Patent SG-11201407899X-A (SG)
Title: Dredging head of a trailing hopper dredger and method for dredging by means of said dredging head
Inventor: TACK BRUNO
IPC: E02F3/92
Filed: 2013-05-23
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 28 November 2013 (28.11.2013) WIPOIPCT (10) International Publication Number WO 2013/174932 A1 (51) International Patent Classification: E02F 3/92 (2006.01) (21) International Application Number: PCT/EP2013/060638 (22) International Filing Date: 23 May 2013 (23.05.2013) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 2012/0351 25 May 2012 (25.05.2012) BE (71) Applicant: BAGGERWERKEN DECLOEDT EN ZOON [—/BE]; Slijkensesteenweg 2, B-8400 Oostende (BE). (72) Inventor: TACK, Bruno; Vrijestraat 10, B9960 Assenede (BE). (74) Agent: BROUWER, Hendrik, Rogier; Patentwerk B.V., P.O. Box 1514, NL-5200 BN 's-Hertogenbosch (NL). [Continued on next page] (54) Title: DREDGING HEAD OF A TRAILING HOPPER DREDGER AND METHOD FOR DREDGING BY MEANS OF SAID DREDGING HEAD (57) Abstract: The invention relates to a dredging head (6) of a trailing hopper dredger (1) which configured is to move in a direction of move­ ment P. The dredging head (6) comprises a tubular construction (7) which can be attached to a suction line (3) and visor a (9) which is ro - tatable with respect to the tubular construction (7) and has a suction opening which directed is to the bottom for sucking in the bed material. The dredging head (6) further comprises crushing device a (12a, 12b, 16, 17, 18) for crushing material which is present in the dredging head (6). By means of the dredging head, it is possible to efficiently dredge bed material and in particular bed material containing rocks. The inven­ tion also relates to a dredging vessel equipped with the dredging head, and to a method for dredging a bed containing rocks. (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). WO 2013/174932 A11 lllll llllllll II llllll III lllll lllll lllll III III III lllll lllll llll llll lllll lllll lllllll llll llll Published: — with international search report (Art. 21(3))