Patent SG-11201908877V-A (SG)
Title: Water filter
Inventor: HOLMEN KRISTIAN
IPC: C02F1/00
Filed: 2018-03-23
Abstract: 28 X 220a 16 14 32 Fig. I a 2 z 1-1 O \ co co 00 O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 18 October 2018 (18.10.2018) W I PO I PCT IiiimmomiolollmonolomolimioallommovoimIE (10) International Publication Number WO 2018/188934 Al (51) International Patent Classification: CO2F 1/00 (2006.01) BOlD 29/68 (2006.01) BOlD 29/23 (2006.01) CO2F 103/00 (2006.01) (21) International Application Number: PCT/EP2018/057516 (22) International Filing Date: 23 March 2018 (23.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17165983.2 11 April 2017 (11.04.2017) EP (71) Applicant: MOSSHYDRO AS [NO/NO]; Nedre Storgate 46, 3015 DRAMMEN (NO). (72) Inventors: HOLMEN, Kristian; Vivre Bastad vei 37, 1387 Asker (NO). HOLMEN, Svein; Granbakken 7, 1519 Moss (NO). (74) Agent: AWA SWEDEN AB; Box 11394, 404 28 GOTE- BORG (SE). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: WATER FILTER (57) : The present invention relates to a filter arrangement (1) comprising: a chamber (12) comprising a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element (2) having a longitudinal extension arranged inside of said chamber (12), wherein said filter element (2) comprises a se- mi-permeable filtration wall (22) comprising a folded filter (24) arranged in a zig-zag configuration between an inner perforated cylin- der (26) and an outer perforated cylinder (28) and an internally located back- washing arrangement (3). The back-washing arrangement (3) comprises: an elongated and hollow body (32) having a longitudinal extension, which is substantially parallel to the longitudinal extension of the filter element (2), a mechanism configured to drive said body (32) in a rotational and/or an axial movement, a plurality of nozzles (34) arranged in fluid communication with a cavity inside of said body (32), said plurality of nozzles (34) projecting laterally from said body (32) such that a distal end (36) of each of said plurality of nozzles (34) is arranged in close proximity to said inner perforated cylinder (26) and an outlet (320) arranged in fluid communication with said cavity of said elongated and hollow body and [Continued on next page] WO 2018/188934 Al MIDEDIMOMOIDEIREEMOMMHEINOMMEEN (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) Published: — with international search report (Art. 21(3)) wherein said plurality of nozzles (34) are arranged parallel to each other along a straight line on said body (32) such that they all project in the same direction.