Patent SG-11201806305T-A (SG)
Title: Anti-two-block sensing systems
Inventor: WILLIAMS TIMOTHY
IPC: B66C23/88
Filed: 2017-01-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/132086 Al 3 August 2017 (03.08.2017) WIPO I PCT 111111111111110111011111111111010111110 011101110101111111011111111111111110111111 (51) International Patent Classification: B66C 23/88 (2006.01) B66C 15/04 (2006.01) B66C 23/36 (2006.01) (21) International Application Number: PCT/US2017/014525 (22) International Filing Date: 23 January 2017 (23.01.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/011,267 29 January 2016 (29.01.2016) US (71) Applicant: KEPPEL LE TOURNEAU USA, INC. [US/US]; 3110 H.G. Mosley Parkway, Longview, TX 75605 (US). (72) Inventors: WILLIAMS, Timothy; 3110 H.G. Mosley Parkway, Longview, TX 75605 (US). SAKER, Timothy; 3110 H.G. Mosley Parkway, Longview, TX 75605 (US). (74) Agents: KOFFS, Steven E. et al.; Duane Morris LLP, 30 South 17th Street, Philadelphia, PA 19103 (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, 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. (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). Published: — with international search report (Art. 21(3)) (54) Title: ANTI-TWO-BLOCK SENSING SYSTEMS W O 20 17 / 13 2086 Al (57) : Various hoisting systems with anti-two-block sensing devices are provided. In one embodiment, an apparatus includes a crane having a hoisting line and an anti- two-block sensing device installed about the hoist- ing line. The anti-two-block sensing device includes an upper chandelier, a lower trigger assembly suspended from the upper chandelier, and a detector positioned to detect movement of the lower trigger assembly with respect to the upper chandelier. The lower trigger assembly can include two plates each having a hoisting line aperture and a slot that allows transverse installation of the plate about the hoisting line. Further, the two plates can be positioned such that their slots are offset from one another and the plates cooperate to fully surround the hoisting line. Additional systems, devices, and methods are also disclosed.