(19)
(11) EP 1 713 603 A2

(12)

(88) Date of publication A3:
23.03.2006

(43) Date of publication:
25.10.2006 Bulletin 2006/43

(21) Application number: 04816622.7

(22) Date of filing: 20.12.2004
(51) International Patent Classification (IPC): 
B22D 19/00(2006.01)
(86) International application number:
PCT/IB2004/004401
(87) International publication number:
WO 2005/060343 (07.07.2005 Gazette 2005/27)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 18.12.2003 US 531278 P

(71) Applicant: Tenedora Nemak, S.A. de C.V.
Garcia, N.L. 66000 (MX)

(72) Inventors:
  • CANTU-GONZALEZ, Oscar Gerardo
    Sector Colinas, Monterrey, Nuevo Leon (MX)
  • RAMIREZ-AL VAREZ, Ismael
    Guadalupe, Nuevo Leon 67170 (MX)
  • RAMIREZ-MORALES, Alvaro
    Monterrey, Nuevo Leon 64340 (MX)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) METHOD AND APPARATUS FOR MANUFACTURING STRONG THIN-WALLED CASTINGS