GB2150461B - Air filter - Google Patents

Air filter

Info

Publication number
GB2150461B
GB2150461B GB08332093A GB8332093A GB2150461B GB 2150461 B GB2150461 B GB 2150461B GB 08332093 A GB08332093 A GB 08332093A GB 8332093 A GB8332093 A GB 8332093A GB 2150461 B GB2150461 B GB 2150461B
Authority
GB
United Kingdom
Prior art keywords
air filter
filter
air
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
GB08332093A
Other versions
GB8332093D0 (en
GB2150461A (en
Inventor
Dennis Albert George Marshall
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.)
Marshall D A G
Original Assignee
Marshall D A G
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 Marshall D A G filed Critical Marshall D A G
Priority to GB08332093A priority Critical patent/GB2150461B/en
Publication of GB8332093D0 publication Critical patent/GB8332093D0/en
Publication of GB2150461A publication Critical patent/GB2150461A/en
Application granted granted Critical
Publication of GB2150461B publication Critical patent/GB2150461B/en
Expired 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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
GB08332093A 1983-12-01 1983-12-01 Air filter Expired GB2150461B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08332093A GB2150461B (en) 1983-12-01 1983-12-01 Air filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08332093A GB2150461B (en) 1983-12-01 1983-12-01 Air filter

Publications (3)

Publication Number Publication Date
GB8332093D0 GB8332093D0 (en) 1984-01-11
GB2150461A GB2150461A (en) 1985-07-03
GB2150461B true GB2150461B (en) 1987-08-05

Family

ID=10552675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08332093A Expired GB2150461B (en) 1983-12-01 1983-12-01 Air filter

Country Status (1)

Country Link
GB (1) GB2150461B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206295B (en) * 1987-07-03 1991-03-27 Marshall D A G Combined high-efficiency fluid filter and activated carbon filter
US4826517A (en) * 1988-04-29 1989-05-02 Bendix Electronics Limited Disposable air cleaner with one piece housing
GB2227430B (en) * 1988-11-30 1992-08-12 Marshall D A G Fluid filter
CA2061454C (en) * 1991-02-19 2000-08-01 Teruichi Kadoya Filter element and method for producing the same
DE4345129A1 (en) * 1993-12-30 1995-07-06 Detroit Holding Ltd Method of manufacturing a fluid filter
DE19548197C2 (en) * 1995-12-22 1999-05-20 Freudenberg Carl Fa Pleated filter insert
US7625418B1 (en) * 2005-06-08 2009-12-01 Aaf-Mcquay, Inc. Spacer arrangement for pleated filter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389031A (en) * 1966-03-07 1968-06-18 Borje O Rosaen Method of manufacturing pleated filters

Also Published As

Publication number Publication date
GB8332093D0 (en) 1984-01-11
GB2150461A (en) 1985-07-03

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20031130