FR2356444A1 - FILTER ELEMENT IN SHEET - Google Patents

FILTER ELEMENT IN SHEET

Info

Publication number
FR2356444A1
FR2356444A1 FR7720323A FR7720323A FR2356444A1 FR 2356444 A1 FR2356444 A1 FR 2356444A1 FR 7720323 A FR7720323 A FR 7720323A FR 7720323 A FR7720323 A FR 7720323A FR 2356444 A1 FR2356444 A1 FR 2356444A1
Authority
FR
France
Prior art keywords
sheet
filter element
material along
filters
edges
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.)
Withdrawn
Application number
FR7720323A
Other languages
French (fr)
Inventor
Robert Bell
David Nigel Lonsdale
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2356444A1 publication Critical patent/FR2356444A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/523—Particle 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)
  • Thermistors And Varistors (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

L'invention concerne un élément filtrant. Elle est caractérisée par le fait qu'une partie de ladite feuille de matériau filtrant de l'élément le long de l'un de ses bords qui s'étend en direction transversale auxdites lignes de pliage est pliée vers l'intérieur en formant une double épaisseur de materiau le long dudit bord. L'invention s'applique à la fabrication des filtres de gaz, notamment d'air.The invention relates to a filter element. It is characterized in that a part of said sheet of element filter material along one of its edges which extends in a direction transverse to said fold lines is folded inwards forming a double thickness of material along said edge. The invention applies to the manufacture of gas filters, in particular air filters.

FR7720323A 1976-07-03 1977-07-01 FILTER ELEMENT IN SHEET Withdrawn FR2356444A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27786/76A GB1579231A (en) 1976-07-03 1976-07-03 Method of manufacturing a filter element

Publications (1)

Publication Number Publication Date
FR2356444A1 true FR2356444A1 (en) 1978-01-27

Family

ID=10265298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720323A Withdrawn FR2356444A1 (en) 1976-07-03 1977-07-01 FILTER ELEMENT IN SHEET

Country Status (22)

Country Link
JP (1) JPS5331266A (en)
AU (1) AU510885B2 (en)
BR (1) BR7704303A (en)
CA (1) CA1091596A (en)
CY (1) CY1112A (en)
DE (1) DE2729207A1 (en)
DK (1) DK295977A (en)
EG (1) EG12826A (en)
ES (1) ES460339A1 (en)
FI (1) FI63524C (en)
FR (1) FR2356444A1 (en)
GB (1) GB1579231A (en)
GR (1) GR63823B (en)
HK (1) HK13781A (en)
IL (1) IL52410A (en)
IT (1) IT1086158B (en)
KE (1) KE3121A (en)
MY (1) MY8100376A (en)
NL (1) NL7707346A (en)
NO (1) NO148626C (en)
PT (1) PT66737B (en)
SE (1) SE421489B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470630A1 (en) * 1979-11-28 1981-06-12 Gilardini Spa Air filters prodn. system - involves applying hot adhesive to strip edges and folding in accordion pleats

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS208254B1 (en) * 1978-09-11 1981-09-15 Jiri Albrecht High-efficiency industrial filter
US4452619A (en) * 1982-06-18 1984-06-05 Donaldson Company, Inc. Pleated filter element having integral pleat spacers
GB2162768B (en) * 1984-08-06 1989-01-11 Tilghman Wheelabrator Ltd Filtering apparatus
US4615804A (en) * 1984-08-30 1986-10-07 Donaldson Company, Inc. High density pleat spacing and scoring tool and filter made therewith
JPS61140217A (en) * 1984-12-12 1986-06-27 Mitsubishi Electric Corp Semiconductor integrated circuit
JPS61130321U (en) * 1985-02-01 1986-08-15
GB2209354B (en) * 1987-08-31 1991-10-30 Tsuchiya Seisakusho Filter medium forming system and process
US4940500A (en) * 1987-08-31 1990-07-10 Tsuchiya Mfg. Co., Ltd. Filter medium forming system and process
JPH01137715U (en) * 1988-03-07 1989-09-20
JPH0319507U (en) * 1989-07-05 1991-02-26
JPH0332909U (en) * 1989-07-31 1991-03-29
DE4138890A1 (en) * 1991-11-27 1993-06-03 Mann & Hummel Filter Fan folded filter insert with folded edges prevents unfiltered gas ingress - requiring no heat applied plasticised sealing material and avoiding heat damage esp. for automotive applications
JP4761711B2 (en) * 2004-01-06 2011-08-31 フロイント産業株式会社 Filter, filter device, and granular material processing device
DE102004052188A1 (en) * 2004-10-27 2006-05-04 Robert Bosch Gmbh Filter device, in particular particulate filter for an exhaust system of an internal combustion engine
DE102007057384B4 (en) * 2007-11-27 2015-05-21 Mann + Hummel Gmbh Method for producing a filter element and filter element
DE102014212066A1 (en) * 2014-06-24 2015-12-24 Mahle International Gmbh filter element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2049893A5 (en) * 1969-06-05 1971-03-26 Cav Ltd Synthetic resin moulding
CH557191A (en) * 1973-05-22 1974-12-31 Haldimann Consultants Folded filter esp. for engine intakes - has transverse slits across glued edges to relieve stress in glue

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2049893A5 (en) * 1969-06-05 1971-03-26 Cav Ltd Synthetic resin moulding
CH557191A (en) * 1973-05-22 1974-12-31 Haldimann Consultants Folded filter esp. for engine intakes - has transverse slits across glued edges to relieve stress in glue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470630A1 (en) * 1979-11-28 1981-06-12 Gilardini Spa Air filters prodn. system - involves applying hot adhesive to strip edges and folding in accordion pleats

Also Published As

Publication number Publication date
NO148626C (en) 1983-11-16
KE3121A (en) 1981-05-29
AU510885B2 (en) 1980-07-17
CY1112A (en) 1981-12-04
FI772038A (en) 1978-01-04
CA1091596A (en) 1980-12-16
HK13781A (en) 1981-04-16
BR7704303A (en) 1978-05-02
DE2729207A1 (en) 1978-01-12
AU2657577A (en) 1979-01-04
NL7707346A (en) 1978-01-05
IT1086158B (en) 1985-05-28
MY8100376A (en) 1981-12-31
IL52410A (en) 1980-09-16
EG12826A (en) 1980-12-31
FI63524B (en) 1983-03-31
DK295977A (en) 1978-01-04
PT66737A (en) 1977-07-01
IL52410A0 (en) 1977-08-31
SE7707649L (en) 1978-01-04
NO772350L (en) 1978-01-04
SE421489B (en) 1982-01-04
PT66737B (en) 1978-11-27
ES460339A1 (en) 1978-08-01
GB1579231A (en) 1980-11-19
NO148626B (en) 1983-08-08
GR63823B (en) 1979-12-19
JPS5331266A (en) 1978-03-24
FI63524C (en) 1983-07-11

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Legal Events

Date Code Title Description
ST Notification of lapse