Global Patent Index - EP 1153840 B1

EP 1153840 B1 2002-09-11 - Method for manufacturing an annular part of metal sheet for a can lid

Title (en)

Method for manufacturing an annular part of metal sheet for a can lid

Title (de)

Verfahren zum Herstellen eines Ringteils aus Blech für einen Dosendeckel

Title (fr)

Procédé de fabrication d'un anneau en tôle pour un couvercle de boîte

Publication

EP 1153840 B1 (DE)

Application

EP 01105859 A

Priority

DE 10022553 A

Abstract (en)

[origin: DE10022553C1] The method for producing a ring part from sheet metal from a can lid involves forming a flat plate part with hot-sealable coating (7) on the inside into a cylindrical tube (14). The axially running edges (17) of the tube are pressed together to form a blunt abutmeent and a cooling plate (18) is pressed against the inside of the tube along the axially running edges. A blunt abutment welding seam (20) is produced along the axially running edges by a laser beam (19) direct on the outside of the edges. The tube is then divided into equally long sections, one end of each of which is conically widened. The other end of each tube section is drawn inwards radially to form a locating surfaccee for a tear-off foil. The conically widened ends are turned over to form an outer edge to accommodate the body of a can.

IPC 1-7 (main, further and additional classification)

B65D 17/50; B21C 37/08; B21D 51/38; B21D 51/44; B23K 26/26; B23K 26/32

IPC 8 full level (invention and additional information)

B23K 26/00 (2006.01); B21D 51/44 (2006.01); B21D 53/16 (2006.01); B23K 26/20 (2006.01); B65D 17/50 (2006.01)

CPC (invention and additional information)

B21D 51/44 (2013.01); B21D 53/16 (2013.01); B65D 17/502 (2013.01); Y10S 72/702 (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 TR

DOCDB simple family

DE 10022553 C1 20010705; AT 223844 T 20020915; DK 1153840 T3 20021021; EP 1153840 A1 20011114; EP 1153840 B1 20020911; ES 2180522 T3 20030216; JP 2002001469 A 20020108; JP 4541588 B2 20100908; PT 1153840 E 20030131; US 2001041115 A1 20011115; US 6554556 B2 20030429