Method for producing a can base and a lever ring
US7506529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/715
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for producing a cylindrical, seamless can body (20) made of metal with associated can top end. The can top end includes a top end ring, that can be connected to the opening edge (21) of the can body (20) and borders a removal opening (30) and a sealing diaphragm (31) arranged on the top end ring and covering the removal opening. A cylindrical, seamless can body blank (10) is produced. Following trimming of the opening edge (11) of the can body blank (10), a cylindrical ring (18) is separated therefrom. The height of the can body blank (10) is preset in such a way that the can body (20) is formed during separation of the cylindrical ring (18). The scrap portion can also be reduced by the method during production of can bodies and top end rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.