(19)
(11) EP 1 606 073 A1

(12)

(43) Date of publication:
21.12.2005 Bulletin 2005/51

(21) Application number: 03816276.4

(22) Date of filing: 11.03.2003
(51) International Patent Classification (IPC)7B23B 51/00
(86) International application number:
PCT/US2003/007184
(87) International publication number:
WO 2004/080632 (23.09.2004 Gazette 2004/39)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(71) Applicant: Credo Technology Corporation
Broadview,Illinois 60155 (US)

(72) Inventors:
  • WIKER, Juergen
    70771 Leinfelden-Echterdingen (DE)
  • PHILLIPS, Gregory, A.
    LaGrange, KY 40031 (US)

(74) Representative: Barth, Stephan Manuel 
Reinhard-Skuhra-Weise & Partner GbR, Patentanwälte Friedrichstrasse 31
80801 München
80801 München (DE)

   


(54) SPADE DRILL BIT