GB1400147A - Filter elements - Google Patents

Filter elements

Info

Publication number
GB1400147A
GB1400147A GB4001371A GB4001371A GB1400147A GB 1400147 A GB1400147 A GB 1400147A GB 4001371 A GB4001371 A GB 4001371A GB 4001371 A GB4001371 A GB 4001371A GB 1400147 A GB1400147 A GB 1400147A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
element
filter
aug
pleated
annular
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
GB4001371A
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.)
Rolls-Royce PLC
Original Assignee
Rolls-Royce PLC
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators 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
    • B01D46/522Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with specific folds, e.g. having different lengths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators 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
    • B01D46/523Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds

Abstract

1400147 Pleated annular filter element ROLLS-ROYCE (1971) Ltd 24 Aug 1972 [26 Aug 1971] 40013/71 Heading B1D An annular pleated paper filter element for liquid fuel has its pleats presenting a wholly or partially arcuate section 18 or 20 to increase area of paper in a given volume. Pleats are spaced apart by continuous or discontinuous circumferential or radial strips applied to one or both surfaces thereof (Figs. 2, 3, not shown). Further inner and/or outer hoops aligned with the spacing strips may reinforce the element. Inner and/or outer support tubes 14, 12 are optional.
GB4001371A 1971-08-26 1971-08-26 Filter elements Expired GB1400147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4001371A GB1400147A (en) 1971-08-26 1971-08-26 Filter elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4001371A GB1400147A (en) 1971-08-26 1971-08-26 Filter elements

Publications (1)

Publication Number Publication Date
GB1400147A true true GB1400147A (en) 1975-07-16

Family

ID=10412719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4001371A Expired GB1400147A (en) 1971-08-26 1971-08-26 Filter elements

Country Status (1)

Country Link
GB (1) GB1400147A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037498A2 (en) * 1980-03-31 1981-10-14 Fläkt Aktiebolag Apparatus for a bag filter
US5543047A (en) 1992-11-06 1996-08-06 Pall Corporation Filter with over-laid pleats in intimate contact
US5647950A (en) * 1991-06-28 1997-07-15 Pall Corporation Filter assembly with a spin welded end cap
US5776342A (en) * 1995-01-13 1998-07-07 Pall Corporation Filter assembly
WO1999042199A1 (en) * 1998-02-17 1999-08-26 Filtrauto Filtering cartridge, in particular for internal combustion engine
US6103120A (en) 1995-10-23 2000-08-15 Pall Corporation Fluid processing apparatus
US6110368A (en) 1994-10-21 2000-08-29 Pall Corporation Fluid processing apparatus
US6598749B2 (en) 2000-09-15 2003-07-29 Cuno Incorporated Spiral pleated filter cartridges
ES2344181A1 (en) * 2007-02-08 2010-08-19 Wind, S.L Filtering disc and disc filter including said filtering discs.
US7922006B2 (en) 2004-11-19 2011-04-12 3M Innovative Properties Company Circumferentially pleated filter assembly and method of forming the same
US8545658B2 (en) 2005-11-09 2013-10-01 3M Innovative Properties Company Apparatus and methods for forming filter sleeves having circumferential pleats for use in a bag-type filter assembly
US9038830B2 (en) 2007-12-21 2015-05-26 3M Innovative Properties Company Filter device

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037498A3 (en) * 1980-03-31 1981-10-21 Flakt Aktiebolag Apparatus for a bag filter
EP0037498A2 (en) * 1980-03-31 1981-10-14 Fläkt Aktiebolag Apparatus for a bag filter
US5871645A (en) 1991-06-28 1999-02-16 Pall Corporation Filter arrangement including a non-perforated housing and an axially pleated filter pack
US5647950A (en) * 1991-06-28 1997-07-15 Pall Corporation Filter assembly with a spin welded end cap
US5543047A (en) 1992-11-06 1996-08-06 Pall Corporation Filter with over-laid pleats in intimate contact
US5725784A (en) 1992-11-06 1998-03-10 Pall Corporation Filtering method
US5876601A (en) 1992-11-06 1999-03-02 Pall Corporation Pleated filter having a helically wrapped septum to tension the filter
US6113784A (en) 1992-11-06 2000-09-05 Pall Corporation Filter
US6110368A (en) 1994-10-21 2000-08-29 Pall Corporation Fluid processing apparatus
US5776342A (en) * 1995-01-13 1998-07-07 Pall Corporation Filter assembly
US6103120A (en) 1995-10-23 2000-08-15 Pall Corporation Fluid processing apparatus
WO1999042199A1 (en) * 1998-02-17 1999-08-26 Filtrauto Filtering cartridge, in particular for internal combustion engine
US6402800B1 (en) 1998-02-17 2002-06-11 Filtrauto Filtering cartridge, in particular for internal combustion engine
US6598749B2 (en) 2000-09-15 2003-07-29 Cuno Incorporated Spiral pleated filter cartridges
US7922006B2 (en) 2004-11-19 2011-04-12 3M Innovative Properties Company Circumferentially pleated filter assembly and method of forming the same
US8075720B2 (en) 2004-11-19 2011-12-13 3M Innovative Properties Company Circumferentially pleated filter assembly and method of forming the same
US8545658B2 (en) 2005-11-09 2013-10-01 3M Innovative Properties Company Apparatus and methods for forming filter sleeves having circumferential pleats for use in a bag-type filter assembly
ES2344181A1 (en) * 2007-02-08 2010-08-19 Wind, S.L Filtering disc and disc filter including said filtering discs.
US9038830B2 (en) 2007-12-21 2015-05-26 3M Innovative Properties Company Filter device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees