EP 0680793 B1 20000405 - Method and apparatus for making a building structure form with a flat stiffened plate part
Title (en)
Method and apparatus for making a building structure form with a flat stiffened plate part
Title (de)
Verfahren und Vorrichtung zum Herstellen von einer Baustrukturform mit einem Flach versteiften Plattenteil
Title (fr)
Procédé et appareil pour fabriquer une forme de structure de construction avec une partie renforcée plane
Publication
Application
Priority
NL 9400739 A 19940504
Abstract (en)
[origin: EP0680793A1] A method for stiffening plate-like material for a spatial structural member, for example a cable trough, which stiffening takes place by locally pressing through the material to form ridges, wherein at least on one side of the ridge the thickness of the material is made smaller, whereby the material is extended, this such that internal tensions resulting from cold deformations in the plate are eliminated. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 13/04 (2006.01); B21D 31/04 (2006.01)
CPC (source: EP)
B21D 13/04 (2013.01); B21D 31/046 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0680793 A1 19951108; EP 0680793 B1 20000405; AT E191375 T1 20000415; DE 69516033 D1 20000511; DE 69516033 T2 20090917; DK 0680793 T3 20000814; ES 2144568 T3 20000616; GR 3033241 T3 20000929; NL 9400739 A 19951201; PT 680793 E 20000731
DOCDB simple family (application)
EP 95201157 A 19950504; AT 95201157 T 19950504; DE 69516033 T 19950504; DK 95201157 T 19950504; ES 95201157 T 19950504; GR 20000400923 T 20000414; NL 9400739 A 19940504; PT 95201157 T 19950504