GB858313A - Improvements in or relating to filtration elements and methods of making the same - Google Patents
Improvements in or relating to filtration elements and methods of making the sameInfo
- Publication number
- GB858313A GB858313A GB13422/57A GB1342257A GB858313A GB 858313 A GB858313 A GB 858313A GB 13422/57 A GB13422/57 A GB 13422/57A GB 1342257 A GB1342257 A GB 1342257A GB 858313 A GB858313 A GB 858313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cartridge
- outside
- solution
- resin
- pulp
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/005—Making filter elements not provided for elsewhere
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Filtering Materials (AREA)
Abstract
In making a tubular filter cartridge, cellulosic fibres are pulped in a liquid containing between 85 and 75% by volume of a non-polar organic liquid, e.g. methyl or isopropyl alcohol or ethylene glycol, and between 15 and 25% of water, to form a pulp containing between 2 and 6% of fibres, computed on their dry weight, and the pulp is diluted with more liquid until it contains between 0,3 and 0,8% of fibres and is then vacuum-felted on a foraminous tubular former, e.g. by applying suction to the interior of the tubular former immersed in the diluted pulp. The cartridge is dried, preferably by withdrawing heated air through it from the outside to the inside. If necessary, its outer surface is trimmed. The cartridge is impregnated with a solution of a resin, as by withdrawing the solution through it from the outside to the inside. The resin solution may be a solution of melamine-, phenol- or ureaformaldehyde resin or polyvinyl chloride in aqueous isopropyl alcohol. Excess resin is removed from the cartridge by drawing warm air through it from the outside to the inside. The cartridge is then dried and cured by forcing hot air through it from the inside to the outside. Curing may be completed in an oven. The cured cartridge may be trimmed to a desired size. Specification 677,515 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US858313XA | 1956-07-06 | 1956-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB858313A true GB858313A (en) | 1961-01-11 |
Family
ID=22194222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13422/57A Expired GB858313A (en) | 1956-07-06 | 1957-04-26 | Improvements in or relating to filtration elements and methods of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB858313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2154461A (en) * | 1984-02-03 | 1985-09-11 | Helmut Schafft | Filter element, method of production and use |
-
1957
- 1957-04-26 GB GB13422/57A patent/GB858313A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2154461A (en) * | 1984-02-03 | 1985-09-11 | Helmut Schafft | Filter element, method of production and use |
| US4925570A (en) * | 1984-02-03 | 1990-05-15 | Helmut Schafft | Method of filtering |
| US4986913A (en) * | 1984-02-03 | 1991-01-22 | Helmut Schafft | Filter pad |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATA1017874A (en) | METHOD FOR THE PRODUCTION OF FIBER FABRIC WITH HIGH CONTENTS OF DRY SUBSTANCE, FOR THE PRODUCTION OF WOOD FIBER PANELS | |
| GB858313A (en) | Improvements in or relating to filtration elements and methods of making the same | |
| GB1093303A (en) | Method of making a filter for cigarettes | |
| GB795841A (en) | Lipstick | |
| SE8007297L (en) | TOWARD TREATMENT OF WOOD | |
| GB709179A (en) | Improvements in reconditioning used photographic developer solutions | |
| GB479508A (en) | Improvements in or relating to artificial thermoplastic materials | |
| AT241639B (en) | Method of manufacturing a dry electrolytic capacitor | |
| SE7514396L (en) | PROCEDURE FOR IMPREGNATION AND DRYING OF MATERIAL AND DEVICE FOR IMPLEMENTING THIS PROCEDURE | |
| CH479771A (en) | Process for the production of a fibrous, liquid-absorbent cellulosic sheet material | |
| GB925406A (en) | Impregnated and/or coated cloth, filaments, or fibers | |
| GB1109834A (en) | Improvements in the manufacture of woven fabrics suitable for the production of flexible transmission means | |
| GB874072A (en) | Improvements in or relating to the moulding of fibrous material coated and/or impregnated with plaster | |
| ES404124A1 (en) | Procedure for the impregnation of wood and wood materials. (Machine-translation by Google Translate, not legally binding) | |
| GB487041A (en) | Process for the treatment of wood | |
| SU108938A1 (en) | Thermal insulation material based on plant matter | |
| GB559225A (en) | Buoyant material | |
| GB564583A (en) | Improvements in and relating to the parchmentisation and vulcanisation of cellulose fibres | |
| ES305726A1 (en) | Procedure for the treatment of textiles containing total or predominantly natural fibers and-or regenerated of cellulose, to ensure their dry and wet inhalability. (Machine-translation by Google Translate, not legally binding) | |
| CH422160A (en) | Method of manufacturing a dry electrolytic capacitor | |
| GB979261A (en) | Improvements in or relating to the treatment of polyurethane | |
| ES281167A3 (en) | Procedure for the manufacture of cleaning cloths (Machine-translation by Google Translate, not legally binding) | |
| GB601432A (en) | Improvements in and relating to the manufacture of wooden rods, more particularly fishing rods, ski sticks, and the like | |
| GB812572A (en) | Production of decorated melamine resin mouldings | |
| GB787674A (en) | Finishing of synthetic fibre fabrics |