ZA935518B - Improved filter - Google Patents

Improved filter

Info

Publication number
ZA935518B
ZA935518B ZA935518A ZA935518A ZA935518B ZA 935518 B ZA935518 B ZA 935518B ZA 935518 A ZA935518 A ZA 935518A ZA 935518 A ZA935518 A ZA 935518A ZA 935518 B ZA935518 B ZA 935518B
Authority
ZA
South Africa
Prior art keywords
improved filter
filter
improved
Prior art date
Application number
ZA935518A
Inventor
George Forde
Original Assignee
E V E Holdings Limited
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 E V E Holdings Limited filed Critical E V E Holdings Limited
Publication of ZA935518B publication Critical patent/ZA935518B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic 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
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets
    • B03C3/30—Plant or installations without electricity supply, e.g. using electrets in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0464—Impregnants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
ZA935518A 1992-07-30 1993-07-30 Improved filter ZA935518B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE922503 1992-07-30

Publications (1)

Publication Number Publication Date
ZA935518B true ZA935518B (en) 1994-02-24

Family

ID=11039716

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA935518A ZA935518B (en) 1992-07-30 1993-07-30 Improved filter

Country Status (4)

Country Link
EP (1) EP0656816A1 (en)
AU (1) AU4581493A (en)
WO (1) WO1994003276A1 (en)
ZA (1) ZA935518B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502891C2 (en) * 1994-06-07 1996-02-12 Freshman Ab Apparatus for separating extremely fine particles from air
DE19856490B4 (en) * 1998-12-08 2006-01-12 Carl Freudenberg Kg Device for cleaning the air from dust particles, in particular pollen dust and the like
FI119280B (en) 2006-05-18 2008-09-30 Valtion Teknillinen Filter and new methods
CN105195325B (en) * 2014-06-03 2018-06-19 中国人民大学 Application of the lithium niobate pyroelectricity material based on temperature regulation and control in Atmospheric particulates are adsorbed
EP3804550A1 (en) * 2016-08-26 2021-04-14 Livinguard AG Wash-durable face mask with antimicrobial properties and/or improved washability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374938A1 (en) * 1976-12-21 1978-07-21 Marret Yves Electrostatic action filter for dust-laden air - includes woven filter meshes with material that is charged by air friction
US4944854A (en) * 1983-11-08 1990-07-31 Celanese Corporation Electret process and products
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter
US5037455A (en) * 1990-09-14 1991-08-06 The Great American Filter Company Air filter

Also Published As

Publication number Publication date
EP0656816A1 (en) 1995-06-14
WO1994003276A1 (en) 1994-02-17
AU4581493A (en) 1994-03-03

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