BRPI0601295A - elemento de filtração que apresenta uma parede lateral de densidade variável - Google Patents

elemento de filtração que apresenta uma parede lateral de densidade variável

Info

Publication number
BRPI0601295A
BRPI0601295A BRPI0601295-7A BRPI0601295A BRPI0601295A BR PI0601295 A BRPI0601295 A BR PI0601295A BR PI0601295 A BRPI0601295 A BR PI0601295A BR PI0601295 A BRPI0601295 A BR PI0601295A
Authority
BR
Brazil
Prior art keywords
filaments
variable density
filtration element
thickness
liquid flow
Prior art date
Application number
BRPI0601295-7A
Other languages
English (en)
Portuguese (pt)
Inventor
Howard William Morgan
Original Assignee
Howard William Morgan
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 Howard William Morgan filed Critical Howard William Morgan
Publication of BRPI0601295A publication Critical patent/BRPI0601295A/pt

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)
BRPI0601295-7A 2005-04-19 2006-04-19 elemento de filtração que apresenta uma parede lateral de densidade variável BRPI0601295A (pt)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
BRPI0601295A true BRPI0601295A (pt) 2006-12-19

Family

ID=37107480

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0601295-7A BRPI0601295A (pt) 2005-04-19 2006-04-19 elemento de filtração que apresenta uma parede lateral de densidade variável

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
JP2006297388A (ja) 2006-11-02
CA2544039A1 (en) 2006-10-19
US20060231486A1 (en) 2006-10-19

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.