EP 0070406 A3 19840321 - TUBULAR BLANKS FOR MAKING, IN PARTICULAR, TUBES WITH SEVERAL BENDS, AND METHOD OF MAKING SUCH BLANKS
Title (en)
TUBULAR BLANKS FOR MAKING, IN PARTICULAR, TUBES WITH SEVERAL BENDS, AND METHOD OF MAKING SUCH BLANKS
Publication
Application
Priority
DE 3124957 A 19810625
Abstract (en)
[origin: EP0070406A2] It consists essentially in forming in an initially straight pipework duct, by upset pressing in the longitudinal direction, wall thickenings which are subjected to bending to form elbows. The end sides of the elbow merge into the end sides of the neighbouring elbow if a plurality of bends are to be produced. In any case, the respective starting side and the respective end side serve as mounting connection. <IMAGE>
IPC 1-7
IPC 8 full level
F16L 9/02 (2006.01); B21D 7/00 (2006.01); B21D 7/06 (2006.01); B21D 7/08 (2006.01)
CPC (source: EP)
B21D 7/06 (2013.01)
Citation (search report)
- US 2228301 A 19410114 - MARONEY DITZEL OSCAR, et al
- US 2258242 A 19411007 - MARONEY DITZEL OSCAR, et al
- US 2241083 A 19410506 - DIESCHER SAMUEL E
Designated contracting state (EPC)
AT BE CH FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0070406 A2 19830126; EP 0070406 A3 19840321; DE 3124957 A1 19830113; DE 3124957 C2 19870813; JP S5858935 A 19830407; ZA 824546 B 19830831
DOCDB simple family (application)
EP 82105537 A 19820624; DE 3124957 A 19810625; JP 10908882 A 19820624; ZA 824546 A 19820625