FR2278373A1 - Helically wound filter made from roving - wound on under tension and radial pressure without crushing - Google Patents

Helically wound filter made from roving - wound on under tension and radial pressure without crushing

Info

Publication number
FR2278373A1
FR2278373A1 FR7522005A FR7522005A FR2278373A1 FR 2278373 A1 FR2278373 A1 FR 2278373A1 FR 7522005 A FR7522005 A FR 7522005A FR 7522005 A FR7522005 A FR 7522005A FR 2278373 A1 FR2278373 A1 FR 2278373A1
Authority
FR
France
Prior art keywords
roving
winding
wound
filter
during
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.)
Granted
Application number
FR7522005A
Other languages
French (fr)
Other versions
FR2278373B1 (en
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.)
Brunswick Corp
Original Assignee
Brunswick 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 Brunswick Corp filed Critical Brunswick Corp
Publication of FR2278373A1 publication Critical patent/FR2278373A1/en
Application granted granted Critical
Publication of FR2278373B1 publication Critical patent/FR2278373B1/fr
Granted legal-status Critical Current

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
    • B01D29/13—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
    • B01D29/216—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets with wound sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

A method of making a filter, esp. for a filter cartridge, consists of pretreating a fibrous roving with a hardening agent, then winding the roving helically onto a core and gluing it. Pref., the roving is made sufficiently stiff by the hardening agent to prevent if from being crushed while it is wound on. The hardening agent may be heated to harden it and then dried at a lower temperature; in particular the agent is an epoxy resin which is completely chemically hardened in the final treatment. It may contain a solvent which is evaporated. The hardening may be continued during the winding operation. Before winding on, the roving may be tensioned to stretch it, esp. by passing it during impregnation through a funnel shaped die. A radial pressure may be applied by rollers during winding. During the gluing stage, an axial load is applied to the resultant filter. A stable filter, permitting the passage of particles smaller than the designated size, is obtained.
FR7522005A 1974-07-15 1975-07-11 Helically wound filter made from roving - wound on under tension and radial pressure without crushing Granted FR2278373A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48866574A 1974-07-15 1974-07-15

Publications (2)

Publication Number Publication Date
FR2278373A1 true FR2278373A1 (en) 1976-02-13
FR2278373B1 FR2278373B1 (en) 1979-05-11

Family

ID=23940624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7522005A Granted FR2278373A1 (en) 1974-07-15 1975-07-11 Helically wound filter made from roving - wound on under tension and radial pressure without crushing

Country Status (3)

Country Link
JP (1) JPS5134469A (en)
DE (1) DE2531401A1 (en)
FR (1) FR2278373A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0352090Y2 (en) * 1984-11-22 1991-11-11
JPH02144109A (en) * 1988-11-24 1990-06-01 Ngk Insulators Ltd Filter for gas generator and its production
US5827430A (en) * 1995-10-24 1998-10-27 Perry Equipment Corporation Coreless and spirally wound non-woven filter element
JP2779923B2 (en) * 1995-11-27 1998-07-23 日本碍子株式会社 Method of manufacturing filter for gas generator
DE102007003410B4 (en) * 2007-01-23 2012-07-12 Produktions- Und Umweltservice Gmbh Ion exchange filter cartridge made from modified natural fiber yarns for the removal of particles, heavy metals and hardness formers in water treatment and their production

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417974B2 (en) * 1971-11-01 1979-07-04

Also Published As

Publication number Publication date
DE2531401A1 (en) 1976-01-29
FR2278373B1 (en) 1979-05-11
JPS5134469A (en) 1976-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse