EP 2279809 A1 20110202 - Cap and process for forming the same
Title (en)
Cap and process for forming the same
Title (de)
Kappe und Verfahren zu dessen Herstellung
Title (fr)
Capuchon et son procédé de production
Publication
Application
Priority
EP 09425310 A 20090731
Abstract (en)
The present invention relates to a cap and a process for forming the same, which includes the step a) of providing a metal body (110) having a bottom (111) and a tubular wall (120) extending therefrom in a longitudinal direction (Y-Y) between an upper end (120a) and a lower end (120b). Particularly, the free end of the tubular wall (120) has a circular rim (121), substantially defining the lower end (120b) of said tubular wall (120). The step a) of providing a metal body (110) is followed by the step b) of curling the circular rim (121) to form a substantially spiral-shaped rib (122) curved inwards from the cap (100). Finally, the process includes the step c) of tapping the tubular wall (120) substantially at the rib (122) to form the threads (130) of the cap (100) so that the outer surface of the tubular wall (120) is substantially smooth.
IPC 8 full level
B21D 51/50 (2006.01); B65D 41/04 (2006.01)
CPC (source: EP)
B21D 51/50 (2013.01); B65D 41/0407 (2013.01)
Citation (search report)
- [X] US 2278462 A 19420407 - MONTELIONE JOSEPH M
- [X] US 725970 A 19030421 - KEMPIEN AUGUST J [US]
- [X] US 2120646 A 19380614 - MEROLLE AUGUSTUS L
- [A] US 4823537 A 19890425 - DUKE JAMES D [US]
- [A] DE 4122783 A1 19920116 - HERTRAMPF MICHAEL [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 09425310 A 20090731