Global Patent Index - EP 1160026 A2

EP 1160026 A2 2001-12-05 - Method of producing expanded metal as well as the expanded metal produced by this method

Title (en)

Method of producing expanded metal as well as the expanded metal produced by this method

Title (de)

Verfahren zur Herstellung eines Streckgitters sowie ein mit diesem Verfahren hergestelltes Streckgitter

Title (fr)

Procédé de production de métal déployé ainsi que le métal déployé produit par ce procédé

Publication

EP 1160026 A2 (DE)

Application

EP 01113319 A

Priority

DE 10027010 A

Abstract (en)

The stretch grid structure is formed by cuts (2a) of equal length, offset from each other in parallel rows, in a length of material (1) e.g. aluminum. The cut material is stretched on a direction (A) across the line of cuts so that the material contracts freely across the stretching direction, and the cuts open out (2b,2c), with material bonding points (3) between them. The material width is contracted during stretching to a size which is determined by the stretching force applied, to give a three-dimensional profiled stretched grid length.

Abstract (de)

Die Erfindung betrifft ein Verfahren zur Herstellung eines Streckgitters, bei dem eine mit zueinander versetzten Einschnitten (2a) versehene Materialbahn (1) in einer Richtung (A) quer zur Schnittlinie gestreckt wird, und die Materialbahn quer zur Streckrichtung frei kontrahieren kann. Die Materialbahn (1) kontrahiert in ihrer Breite während des Streckvorgangs auf ein Maß, das nur durch die während des Streckvorgangs auf die Materialbahn ausgeübte Streckkraft bestimmt ist. <IMAGE>

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

B21D 31/04

IPC 8 full level (invention and additional information)

B21D 31/04 (2006.01)

CPC (invention and additional information)

B21D 31/043 (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

EPO simple patent family

EP 1160026 A2 20011205; EP 1160026 A3 20021023; DE 10027010 A1 20011213; DE 10027010 C2 20020627

INPADOC legal status


2004-02-04 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030424

2003-08-21 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2003-07-16 [AKX] PAYMENT OF DESIGNATION FEES

2002-10-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-10-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2001-12-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI