Global Patent Index - EP 1094937 B9

EP 1094937 B9 2009-02-18 - METHOD OF MAKING A COPPER CORE FIVE-PLY COMPOSITE AND COOKING VESSEL

Title (en)

METHOD OF MAKING A COPPER CORE FIVE-PLY COMPOSITE AND COOKING VESSEL

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES FÜNFLAGENVERBANDES MIT KUPFERKERN UND KOCHGESCHIRR

Title (fr)

PROCEDE DE FABRICATION D'UN COMPOSITE EN CINQ COUCHES A NOYAU DE CUIVRE ET RECIPIENT DE CUISSON

Publication

EP 1094937 B9 (EN)

Application

EP 99921654 A

Priority

  • US 9909756 W
  • US 8417798 P

Abstract (en)

[origin: WO9956950A1] A 5-ply composite metal product (10) for the manufacture of cookware is provided which contains a relatively thick copper core (2) having relatively thin layers of pure aluminum (4) bonded between outer layers of stainless steel (8). The cooking vessels made therefrom may contain a decorative groove or skived ring around a perimeter of the vessel, formed by machining away the outer layers of stainless steel and pure aluminum to visually expose the copper core.

IPC 8 full level (invention and additional information)

B32B 15/18 (2006.01); A47J 27/00 (2006.01); A47J 36/02 (2006.01); B23K 20/04 (2006.01); B32B 15/01 (2006.01); B32B 15/20 (2006.01); B21B 1/22 (2006.01); B21B 1/38 (2006.01); B21B 3/00 (2006.01); B21B 3/02 (2006.01)

CPC (invention and additional information)

B32B 15/017 (2013.01); A47J 27/002 (2013.01); A47J 36/02 (2013.01); B23K 20/04 (2013.01); B32B 15/012 (2013.01); B32B 15/015 (2013.01); B21B 3/02 (2013.01); B21B 2001/221 (2013.01); B21B 2001/383 (2013.01); B21B 2003/001 (2013.01); B21B 2003/005 (2013.01); B23K 2101/12 (2018.08); B23K 2103/12 (2018.08); Y10T 428/1275 (2013.01); Y10T 428/12757 (2013.01); Y10T 428/12979 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9956950 A1 19991111; AT 402810 T 20080815; DE 69939216 D1 20080911; EP 1094937 A1 20010502; EP 1094937 A4 20060426; EP 1094937 B1 20080730; EP 1094937 B9 20090218; EP 1980184 A1 20081015; ES 2310426 T3 20090101; JP 2002513698 A 20020514; JP 4689040 B2 20110525; KR 100523343 B1 20051024; US 6267830 B1 20010731

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2008-03-05 [RTI1] TITLE (CORRECTION)

- Free text: METHOD OF MAKING A COPPER CORE FIVE-PLY COMPOSITE AND COOKING VESSEL

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