Packaging can and method and apparatus for its manufacture
US8746488B2 · kind B2 · utility
16Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2006 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2577/205
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A can for packaging food, comprising a metal can body and a diaphragm lid (16) formed of lidding material which comprises a multilayer structure with at least an aluminum layer of from 6 to 90 microns thickness and a bond layer for fixing the lid (16) directly to the can body. One method for forming the can forms the lidding material by using an outwardly extending curl (20) at one end of the metal can body as the draw die. Lidding material which is carried by the body maker punch is drawn around the curl of the can body draw die so as to form the lidding material into a cup shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.