Method and apparatus for metal container manufacture
US6434997B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Oct 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D17/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus (2) for providing at least a bead (4) on a side wall portion (10) of a metal container (8). The apparatus includes a mandrel (16) over which side wall portions (10) of the container are disposed. The mandrel (16) has reaction members (20) with reaction surfaces for supporting the side wall portion internally and a plurality of forming members (18) surrounding the mandrel having forming surfaces being substantially parallel with the reaction surfaces but separated therefrom to define a gap between the surfaces which receives the side wall portion (10). The reaction members (20) and forming members (18) are capable of displacement towards and away from one another such that the gap between the reaction surfaces and forming surfaces can effectively expand and contract. The reaction surfaces and forming surfaces are provided with complementary formations thereon to deform the side wall portion therebetween and form a bead (4) therein. The reaction members (20) and the forming members (18) are moved back and forth by virtue of cam means particular to each reaction member and forming member and the cam means are provided on an actuating member (26) having a linear …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.