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1. (WO2002004162) WELDING TORCH
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/004162    International Application No.:    PCT/NL2001/000488
Publication Date: 17.01.2002 International Filing Date: 28.06.2001
Chapter 2 Demand Filed:    05.02.2002    
IPC:
B23K 9/067 (2006.01), B23K 9/12 (2006.01), B23K 9/173 (2006.01)
Applicants: BRABANDER, Wilhelmus, Anthonius, Johannes [NL/NL]; (NL)
Inventors: BRABANDER, Wilhelmus, Anthonius, Johannes; (NL)
Agent: GRIEBLING, Onno; c/o Octrooibureau Griebling BV, Sportweg 10, NL-5037 AC Tilburg (NL)
Priority Data:
1015649 07.07.2000 NL (Priority Withdrawn 06.01.2003)
Title (EN) WELDING TORCH
(FR) CHALUMEAU SOUDEUR
Abstract: front page image
(EN)A MIG torch (500) comprises a contact tube (501) and an auxiliary electrode (570) made from carbon, which is electrically connected to the contact tube (501). In a start phase, a primary welding arc (531) is started between an MIG wire (510) and a workpiece (1), with stationary wire. The primary arc melts a small portion of the MIG wire, but then reaches the auxiliary electrode (570), and keeps on burning there stationary, wherein the workpiece (1) does melt but not the MIG wire (510). When a welding pool (2) is sufficiently large, the wire feed is started.
(FR)L'invention porte sur un chalumeau soudeur MIG (500), qui comprend un tube de contact (501) et une électrode auxiliaire (570) en carbone raccordée électriquement au tube de contact (501). Dans une phase d'amorçage, un arc de soudage primaire (531) est démarré entre un fil MIG (510) et une pièce à usiner (1), au moyen d'un fil fixe. Le premier arc fait fondre une petite partie du fil MIG puis atteint l'électrode auxiliaire (570) où il continue sa combustion sur place, si bien que la pièce à usiner (1) fond effectivement mais pas le fil MIG (510). Lorsqu'un bain de fusion est suffisamment grand, on démarre l'alimentation en fil.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: Dutch; Flemish (NL)