EP 0379875 A3 19910612 - DEVICE FOR MANUFACTURING A SEALING DIAPHRAGM
Title (en)
DEVICE FOR MANUFACTURING A SEALING DIAPHRAGM
Publication
Application
Priority
DE 3901703 A 19890121
Abstract (en)
[origin: EP0379875A2] The invention relates to a device for manufacturing a sealing diaphragm using an annular cutting blade, the annular cutting blade being made up of a plurality of segments and having, on its inner circumference, a wall which is inclined relative to the vertical and interacts with a counterwall which is inclined relative to the vertical and forms part of a fixed die. During the movement of a blank holder for the purpose of sealing the diaphragm shape, the annular cutting blade segments can be moved downwards and thus outwards. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 24/16 (2006.01); B21D 51/44 (2006.01)
CPC (source: EP)
B21D 24/16 (2013.01); B21D 51/44 (2013.01)
Citation (search report)
- [AD] DE 3700241 C1 19871112 - MACHF MARKHORST B V
- [AD] DE 3212275 A1 19821021 - STAEHLE GMBH [DE]
- [A] DE 1901272 A1 19700813 - BENZ & HILGERS GMBH
- [A] GB 2021009 A 19791128 - USM CORP
- [A] EP 0247986 A1 19871202 - AKERLUND & RAUSING LICENS AB [SE]
- [AD] DE 226907 C
- [A] FR 2125149 A1 19720929 - GALLAY FUTS METALLIQUES [FR]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
DE 3901703 C1 19890824; EP 0379875 A2 19900801; EP 0379875 A3 19910612
DOCDB simple family (application)
DE 3901703 A 19890121; EP 90100257 A 19900108