Patent SG-11202000275P-A (SG)
Title: Sub-block sealing for electrochemical separation devices
Inventor: MUSE MICHAEL
IPC: B01D61/48
Filed: 2018-07-11
Abstract: International Patent Classification: BOlD 61/48 (2006.01) CO2F 1/469 (2006.01) BOlD 61/50 (2006.01) (21) International Application Number: PCT/US2018/041553 (22) International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 62/531,030 11 July 2017 (11.07.2017) US (71) Applicant: EVOQUA WATER TECHNOLOGIES LLC [US/US]; 210 SIXTH AVENUE, SUITE 3300, PIT- TSBURGH, Pennsylvania 01851 (US). 11 July 2018 (11.07.2018) English English (72) Inventors: MUSE, Michael; 206 PEARL STREET, SOMERVILLE, Massachusetts 02145 (US). SHAW, Michael J.; 6 PINGREE HILL ROAD, DERRY, New Hampshire 03038 (US). GRIFFIS, Joshua; 20 WHITNEY DRIVE, ASHBURNHAM, Massachusetts 01430 (US). DUKES, Simon Paul; 10 WIGGIN STREET, CHELMS- FORD, Massachusetts 01824 (US). LIANG, Li-Shiang; 258 BOLTON ROAD, HARVARD, Massachusetts 01451 (US). (74) Agent: WILKINS, Frederick C.; 10 TECHNOLOGY DRIVE, LOWELL, Massachusetts 01851 (US). (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, (54) Title: SUB-BLOCK SEALING FOR ELECTROCHEMICAL SEPARATION DEVICES (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) vitivio VIII oviolo Ho 01110111 Immo Hs (19) World Intellectual Property Organization International Bureau (10) International Publication Number WO 2019/014297 Al (43) International Publication Date 17 January 2019 (17.01.2019) WIPO I PCT FIG. 3 1-1 N C\ O 1 - 1 C\ O 1-1 C•1 O (57) : An electrochemical separation device includes a first electrode, a second electrode, and a cell stack including a plurality of sub-blocks each having alternating depleting compartments and concentrating compartments and each including frame and channel portions disposed between the first electrode and the second electrode. An internal seal foiined of a first material is disposed between and in contact with the channel portions between adjacent sub-blocks in the cell stack and configured to prevent leakage between depleting compartments and concentrating compartments in the adjacent sub-blocks. An external seal foiined of a second material having at least one material parameter different from the first material is disposed between and in contact with the frames of the adjacent sub-blocks in the cell stack and configured to prevent leakage from an internal volume of the electrochemical separation device to outside of the electrochemical separation device. [Continued on next page] WO 2019/014297 Al MIDEDIMOMOIDEIROMOIONIMMIEDIRDERVOIMIE 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. (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)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))