EP 0851200 A3 19990512 - Process for arranging tabs and/or projections on a thin sheet and thin tube of rectangular cross section

Title (en)

Process for arranging tabs and/or projections on a thin sheet and thin tube of rectangular cross section

Title (de)

Verfahren zum Anbringen von Laschen und/oder Vorsprüngen an einem Feinblech und Feinblech mit Laschen und/oder Vorrichtungen sowie Rechteckrohr aus Feinblechen

Title (fr)

Procédé pour la réalisation de languettes et/ou de saillies sur une tÔle mince et tube en tÔle mince à section rectangulaire

Publication

EP 0851200 A3 19990512 (DE)

Application

EP 97120668 A 19971126

Priority

DE 19654367 A 19961224

Abstract (en)

[origin: EP0851200A2] The lugs (13,14) or protrusions are at right angles to the metal surface and extend for further than the thickness of the latter. The method involves using a punch and die to loading the metal beyond the yield point. Part of the metal can be pressed into recesses in the punch and/or die, which forms the negative mould for the lugs or protrusions. Formation can be by punch and die at intervals, while the sheet-metal strip is indexed forward.

IPC 1-7

F28F 1/04; F28F 1/40; B21D 53/04

IPC 8 full level

B23P 19/02 (2006.01); B21C 37/15 (2006.01); B21C 37/20 (2006.01); B21D 22/02 (2006.01); B21D 53/04 (2006.01); B21D 53/84 (2006.01); F01N 13/18 (2010.01); F28F 1/02 (2006.01); F28F 1/04 (2006.01); F28F 1/40 (2006.01); F28F 13/12 (2006.01)

CPC (source: EP US)

B21C 37/20 (2013.01 - EP US); B21D 22/02 (2013.01 - EP US); B21D 53/04 (2013.01 - EP US); F28F 1/04 (2013.01 - EP US); F28F 13/12 (2013.01 - EP US); F28D 21/0003 (2013.01 - EP US); Y10S 138/04 (2013.01 - EP US); Y10S 138/11 (2013.01 - EP US)

Citation (search report)

[PDX] EP 0772018 A2 19970507 - BEHR GMBH & CO [DE]
[XY] WO 9505571 A2 19950223 - INSILCO CORP [US]
[Y] EP 0677715 A1 19951018 - BEHR GMBH & CO [DE]
[X] US 5417097 A 19950523 - KOJIMA ICHIROU [JP], et al
[X] US 4122700 A 19781031 - GRANZOW WAYNE G
[X] GB 2088544 A 19820609 - LUMMUS CO
[A] US 4206806 A 19800610 - TOGASHI AKIRA [JP]

Designated contracting state (EPC)

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

DOCDB simple family (publication)

DE 19654367 A1 19980625; DE 59712183 D1 20050303; EP 0851200 A2 19980701; EP 0851200 A3 19990512; EP 0851200 B1 20050126; EP 0851200 B2 20100317; JP H10193017 A 19980728; US 6070616 A 20000606

DOCDB simple family (application)

DE 19654367 A 19961224; DE 59712183 T 19971126; EP 97120668 A 19971126; JP 32307097 A 19971125; US 99621097 A 19971222