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Pub. No.:    WO/2012/044259    International Application No.:    PCT/SG2011/000345
Publication Date: 05.04.2012 International Filing Date: 03.10.2011
F16B 35/04 (2006.01), F16B 35/00 (2006.01), F16B 33/02 (2006.01), F16B 39/30 (2006.01)
Applicants: INFASTECH INTELLECTUAL PROPERTIES PTE. LTD. [SG/SG]; 8 Marina Boulevard #05-02 Marina Bay Financial Centre Tower 1 Singapore 018981 (SG) (For All Designated States Except US).
PHUA, Cheng Siong [SG/SG]; (SG) (For US Only).
KOTHANDARAMAN, Senthilukumaran [IN/IN]; (IN) (For US Only)
Inventors: PHUA, Cheng Siong; (SG).
KOTHANDARAMAN, Senthilukumaran; (IN)
Agent: PEACOCK, Blayne Malcolm; Marks & Clerk Singapore LLP Tanjong Pagar P O Box 636 Singapore 910816 (SG)
Priority Data:
201007309-6 01.10.2010 SG
Abstract: front page image
(EN)A threaded fastener having a threaded portion with a ratio of pitch diameter to minor diameter less than 1.28, and the threaded portion with a mayor diameter portion, a leading flank having a normal angle between 10° and 30°, a trailing flank having a normal angle between 1° and 30° and a shank portion extending between the trailing flank and the leading flank of adjacent threads of a arcuate surface having a radius greater than the thread height. The arcuate surface forming the shank portion may have a radius between 1.2 and 1.8 times the thread height.
(FR)L'invention concerne un élément de fixation fileté comprenant une partie filetée présentant un rapport diamètre primitif/diamètre intérieur inférieur à 1,28, et la partie filetée présentant une partie de diamètre extérieur, un flanc d'attaque présentant un angle normal de 10° à 30°, un flanc de fuite présentant un angle normal de 1° à 30° et une partie tige s'étendant entre le flanc de fuite et le flanc d'attaque de filetages adjacents d'une surface arquée présentant un rayon supérieur à la hauteur du filetage. La surface arquée formant la partie tige peut présenter un rayon représentant de 1,2 à 1,8 fois la hauteur du filetage.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, 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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)