CA2544039A1 - Filtration element having a variable density sidewall - Google Patents

Filtration element having a variable density sidewall Download PDF

Info

Publication number
CA2544039A1
CA2544039A1 CA002544039A CA2544039A CA2544039A1 CA 2544039 A1 CA2544039 A1 CA 2544039A1 CA 002544039 A CA002544039 A CA 002544039A CA 2544039 A CA2544039 A CA 2544039A CA 2544039 A1 CA2544039 A1 CA 2544039A1
Authority
CA
Canada
Prior art keywords
strands
thickness
filtration element
sidewall part
bag
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.)
Abandoned
Application number
CA002544039A
Other languages
English (en)
French (fr)
Inventor
Howard William Morgan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2544039A1 publication Critical patent/CA2544039A1/en
Abandoned 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
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • 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
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/30—Porosity of filtering material
    • B01D2275/305—Porosity decreasing in flow direction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
CA002544039A 2005-04-19 2006-04-19 Filtration element having a variable density sidewall Abandoned CA2544039A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US67289405P 2005-04-19 2005-04-19
US60/672,894 2005-04-19
US11/255,584 2005-10-21
US11/255,584 US20060231486A1 (en) 2005-04-19 2005-10-21 Filtration element having a variable density sidewall

Publications (1)

Publication Number Publication Date
CA2544039A1 true CA2544039A1 (en) 2006-10-19

Family

ID=37107480

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002544039A Abandoned CA2544039A1 (en) 2005-04-19 2006-04-19 Filtration element having a variable density sidewall

Country Status (4)

Country Link
US (1) US20060231486A1 (enExample)
JP (1) JP2006297388A (enExample)
BR (1) BRPI0601295A (enExample)
CA (1) CA2544039A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10183243B2 (en) * 2015-07-08 2019-01-22 Filter Safe Ltd Micronic automatic filter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL51212A (en) * 1976-01-14 1980-03-31 Pall Corp Filter elements and process for their continuous production by laydown of thermoplastic fibers on a preformed core to form a nonwoven cylindrical web
US4594202A (en) * 1984-01-06 1986-06-10 Pall Corporation Method of making cylindrical fibrous filter structures
JPH0798131B2 (ja) * 1991-03-15 1995-10-25 チッソ株式会社 筒状フィルター及びその製造方法
JPH08309124A (ja) * 1995-05-12 1996-11-26 Toyobo Co Ltd 円筒型フィルター濾材およびその製造法
JPH1136169A (ja) * 1997-07-15 1999-02-09 Tounen Tapirusu Kk メルトブロー不織布の製造方法及びメルトブロー不織布からなる円筒状フィルター
JPH11156125A (ja) * 1997-12-01 1999-06-15 Roki Techno Co Ltd デプス型フイルター
JP3802839B2 (ja) * 2002-05-24 2006-07-26 呉羽テック株式会社 フィルター用不織布及びエンジン用フィルター

Also Published As

Publication number Publication date
BRPI0601295A (pt) 2006-12-19
JP2006297388A (ja) 2006-11-02
US20060231486A1 (en) 2006-10-19

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead

Effective date: 20130419