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Machine translation
1. (WO2002005924) FILTER CARTRIDGES WITH PLEATED FILTER MEDIA
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/005924    International Application No.:    PCT/US2001/022052
Publication Date: 24.01.2002 International Filing Date: 13.07.2001
Chapter 2 Demand Filed:    12.02.2002    
IPC:
B01D 63/06 (2006.01), B01D 69/10 (2006.01), B01D 71/36 (2006.01)
Applicants: PALL CORPORATION [US/US]; 2200 Northern Blvd., East HILLS, NY 11548 (US) (For All Designated States Except US).
ROBILLARD, Norman, F. [US/US]; (US) (For US Only)
Inventors: ROBILLARD, Norman, F.; (US)
Agent: DAVIDSON, Bryan, H.; Nixon & Vanderhye P.C., 8th Floor, 1100 North Glebe Road, Arlington, VA 22201-4714 (US)
Priority Data:
09/616,066 13.07.2000 US
Title (EN) FILTER CARTRIDGES WITH PLEATED FILTER MEDIA
(FR) CARTOUCHES FILTRANTES DOTEES D'ELEMENTS FILTRANTS PLISSES
Abstract: front page image
(EN)Filter cartridges (10) include a pleated multi-layer filter media (16) having a filtration membrane layer (16a), and a structural support layer (16b) for the membrane layer (16a) which is in the form of an expanded polymeric film mesh. Most preferably, the membrane layer (16a) and the expanded polymeric film support layer (16b) are each formed of a fluoropolymer, most preferably PTFE. The preferred expanded polymeric film support layer (16b) is in the form of a relatively open mesh structure having generally diamond-shaped apertures (20). Improved flow rate characteristics through pleated filter media (16) ensue when diamond-shaped apertures (20) of the mesh (16b) are oriented such that the long dimensions (LD) thereof are substantially transverse to the elongate pleat axis of the pleated filter medium (16) in which the mesh (16b) is employed.
(FR)Des cartouches filtrantes (10) comprennent des éléments filtrants multicouches plissés (16) pourvus d'une couche membraneuse de filtration (16a) et d'une couche de support structurelle (16b) de la couche membraneuse (16a) qui présente la forme d'un treillis en film polymère expansé. De préférence, la couche membraneuse (16a) et ladite couche de support du film polymère (16b) sont constituées d'un polymère fluoré, notamment du polytétrafluoroéthylène (PTFE). La couche de support de film polymère expansée préférée (16b) présente une structure de treillis relativement ouverte munie d'ouvertures en forme de diamant (20). On obtient des caractéristiques de débit amélioré à travers les éléments filtrants plissés (16), lorsque les ouvertures (20) du treillis (16b) sont orientées, de manière que les dimensions longitudinales correspondantes sont pratiquement transversales à l'axe de pli allongé de l'élément filtrant plissé (16) dans lequel le treillis (16b) est utilisé.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)