EP 0232257 B1 19910529 - PROCESS FOR THE PRODUCTION OF FLANGES OR COLLARS ON HOLLOW PARTS BY LATERAL EXTRUSION
Title (en)
PROCESS FOR THE PRODUCTION OF FLANGES OR COLLARS ON HOLLOW PARTS BY LATERAL EXTRUSION
Publication
Application
Priority
DE 8500276 W 19850814
Abstract (en)
[origin: US4782679A] PCT No. PCT/DE85/00276 Sec. 371 Date Apr. 8, 1987 Sec. 102(e) Date Apr. 8, 1987 PCT Filed Aug. 14, 1985 PCT Pub. No. WO87/01991 PCT Pub. Date Apr. 9, 1987.A process for the production of flanges or collars on hollow parts by lateral extrusion in which the hollow part is supported internally during lateral extrusion, and the support is provided by an elastic and/or plastic medium inserted in the hollow space.
IPC 1-7
IPC 8 full level
B21K 1/14 (2006.01); B21K 23/04 (2006.01)
CPC (source: EP US)
B21K 1/14 (2013.01 - EP US); B21K 23/04 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
US 4782679 A 19881108; DE 3583041 D1 19910704; EP 0232257 A1 19870819; EP 0232257 B1 19910529; WO 8701062 A1 19870226
DOCDB simple family (application)
US 3725687 A 19870408; DE 3583041 T 19850814; DE 8500276 W 19850814; EP 85904093 A 19850814