP 17 Aug 1972 [17 Sept 1971] 18468/74 Divided out of 1401231 Heading B1D Two or more tubular filter elements with plastics end caps are joined end to end by softening axially outer parts of the end caps, by applying solvent or by heating with a flame or radiant heat, and pressing the end caps together and allowing them to harden to form an integral unit. Softening is localised, being for example limited to headings 20, 21 so that inner parts of the end caps in which the ends of the filter medium are embedded remain hard. The process allows long filter element arrays to be built up using filter medium which can be made only in small sheets. The filter medium described comprises potassium polytitanate fibres (higher than dititanate) of less than 0.5 Á dia. and a length to diameter ratio of 5:1 to 300:1, applied to a supporting sheet on a paper-making machine to form a layer with a maximum pore diameter of 1.2 Á. The supporting sheet may comprise a coarser fibrous layer deposited on a reticulate substrate. Two sheets of the resulting laminate could be joined together with the fine layers innermost. The elements illustrated comprise pleated sheet filter medium enclosed between a grooved perforate polypropylene inner tube 14 and an outer tube of polypropylene netting 13, which can be shrunk into place. Polypropylene end caps are joined to tubes 13, 14 and to the filter medium. When forming the filter sheet into a tube, abutting edges can be joined by softening a resin binder in the fibrous layers or by applying adhesive, the adhesive including fibres similar to those of the layers. When joining elements together they can be located on a common mandrel or in a common cage until the end caps harden.
GB1846874A 1971-09-17 1972-08-17 Multiunit filters Expired GB1401232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18148271A 1971-09-17 1971-09-17

Publications (1)

Publication Number Publication Date
GB1401232A true GB1401232A (en) 1975-07-16

Family

ID=22664454

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3842872A Expired GB1401231A (en) 1971-09-17 1972-08-17 Fluid-permeable materials contsining potassium titanate fibres and process of making the same
GB1846874A Expired GB1401232A (en) 1971-09-17 1972-08-17 Multiunit filters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3842872A Expired GB1401231A (en) 1971-09-17 1972-08-17 Fluid-permeable materials contsining potassium titanate fibres and process of making the same

Country Status (11)

Country Link
JP (1) JPS4848775A (en)
AU (1) AU472936B2 (en)
BE (1) BE788293A (en)
CA (1) CA980528A (en)
DE (1) DE2244811A1 (en)
FR (1) FR2152984A1 (en)
GB (2) GB1401231A (en)
IL (3) IL47917A (en)
IT (1) IT965383B (en)
NL (1) NL7212555A (en)
ZA (1) ZA725640B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083789A2 (en) * 1982-01-13 1983-07-20 Pall Corporation Corrugated filter element with external spiral tape support
EP0213930A2 (en) * 1985-08-27 1987-03-11 Kennecott Corporation Method and structure for integral forming of filter cartridge end caps
GB2194902A (en) * 1986-09-09 1988-03-23 Domnick Hunter Filters Ltd Filter element
WO1996033001A1 (en) * 1995-04-21 1996-10-24 Donaldson Company, Inc. Pleated filter and a method for making the same

Families Citing this family (27)

* Cited by examiner, † Cited by third party
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
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 (en) * 1983-09-21 1985-04-13 株式会社興人 Papermaking method of fibrous alkali metal titanate
FR2555207B1 (en) * 1983-11-18 1986-02-21 Comp Generale Electricite FIBROUS MATERIAL FOR ELECTROLYSER DIAPHRAGM AND DIAPHRAGM COMPRISING SUCH MATERIAL
US4594162A (en) * 1984-02-13 1986-06-10 American Filtrona Corporation Pleated filter and method and apparatus for fabricating same
JPS60226450A (en) * 1984-04-25 1985-11-11 日東紡績株式会社 Manufacture of inorganic porous body
JPS61127680A (en) * 1984-11-22 1986-06-14 三菱製紙株式会社 Manufacture of whisker sheet
US5252207A (en) * 1988-06-15 1993-10-12 Pall Corporation Wrap member having openings
DE4036551C2 (en) * 1990-08-14 1997-04-24 Reinhard Weber Filter cartridge and its manufacture
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 (en) * 1993-12-29 2001-03-05 ニチアス株式会社 Oil holding cylinder for oil application roller
US5669949A (en) * 1995-04-21 1997-09-23 Donaldson Company, Inc. Air filtration arrangement
DE69630489T2 (en) * 1995-07-04 2004-05-06 Nichias Corp. Carrier element for coating liquid and manufacturing process
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
US11434068B2 (en) 2008-09-24 2022-09-06 Restaurant Technologies, Inc. Flame resistant filter apparatus and method
US8277530B2 (en) 2008-09-24 2012-10-02 Ellis Fibre Usa Grease removal apparatus, systems and methods
US9599350B2 (en) * 2008-09-24 2017-03-21 Ellis Fibre Usa Flame resistant filter apparatus and method
WO2010036781A1 (en) * 2008-09-24 2010-04-01 Clean Systems Llc Flame resistant viscose filter apparatus and method
US10167137B2 (en) 2008-09-24 2019-01-01 Efip Holdings Lp Flame resistant viscose filter apparatus and method
JP5658726B2 (en) * 2012-10-31 2015-01-28 大幸機器株式会社 Filter device
GB2543763B (en) * 2015-10-26 2022-08-31 Univ Of Bolton Filtration apparatus with sustainability benefits
JP6570153B1 (en) * 2018-10-31 2019-09-04 株式会社アースクリーンテクノ Air floating material collection material, air purification member and air purification device using the same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083789A2 (en) * 1982-01-13 1983-07-20 Pall Corporation Corrugated filter element with external spiral tape support
EP0083789A3 (en) * 1982-01-13 1984-03-07 Pall Corporation Corrugated filter element with external spiral tape support
EP0213930A2 (en) * 1985-08-27 1987-03-11 Kennecott Corporation Method and structure for integral forming of filter cartridge end caps
EP0213930A3 (en) * 1985-08-27 1988-10-05 Kennecott Corporation Method and structure for integral forming of filter cartridge end caps
GB2194902A (en) * 1986-09-09 1988-03-23 Domnick Hunter Filters Ltd Filter element
GB2194902B (en) * 1986-09-09 1990-01-10 Domnick Hunter Filters Ltd Filter element and method of making a filter element
WO1996033001A1 (en) * 1995-04-21 1996-10-24 Donaldson Company, Inc. Pleated filter and a method for making the same
US5814219A (en) * 1995-04-21 1998-09-29 Donaldson Company, Inc. Pleated filter having a planar sheet of randomly arranged filaments to maintain pleat spacing
AU715109B2 (en) * 1995-04-21 2000-01-20 Donaldson Company Inc. Pleated filter and a method for making the same
CN1068795C (en) * 1995-04-21 2001-07-25 唐纳森公司 Pleated filter and a method for making the same

Also Published As

Publication number Publication date
IL47917A0 (en) 1975-11-25
AU472936B2 (en) 1976-06-10
BE788293A (en) 1973-03-01
ZA725640B (en) 1973-04-25
CA980528A (en) 1975-12-30
GB1401231A (en) 1975-07-16
NL7212555A (en) 1973-03-20
DE2244811A1 (en) 1973-03-29
JPS4848775A (en) 1973-07-10
FR2152984A1 (en) 1973-04-27
AU4564472A (en) 1974-02-21
IL40195A0 (en) 1972-10-29
IL40195A (en) 1976-11-30
IL47917A (en) 1976-11-30
IT965383B (en) 1974-01-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees