Patent SG-11201407547S-A (SG)
Title: Dissolved air flotations system with energy recovery devices
Inventor: OKLEJAS ELI JR
IPC: F04D31/00
Filed: 2013-05-14
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 21 November 2013 (21.11.2013) WIPOIPCT (10) International Publication Number WO 2013/173257 A4 (51) International Patent Classification: B03D 1/02 (2006.01) B01F 5/16 (2006.01) B03D 1/14 (2006.01) B01F 3/04 (2006.01) B03D 1/24 (2006.01) F04D 7/04 (2006.01) C02F1/24 (2006.01) F04D 31/00 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/040830 14 May 2013 (14.05.2013) English English (30) Priority Data: 61/646,958 13/892,746 15 May 2012 (15.05.2012) US 13 May 2013 (13.05.2013) US (71) Applicant: FLUID EQUIPMENT DEVELOPMENT COMPANY, LLC [US/US]; 800 Ternes Drive, Monroe, Michigan 48162 (US). (72) Inventor: OKLEJAS, Eli, Jr.; 4750 Burke Road, New­ port, Michigan 48166 (US). (74) Agents: MIERZWA, Kevin et al.; Harness, Dickey & Pierce, P.L.C., P.O. Box 828, Bloomfield Hills, Michigan 48303 (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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, 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(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) [Continued on next page] (54) Title: DISSOLVED AIR FLOTATIONS SYSTEM WITH ENERGY RECOVERY DEVICES •t l> CJ m i> ' — VFD Motor (57) Abstract: A system and method of oper­ ating the same includes an absorption tank having a compressor communicating gas thereto, a suspended solid filtration tank hav­ ing a primary inlet, a secondary inlet, a primary outlet and a secondary outlet and a pump comprising a pump inlet coupled to the secondary outlet and a pump outlet commu­ nicating fluid to the absorption tank. The ab­ sorption tank forms a solution from the fluid and gas. A turbine mechanically couples the pump with common a shaft extending to the pump. The turbine has a turbine inlet coupled to the absorption tank and a turbine outlet coupled to the secondary inlet. The turbine depressurizes the solution. The system may also use a centrifugal pump in place of a tur­ bine and absorption tank. 224 220 FIG. 2 WO 2013/173257 A4 I lllll llllllll II llllll III lllll lllll III III III lllll lllll lllll lllll lllll llll lllllll llll llll llll Published: — with international search report (Art. 21(3)) — with amended claims and statement (Art. 19(1)) (88) Date of publication of the international search report: 20 March 2014 Date of publication of the amended claims and statement: 8 May 2014