Patent SG-11201909276P-A (SG)
Title: Self-limiting c-ring system and method
Inventor: ZHU BAOZHI
IPC: F16L37/088
Filed: 2018-04-25
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 01 November 2018 (01.11.2018) WIPO Iiiimmolimionotiomiolonliolloollmomovoimill (10) International Publication Number WO 2018/200601 Al PCT 1-1 1-1 O O O 00 1-1 O C (51) International Patent Classification: E21B 17/02 (2006.01) F16L 37/088 (2006.01) (21) International Application Number: PCT/US2018/029239 (22) International Filing Date: 25 April 2018 (25.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/496,949 25 April 2017 (25.04.2017) US (71) Applicant: VETCO GRAY INC. [US/US]; 4424 West Sam Houston Pkwy North, Suite 1200, Houston, TX 77041 (US). (72) Inventors: ZHU, Baozhi; 4424 West Sam Houston Park- way North, Houston, TX 77041 (US). MCELMUR- RY, Luke, Andrew; 4424 West Sam Houston Parkway North, Suite 100, Houston, TX 77041 (US). BARNHART, Daniel; 4424 West Sam Houston Parkway North, Suite 100, Houston, TX 77041 (US). FORD, David, L.; 4424 West Sam Houston Parkway North, Suite 100, Houston, TX 77041 (US). DUNN, Gregory, Matthew; 4424 West Sam Houston Parkway North, Suite 100, Houston, TX 77041 (US). (74) Agent: DOMBROWSKI, Joanna, M. et al.; General Elec- tric Company, Global Patent Operation, 901 Main Avenue, 3rd Floor, Norwalk, CT 06851 (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, 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, = (54) Title: SELF-LIMITING C-RING SYSTEM AND METHOD FIG.5 (57) : Embodiments of the present disclosure include an apparatus for forming a tubular fitting includes an annular body having an axial height and radial thickness. The apparatus also includes an inner ami forming at least a portion of the annular body, the inner arm positioned at a first end of the annular body with an inner arm thickness that is less than the radial thickness. The apparatus includes an outer arm forming at least a portion of the annular body, the outer arm positioned at a second end of the annular body with an outer arm thickness that is less than the radial thickness. Also, the apparatus includes one or more self-liniiiing features that control movement of the inner arm and the outer arm relative to one another. [Continued on next page] WO 2018/200601 Al MIDEDIMODOMMOU10010101110110011MiliEVOIMIE 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))