GB8925967D0 - Filters - Google Patents

Filters

Info

Publication number
GB8925967D0
GB8925967D0 GB898925967A GB8925967A GB8925967D0 GB 8925967 D0 GB8925967 D0 GB 8925967D0 GB 898925967 A GB898925967 A GB 898925967A GB 8925967 A GB8925967 A GB 8925967A GB 8925967 D0 GB8925967 D0 GB 8925967D0
Authority
GB
United Kingdom
Prior art keywords
filters
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Withdrawn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
GB898925967A
Other versions
GB2225543A (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.)
ENVAIR UK Ltd
Original Assignee
ENVAIR UK 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 ENVAIR UK Ltd filed Critical ENVAIR UK Ltd
Publication of GB8925967D0 publication Critical patent/GB8925967D0/en
Publication of GB2225543A publication Critical patent/GB2225543A/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Withdrawn legal-status Critical Current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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/04—Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning
    • B01D2279/51—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning in clean rooms, e.g. production facilities for electronic devices, laboratories
GB8925967A 1988-11-16 1989-11-16 Air filter element Withdrawn GB2225543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888826828A GB8826828D0 (en) 1988-11-16 1988-11-16 Filters

Publications (2)

Publication Number Publication Date
GB8925967D0 true GB8925967D0 (en) 1990-01-04
GB2225543A GB2225543A (en) 1990-06-06

Family

ID=10646968

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888826828A Pending GB8826828D0 (en) 1988-11-16 1988-11-16 Filters
GB8925967A Withdrawn GB2225543A (en) 1988-11-16 1989-11-16 Air filter element

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888826828A Pending GB8826828D0 (en) 1988-11-16 1988-11-16 Filters

Country Status (1)

Country Link
GB (2) GB8826828D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277458B (en) * 1993-04-28 1996-08-14 Pall Corp Filters and filter manufacture
GB2280388A (en) * 1993-07-26 1995-02-01 Numatic Int Ltd Vacuum cleaner filter
AU4721199A (en) * 1998-06-29 2000-01-17 Pall Corporation Pleated filter and a method for making the same
US6932850B1 (en) * 1998-06-29 2005-08-23 Pall Corporation Pleated filter and a method for making the same
DE10025141C2 (en) * 2000-05-20 2002-06-13 Karlsruhe Forschzent filter element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB764911A (en) * 1953-08-27 1957-01-02 British Filters Ltd Improvements in and relating to filters and filtering elements
US3216578A (en) * 1960-12-19 1965-11-09 Donaldson Co Inc Pleated filter
US3372533A (en) * 1966-07-11 1968-03-12 Farr Co Self-supporting high density filter
GB1504135A (en) * 1975-03-14 1978-03-15 Atomic Energy Authority Uk Filter packs
GB2131717A (en) * 1982-11-15 1984-06-27 Atomic Energy Authority Uk Air filter

Also Published As

Publication number Publication date
GB2225543A (en) 1990-06-06
GB8826828D0 (en) 1988-12-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)