EP0063202A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Filtering cartridge for fluid filtering systems, in particular gaseous fluid filtering systems
Assignee: Individual
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Filing: 1981-09-29
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Granted: —
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Expires: 2001-09-29
Abstract
Abstract The filtering cartridge structure comprises a filtering septum formed by a thin central filtering member (4) including three layers glued one to another by lamination, the intermediate layer (17) thereof consists of two microfibres bound by a binding material, the other two layers (18, 19) being formed by polyester resin fibres, sealed or welded one to another by hot calendering. The mouth (2) and bottom portions (1) portions are coupled to one another by means of a coupling (13) or fixing member and the bottom portion is devoid of any counterdrawn portions in order to prevent condensate from accumulating. Two filtering septum supporting walls (8, 9) are located concentrically with respect to the two sides of the filtering septum and are formed by means of a simple sealing or welding operation, without using further fixing means.
Inventors
- 👤 Aldo Bea
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:23
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2411; B01D29/00; B01D29/11; B01D29/111; B01D29/13; B01D29/15; B01D29/50; B01D29/56; B01D29/58; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D39/163; B01D39/20; B01D39/2003; B01D39/2017; B01D39/2024; B01D2101/00; B01D2101/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
1- A filtering cartridge for filtering fluids,in particular gaseous fluids,provided with a mouth portion and a bottom portion, characterized in that it comprises a filtering septum formed by a central thin filtering member including three mutually glued layers, the intermediate layer thereof consists of microfibres held together by a binding material and the two outer layers thereof consist of synthetic or the like fibres loosely located and hot sealed together,two continuous septum supporting permeable walls,fixing means for mutually fixing said mouth and bottom portions,said bottom portion being free of counterdrawn portions in such a way as to prevent condensate from accumulating.
Claim 2
Dependent Claim
101 words
1- A filtering cartridge for filtering fluids,in particular gaseous fluids,provided with a mouth portion and a bottom portion, characterized in that it comprises a filtering septum formed by a central thin filtering member including three mutually glued layers, the intermediate layer thereof consists of microfibres held together by a binding material and the two outer layers thereof consist of synthetic or the like fibres loosely located and hot sealed together,two continuous septum supporting permeable walls,fixing means for mutually fixing said mouth and bottom portions,said bottom portion being free of counterdrawn portions in such a way as to prevent condensate from accumulating.
Claim 3
Dependent Claim
70 words
2- A filtering cartridge according to claim 1, characterized in that the intermediate layer of said filtering member consists of glass microfibres,held together by a binding material in such a way as to form a fiberglass cushion member and in that said outer layers of said filtering member consist of polyester resin fibres as loosely arranged and hot sealed and then calandered,said three layers being successively firmly glued by lamination.
Claim 4
Dependent Claim
29 words
3- A filtering cartridge according to claims 1 and 2, characterized in that said filtering septum comprises two further prefiltering layers,one at each side of said central filtering member.
Claim 5
Dependent Claim
40 words
4- A filtering cartridge according to claim l, characterized in that said septum supporting permeable walls are formed by sealing or welding the facing flaps in such a way as to be continuous during the assemblying on said filtering septum.
Claim 6
Dependent Claim
41 words
5- A filtering cartridge according to the preceding claime, characterized in that said mouth and bottom portion fixing means consist of a perforated central tubular member effective to held said two members together by sealing or welding said tubular member thereto.
Claim 7
Dependent Claim
38 words
6- A filtering cartridge according to the preceding claims,Characterized in that said bottom portion is provided with a central rised flat circular portion effective to fit a sealing gasket,the peripheral surface of said bottom portion being also flattened.
Claim 8
Dependent Claim
27 words
7- A filtering cartridge according to the preceding claims, characterized in that the fluid to be filtered inlet mouth is provided with one or more sealing gaskets.
Claim 9
Dependent Claim
19 words
8- A filtering cartridge according to the preceding claims and substantially as described and shown in the accompanying drawings.
References Cited (Backward Citations)
GB1345155A
Cited
GB2017530A
Cited
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