IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0855746
(1986-03-03)
|
우선권정보 |
FR-0011801 (1984-07-25) |
국제출원번호 |
PCT/FR85/00203
(1985-07-24)
|
§371/§102 date |
19860303
(19860303)
|
국제공개번호 |
WO-8600822
(1986-02-13)
|
발명자
/ 주소 |
- Lhuillier Robert (Longpont Sur Orge PA FRX) Selesnick Michael (Nextown PA) Vieville Jean (Antony FRX) Wolfe John (Flancourt Catelon FRX)
|
출원인 / 주소 |
- A.R.E. S.A.R.L. (Massy FRX 03)
|
인용정보 |
피인용 횟수 :
11 인용 특허 :
0 |
초록
▼
A filter cartridge of the type made from a sheet of filter paper pleated as an accordion on a cylindrical surface. It is produced by pinching pairs of contiguous pleats at various levels in order to make on the outer surface of the cartridge a plurality of honeycombs. The invention results in substa
A filter cartridge of the type made from a sheet of filter paper pleated as an accordion on a cylindrical surface. It is produced by pinching pairs of contiguous pleats at various levels in order to make on the outer surface of the cartridge a plurality of honeycombs. The invention results in substantially prolonged life of the filter cartridges, which have applications in a variety of uses, including regeneration of solvents of washing baths for dry cleaning machines, filtration of air for internal combustion engines and water filtration.
대표청구항
▼
A method of manufacturing a filter (1) from a sheet (3) of filter material (5), constituted in particular by resin-impregnated paper fibers, the method which is intended to increase the efficiency and the lifetime of the filter (1) by increasing and by distributing its filtering surface area consist
A method of manufacturing a filter (1) from a sheet (3) of filter material (5), constituted in particular by resin-impregnated paper fibers, the method which is intended to increase the efficiency and the lifetime of the filter (1) by increasing and by distributing its filtering surface area consists in particular: in shaping the sheet (3) concertina-like (7) in a series of folds (9, 10, 11, 12, 13, etc. . . ) which are parallel to a common “folding”direction (x1, x′1) and which are of equal depth; in holding said concertina (7) by its side edges outside the folds (9, 10, 11, 12, 13, . . . ) in two end supports in such a manner as to constitute a filter (1) having an outer face (E) via which it is intended to receive the fluid to be filtered (along f), for passing through the sheet (3), and an inner face (I) via which the fluid is to leave after passing through the sheet (3); and in providing at least a minimum separation between at least some portions of adjacent outer folds (9, 10, 11, 12, 13, . . . ); said method being characterized by the following combination: firstly at least two adjacent folds (9, 10), (11, 12), (13, 14) of the outer face are clamped together at at least two levels (p1, p2, p3) at different heights along the sheet (3) in the “folding”direction (x1, x′1) said at least two adjacent folds (9, 10), (11, 12), (13, 14) thus providing facing intermediate portions situated between two clamping points; and secondly said two intermediate portions between said clamping points said at least two adjacent folds (9, 10), (11, 12), (13, 14) are separated so as to provide at least one honeycomb cell (21) in the outer face (E) of the filter (1) between said at least two adjacent folds (9, 10), (11, 12), (13, 14).
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