GB1170442A - Filters for Gases - Google Patents

Filters for Gases

Info

Publication number
GB1170442A
GB1170442A GB616966A GB616966A GB1170442A GB 1170442 A GB1170442 A GB 1170442A GB 616966 A GB616966 A GB 616966A GB 616966 A GB616966 A GB 616966A GB 1170442 A GB1170442 A GB 1170442A
Authority
GB
United Kingdom
Prior art keywords
batt
charges
wool
fibres
develop
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
GB616966A
Inventor
Peter William Stripp
Ludwig Rosenfeld
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.)
Tecalemit Engineering Ltd
Original Assignee
Tecalemit Engineering 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 Tecalemit Engineering Ltd filed Critical Tecalemit Engineering Ltd
Priority to GB616966A priority Critical patent/GB1170442A/en
Publication of GB1170442A publication Critical patent/GB1170442A/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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

1,170,442. Air filter. TECALEMIT (ENG.) Ltd. 10 Feb., 1967 [11 Feb., 1966], No. 6169/66. Heading B1T. [Also in Divisions B5 and Dl] An air filter element comprises fibres of Merino wool and of a copolymer of vinyl chloride and acrylonitrile, and powdered paratertiary-butyl-phenol-formaldehyde, and is treated to develop electrostatic charges to assist filtration. The constituents may be incorporated in a single layer, but in Fig. 1 (not shown) the wool and powder form a batt (8) which is sandwiched between batts (9, 10) of copolymer, and batts (9, 10) are backed by scrims (11, 12). The layers are bonded to form a peripheral lip (6), which is retained between two parts of a filter housing for an I.C. engine intake. In manufacture (Fig. 2, not shown), the powder is added to the fibres (wool or mixture) in or after a carding machine (15) which forms the batt, and the batt passes between corrugated rollers driven at speeds which vary out of phase, or between reciprocating platens, which moves the fibres relatively to develop the charges. Acrylic resin may then be applied as a liquid or vapour, which acts as bonding agent and helps the batt to retain its charges. Passage of air in use may develop further charges.
GB616966A 1966-02-11 1966-02-11 Filters for Gases Expired GB1170442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB616966A GB1170442A (en) 1966-02-11 1966-02-11 Filters for Gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB616966A GB1170442A (en) 1966-02-11 1966-02-11 Filters for Gases

Publications (1)

Publication Number Publication Date
GB1170442A true GB1170442A (en) 1969-11-12

Family

ID=9809677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB616966A Expired GB1170442A (en) 1966-02-11 1966-02-11 Filters for Gases

Country Status (1)

Country Link
GB (1) GB1170442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149686A (en) * 1983-10-26 1985-06-19 Ti Domestic Appliances Ltd Gas filters and apparatus
GB2242142A (en) * 1990-03-19 1991-09-25 Wheway Plc Filter
EP0718011A1 (en) * 1994-12-21 1996-06-26 Kwangyeon Lee Wool filter for dustproof mask and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149686A (en) * 1983-10-26 1985-06-19 Ti Domestic Appliances Ltd Gas filters and apparatus
GB2242142A (en) * 1990-03-19 1991-09-25 Wheway Plc Filter
GB2242142B (en) * 1990-03-19 1993-05-05 Wheway Plc Filter
EP0718011A1 (en) * 1994-12-21 1996-06-26 Kwangyeon Lee Wool filter for dustproof mask and manufacturing method thereof

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