(19)
(11) EP 1 225 993 A1

(12)

(43) Date of publication:
31.07.2002 Bulletin 2002/31

(21) Application number: 00952228.5

(22) Date of filing: 27.07.2000
(51) International Patent Classification (IPC)7: B22D 29/00, C21D 1/00
(86) International application number:
PCT/US0020/466
(87) International publication number:
WO 0108/836 (08.02.2001 Gazette 2001/06)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.07.1999 US 146390 P
26.08.1999 US 150901 P
10.05.2000 US 202740 P

(71) Applicant: Consolidated Engineering Company, Inc.
Kennesaw,Georgia 30144-3651 (US)

(72) Inventors:
  • CRAFTON, Scott, P.
    Marietta, GA 30064 (US)
  • CRAFTON, Paul, M.
    Kennesaw, GA 30144 (US)
  • KNOBLOCH, Volker, R.
    Woodstock, GA 30189 (US)
  • LEWIS, James, L., Jr.
    Kennesaw, GA 30152 (US)
  • FRENCH, Ian
    Kennesaw, GA 30144 (US)

(74) Representative: Hofstetter, Alfons J., Dr.rer.nat. et al
Hofstetter,Schurack & SkoraBalanstrasse 57
81541 München
81541 München (DE)

   


(54) HEAT TREATMENT AND SAND REMOVAL FOR CASTINGS