GB1170442A - Filters for Gases - Google Patents
Filters for GasesInfo
- 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
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.
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)
| 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 |
-
1966
- 1966-02-11 GB GB616966A patent/GB1170442A/en not_active Expired
Cited By (4)
| 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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