EP 0356269 A3 19901031 - METHOD AND DEVICE FOR PRODUCING BARREL DRUMS
Title (en)
METHOD AND DEVICE FOR PRODUCING BARREL DRUMS
Publication
Application
Priority
FR 8809745 A 19880719
Abstract (en)
[origin: EP0356269A2] The present invention relates to a method and a device for producing a cylindrical tubular element forming a barrel drum having at least one set of beads and tubular element thus produced. According to the invention, the set of beads (20a, 20b) is formed in a single operation by rolling, positioning a counter-roller against one of the faces of the wall of the tubular element (11) and bringing a roller to bear progressively on the opposite face of the said wall and facing the counter-roller, up to a working position which defines an acute angle with the axis of the said counter-roller, so that the beads have an amplitude which increases progressively from one of the ends of the cylindrical tubular element (11). <IMAGE>
IPC 1-7
IPC 8 full level
B21D 15/06 (2006.01); B21D 17/04 (2006.01); B21D 51/20 (2006.01)
CPC (source: EP)
B21D 15/06 (2013.01); B21D 51/20 (2013.01)
Citation (search report)
- [AD] EP 0258087 A1 19880302 - GALLAY SA [FR]
- [X] FR 769832 A 19340903 - MAUSER MASCHB GMBH
- [X] DE 1552064 A1 19691218 - RHEINPFAELZISCHE BLECHEMBALLAG
- [A] FR 709343 A 19310805
- [A] DE 1452726 A1 19690327 - LAUTERBERGER BLECHWARENFABRIK
- [A] US 2793671 A 19570528 - EVANS ROBERT G
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0356269 A2 19900228; EP 0356269 A3 19901031; EP 0356269 B1 19920520; AT E76337 T1 19920615; DE 68901594 D1 19920625; ES 2033106 T3 19930301; FR 2634405 A1 19900126; GR 3004721 T3 19930428
DOCDB simple family (application)
EP 89401917 A 19890704; AT 89401917 T 19890704; DE 68901594 T 19890704; ES 89401917 T 19890704; FR 8809745 A 19880719; GR 920401065 T 19920526