GB764702A - Improvements in filter elements - Google Patents

Improvements in filter elements

Info

Publication number
GB764702A
GB764702A GB11554/54A GB1155454A GB764702A GB 764702 A GB764702 A GB 764702A GB 11554/54 A GB11554/54 A GB 11554/54A GB 1155454 A GB1155454 A GB 1155454A GB 764702 A GB764702 A GB 764702A
Authority
GB
United Kingdom
Prior art keywords
lines
zig
zag
folding
parallel
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
GB11554/54A
Inventor
Edward Arthur Stokes
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.)
Vokes Ltd
Original Assignee
Vokes Ltd
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 Vokes Ltd filed Critical Vokes Ltd
Priority to GB11554/54A priority Critical patent/GB764702A/en
Priority claimed from US503953A external-priority patent/US2862624A/en
Publication of GB764702A publication Critical patent/GB764702A/en
Expired legal-status Critical Current

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
    • 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
    • B01D29/111Making filtering elements
    • 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 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/12Pleated filters

Abstract

764,702. Filters. VOKES, Ltd. April 19, 1955 [April 21, 1954], No. 11554/54. Class 46. [Also in-Group XXVIII] A filter element of somewhat self-supporting permeable material e.g. paper is formed by first folding a sheet of the paper zig-zag fashion along the parallel broken lines shown in Fig. 2 then folding the pleats so formed zig-zag fashion along lines A to J substantially normal to the first fold lines whereby the latter are converted from parallel straight lines to parallel zig-zag lines 2 to 9. The pleats of the element so formed are strengthened by the folds transverse to their depth and are maintained open as shown in Fig. 1. The element is sealed at its periphery into a casing. In a modification the second zig-zag folding is effected along a series of alternately inclined straight lines substantially but not precisely normal to the first set of lines.
GB11554/54A 1954-04-21 1954-04-21 Improvements in filter elements Expired GB764702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11554/54A GB764702A (en) 1954-04-21 1954-04-21 Improvements in filter elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB11554/54A GB764702A (en) 1954-04-21 1954-04-21 Improvements in filter elements
US503953A US2862624A (en) 1954-04-21 1955-04-26 Filter elements

Publications (1)

Publication Number Publication Date
GB764702A true GB764702A (en) 1957-01-02

Family

ID=9988369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11554/54A Expired GB764702A (en) 1954-04-21 1954-04-21 Improvements in filter elements

Country Status (1)

Country Link
GB (1) GB764702A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007090778A1 (en) * 2006-02-09 2007-08-16 Mann+Hummel Gmbh Filter element for an air filter
WO2009015684A1 (en) * 2007-07-27 2009-02-05 Mann+Hummel Gmbh Air filter, especially for internal combustion engines in motor vehicles, and method for the production of such an air filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007090778A1 (en) * 2006-02-09 2007-08-16 Mann+Hummel Gmbh Filter element for an air filter
WO2009015684A1 (en) * 2007-07-27 2009-02-05 Mann+Hummel Gmbh Air filter, especially for internal combustion engines in motor vehicles, and method for the production of such an air filter

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