GB1516721A - Air filter - Google Patents

Air filter

Info

Publication number
GB1516721A
GB1516721A GB27834/75A GB2783475A GB1516721A GB 1516721 A GB1516721 A GB 1516721A GB 27834/75 A GB27834/75 A GB 27834/75A GB 2783475 A GB2783475 A GB 2783475A GB 1516721 A GB1516721 A GB 1516721A
Authority
GB
United Kingdom
Prior art keywords
partition
elements
reverse flow
apertures
filter
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
GB27834/75A
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.)
Donaldson Co Inc
Original Assignee
Donaldson Co Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23931045&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1516721(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Donaldson Co Inc filed Critical Donaldson Co Inc
Publication of GB1516721A publication Critical patent/GB1516721A/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
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • 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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4281—Venturi's or systems showing a venturi effect
    • 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
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/31—Other construction details
    • B01D2201/313—Means for protecting the filter from the incoming fluid, e.g. shields
    • 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
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/024—Mounting aids

Abstract

1516721 Air filter DONALDSON CO INC 2 July 1975 [5 July 1974] 27834/75 Headings B1D and B1J An air filter comprises a housing divided by a partition 13 having apertures 24 round which filter elements 26 are removably clamped, each element comprising an axially pleated sleeve 27 of paper enclosed between concentric perforate sleeves 31, 32 which are joined to sleeve 27 by rings of adhesive 33, 34, all three sleeves being secured to upper and lower end plates 35, 37. Lower plate 37 closes the bottom of the element and supports a tie rod 42 which screws into a barrel nut 46 seating in grooves 47 on a spider 50 welded to the lower face of partition 13. The inlet chamber below the partition has access doors (12) for changing elements, a powered dust discharge valve (17) and an inlet (20) with a perforate baffle to effect preliminary separation of heavy dust (Fig. 1 not shown). The outlet chamber above the partition encloses venturi nozzles 55 and reverse flow jet apertures 57 for reverse flow cleaning of the elements. Apertures 57 in each horizontal pipe 60, (61) supply reverse flow air to two elements when a corresponding timer-controlled valve (62) is opened (Fig. 3 not shown). An air pump or fan may be attached upstream or downstream of the filter.
GB27834/75A 1974-07-05 1975-07-02 Air filter Expired GB1516721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48621574A 1974-07-05 1974-07-05

Publications (1)

Publication Number Publication Date
GB1516721A true GB1516721A (en) 1978-07-05

Family

ID=23931045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27834/75A Expired GB1516721A (en) 1974-07-05 1975-07-02 Air filter

Country Status (9)

Country Link
JP (2) JPS6012886B2 (en)
BR (1) BR7504216A (en)
CA (1) CA1069835A (en)
DE (2) DE2528220A1 (en)
ES (1) ES439138A1 (en)
FR (1) FR2276861A1 (en)
GB (1) GB1516721A (en)
IT (1) IT1040808B (en)
ZA (1) ZA754327B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250454A (en) * 1988-09-16 1992-06-10 Atomic Energy Authority Uk Air filter
CN102390692A (en) * 2011-07-07 2012-03-28 昆明冶金研究院 Dust catcher for belt conveyor with large inclined angle
CN103405967A (en) * 2013-08-16 2013-11-27 山东天元压力容器有限公司 Melamine hot gas filter
USD770026S1 (en) 2011-10-18 2016-10-25 Camfil Usa, Inc. Filter
USD854136S1 (en) 2015-04-16 2019-07-16 Clark Filter, Inc. End cap for an air filter
US11161070B2 (en) 2016-05-13 2021-11-02 Donaldson Company, Inc. Filter media, elements, and methods

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012886B2 (en) * 1974-07-05 1985-04-04 ダナルドソン、カムパニ、インコーパレイテイド Air cleaning device with reverse jet cleaning means
JPS5631311Y2 (en) * 1977-01-28 1981-07-25
JPS5423267A (en) * 1977-07-21 1979-02-21 Nippon Seimitsu Kogyo Dusting device
US4174204A (en) * 1978-08-04 1979-11-13 Donaldson Company, Inc. Pulse jet cleaned air filter assembly with integral air compressor
US4214882A (en) * 1978-08-08 1980-07-29 Donaldson Company, Inc. Portable air filter assembly with pulse jet self-cleaning filters
CA1133691A (en) * 1978-11-20 1982-10-19 Gunter J. Lissy Powder spray booth
US4272262A (en) * 1979-09-27 1981-06-09 American Air Filter Company, Inc. Gas-separation filter device
SE421488B (en) * 1979-11-16 1982-01-04 Loeoef Ingemar FILTER RECOVERY FOR RECOVERY OF MATERIAL MATERIAL CURRENT OF A AIR FLOW FROM A SPRAYBOX
JPS57173819U (en) * 1981-04-23 1982-11-02
JPS6287724U (en) * 1985-11-21 1987-06-04
JPS6320922U (en) * 1986-07-24 1988-02-12
JP2010240524A (en) * 2009-04-01 2010-10-28 Amc:Kk Cartridge filter element for filtration

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545052B2 (en) * 1972-02-08 1979-03-13
JPS6012886B2 (en) * 1974-07-05 1985-04-04 ダナルドソン、カムパニ、インコーパレイテイド Air cleaning device with reverse jet cleaning means

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250454A (en) * 1988-09-16 1992-06-10 Atomic Energy Authority Uk Air filter
GB2250454B (en) * 1988-09-16 1993-03-03 Atomic Energy Authority Uk Air filter
CN102390692A (en) * 2011-07-07 2012-03-28 昆明冶金研究院 Dust catcher for belt conveyor with large inclined angle
USD770026S1 (en) 2011-10-18 2016-10-25 Camfil Usa, Inc. Filter
US9937452B2 (en) 2011-10-18 2018-04-10 Camfil Usa, Inc. Air filter with balanced seal
USD866739S1 (en) 2011-10-18 2019-11-12 Camfil Usa, Inc. Filter
US10639575B2 (en) 2011-10-18 2020-05-05 Camfil Usa, Inc. Air filter with balanced seal
CN103405967A (en) * 2013-08-16 2013-11-27 山东天元压力容器有限公司 Melamine hot gas filter
USD854136S1 (en) 2015-04-16 2019-07-16 Clark Filter, Inc. End cap for an air filter
US11161070B2 (en) 2016-05-13 2021-11-02 Donaldson Company, Inc. Filter media, elements, and methods
US11845027B2 (en) 2016-05-13 2023-12-19 Donaldson Company, Inc. Filter media, elements, and methods

Also Published As

Publication number Publication date
JPS56129024A (en) 1981-10-08
DE7520127U (en) 1976-04-22
ZA754327B (en) 1977-02-23
CA1069835A (en) 1980-01-15
ES439138A1 (en) 1977-06-01
IT1040808B (en) 1979-12-20
JPS6012886B2 (en) 1985-04-04
FR2276861A1 (en) 1976-01-30
FR2276861B1 (en) 1977-07-08
JPS5133361A (en) 1976-03-22
AU8258375A (en) 1977-01-20
DE2528220A1 (en) 1976-01-22
BR7504216A (en) 1976-05-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429K Case decided by the comptroller ** application refused (sect. 29/1949)
429L Application made to the patents court (sect. 29/1949)
429F Application made to the patents court ** appeal dismissed (sect. 29/1949)
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SPA Amended specification published
PE20 Patent expired after termination of 20 years

Effective date: 19950701