Global Patent Index - EP 1082184 A2

EP 1082184 A2 2001-03-14 - SLIGHTLY INCLINED SURFACE AREA IN A SHEET-METAL CLOSING LID

Title (en)

SLIGHTLY INCLINED SURFACE AREA IN A SHEET-METAL CLOSING LID

Title (de)

SANFT ABGESENKTER SPIEGELBEREICH IN EINEM BLECHVERSCHLUSSDECKEL

Title (fr)

ZONE SUPERFICIELLE LEGEREMENT INCLINEE DANS UN COUVERCLE DE FERMETURE EN TOLE

Publication

EP 1082184 A2 (DE)

Application

EP 99924666 A

Priority

  • DE 9900826 W
  • DE 19812671 A
  • DE 19833492 A

Abstract (en)

[origin: WO9948630A2] The purpose of the present invention is to ensure the lowering of an opening area as well as the generation of a resistance to an upper compression in closing lids while avoiding buckling-type mechanical deformation of the lowered area during the application of an extended and high-pressure compression from below. To this end, a sheet-metal closing lid for beverage cans comprises from the inside towards the outside a lid surface (10), a peripheral groove (20) and a seamed collar (21). At the level of the lid surface, a flat area (40) is adapted to the shape of a gripping tab (9) and of an opening area (8), and is in a lower position relative to the plane of the lid surface (10). This flat area (40) comprises elongated (42, 43) and short (45, 46) edge areas for defining the same relative to the non-lowered remaining part. One at least of the short edge areas (45) rises slightly ( alpha ) from the plane of the lowered flat area (40) towards the plane of the lid surface (10) located above so as to define a transition area capable of elastic deformation upon the application of an extended compression from the lower side of the lid. This invention also relates to a tool comprising a plurality of individual punches (G, R, H, S) for deforming the lid.

IPC 1-7 (main, further and additional classification)

B21D 1/00

IPC 8 full level (invention and additional information)

B21D 51/38 (2006.01); B65D 17/34 (2006.01)

CPC (invention and additional information)

B65D 17/165 (2013.01); B21D 51/383 (2013.01)

Citation (search report)

See references of WO 9948630A3

Designated contracting state (EPC)

BE DE DK ES FR GB GR IE IT NL PT SE

EPO simple patent family

WO 9948630 A2 19990930; WO 9948630 A3 19991111; AU 4129999 A 19991018; BR 9908952 A 20001128; CA 2325419 A1 19990930; CN 1091012 C 20020918; CN 1293602 A 20010502; EP 1082184 A2 20010314; PL 343415 A1 20010813

INPADOC legal status


2003-07-30 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030121

2002-08-21 [RTI1] TITLE (CORRECTION)

- Ref Legal Event Code: RTI1

- Free Format Text: SLIGHTLY INCLINING OF A SURFACE AREA IN A SHEET-METAL CLOSING LID

2001-04-11 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010223

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001018

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE DK ES FR GB GR IE IT NL PT SE