EP 0383052 B1 19930915 - METHOD AND DEVICE FOR ENSURING THE DIMENSIONAL ACCURACY OF A TRUNCATED PYRAMID-SHAPED CAN BODY
Title (en)
METHOD AND DEVICE FOR ENSURING THE DIMENSIONAL ACCURACY OF A TRUNCATED PYRAMID-SHAPED CAN BODY
Publication
Application
Priority
CH 53489 A 19890216
Abstract (en)
[origin: CA2009415A1] A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body. During the production of the body this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces, before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.
IPC 1-7
IPC 8 full level
B21D 41/02 (2006.01); B21D 51/26 (2006.01)
CPC (source: EP US)
B21D 51/2646 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0383052 A1 19900822; EP 0383052 B1 19930915; AR 243786 A1 19930930; AT E94438 T1 19931015; BR 9000701 A 19910122; CA 2009415 A1 19900816; CH 677742 A5 19910628; CN 1013556 B 19910821; CN 1045046 A 19900905; DE 3911390 A1 19900823; DE 3911390 C2 19920514; DE 59002677 D1 19931021; DK 168984 B1 19940725; DK 40590 A 19900817; DK 40590 D0 19900215; ES 2046542 T3 19940201; JP H02247034 A 19901002; JP H0780020 B2 19950830; SU 1732808 A4 19920507; US 4995254 A 19910226
DOCDB simple family (application)
EP 90101193 A 19900122; AR 31617190 A 19900215; AT 90101193 T 19900122; BR 9000701 A 19900215; CA 2009415 A 19900206; CH 53489 A 19890216; CN 90100636 A 19900208; DE 3911390 A 19890407; DE 59002677 T 19900122; DK 40590 A 19900215; ES 90101193 T 19900122; JP 3261790 A 19900215; SU 4743012 A 19900215; US 47447090 A 19900202