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WO1993007944A3 - Filtering element and machine for its manufacture - Google Patents

Filtering element and machine for its manufacture Download PDF

Info

Publication number
WO1993007944A3
WO1993007944A3 PCT/GB1992/001967 GB9201967W WO9307944A3 WO 1993007944 A3 WO1993007944 A3 WO 1993007944A3 GB 9201967 W GB9201967 W GB 9201967W WO 9307944 A3 WO9307944 A3 WO 9307944A3
Authority
WO
WIPO (PCT)
Prior art keywords
coil
machine
manufacture
filtering element
length
Prior art date
Application number
PCT/GB1992/001967
Other languages
French (fr)
Other versions
WO1993007944A2 (en
Inventor
Eric Dodd
Original Assignee
Patents Pending Limited
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
Priority claimed from GB919122702A external-priority patent/GB9122702D0/en
Priority claimed from GB919122701A external-priority patent/GB9122701D0/en
Application filed by Patents Pending Limited filed Critical Patents Pending Limited
Publication of WO1993007944A2 publication Critical patent/WO1993007944A2/en
Publication of WO1993007944A3 publication Critical patent/WO1993007944A3/en

Links

Classifications

    • 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
    • B01D29/114—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 arranged for inward flow 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
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wire Processing (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A filtration apparatus comprises a filter element in the form of a helical coil tension spring (20) suspended freely from one of its ends. The spring rate of the wire, from which the coil is wound, varies progressively along the length of the coil, such that the adjacent turns of the coil are held in contact with each other with a contact pressure which is uniform along the length of the coil. A machine is also disclosed, which may be used to make the filter element.
PCT/GB1992/001967 1991-10-24 1992-10-26 Filtering element and machine for its manufacture WO1993007944A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9122702.5 1991-10-24
GB919122702A GB9122702D0 (en) 1991-10-24 1991-10-24 Filtering element
GB9122701.7 1991-10-24
GB919122701A GB9122701D0 (en) 1991-10-24 1991-10-24 Spring forming machine

Publications (2)

Publication Number Publication Date
WO1993007944A2 WO1993007944A2 (en) 1993-04-29
WO1993007944A3 true WO1993007944A3 (en) 1993-09-30

Family

ID=26299746

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001967 WO1993007944A2 (en) 1991-10-24 1992-10-26 Filtering element and machine for its manufacture

Country Status (2)

Country Link
AU (1) AU2785592A (en)
WO (1) WO1993007944A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4007416B2 (en) 1998-09-18 2007-11-14 Ｓｍｃ株式会社 Filter element
US8147590B2 (en) 2000-08-17 2012-04-03 Bayne Carew Fluid filter separator and method
US7513372B2 (en) * 2000-08-17 2009-04-07 Carew E Bayne Wave coil filter assembly
US8262753B2 (en) 2000-08-17 2012-09-11 Bayne Carew Apparatus for generating hydrocarbon fuel
WO2002013941A1 (en) 2000-08-17 2002-02-21 Carew E Bayne Filter assembly, filter element, and method of utilizing the same
GB0104486D0 (en) * 2001-02-23 2001-04-11 Cross Mfg Co 1938 Ltd An improved filter element
EP1243301B1 (en) * 2001-03-19 2003-09-17 Anton Steinecker Maschinenfabrik GmbH Filter candle
DK1728542T3 (en) * 2005-05-30 2014-07-07 Kanagawa Kiki Kogyo Co Ltd Wire filter element and filtering apparatus
JP4654078B2 (en) * 2005-07-06 2011-03-16 神奈川機器工業株式会社 Notch wire, notch wire element and filtration device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176687A1 (en) * 1972-03-20 1973-11-02 Fortuna Werke Maschf Ag
FR2440764A1 (en) * 1978-11-07 1980-06-06 Voest Alpine Ag SIEVES FOR THE SEPARATION OF SOLID PARTICLES CONTAINED IN SUSPENSIONS
EP0262398A1 (en) * 1986-09-16 1988-04-06 Boll & Kirch Filterbau GmbH Pre-coat filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176687A1 (en) * 1972-03-20 1973-11-02 Fortuna Werke Maschf Ag
FR2440764A1 (en) * 1978-11-07 1980-06-06 Voest Alpine Ag SIEVES FOR THE SEPARATION OF SOLID PARTICLES CONTAINED IN SUSPENSIONS
EP0262398A1 (en) * 1986-09-16 1988-04-06 Boll & Kirch Filterbau GmbH Pre-coat filter

Also Published As

Publication number Publication date
AU2785592A (en) 1993-05-21
WO1993007944A2 (en) 1993-04-29

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