Container, and selectively formed shell, and tooling and associated method for providing same
US9975164B2 · kind B2 · utility
8Cited by
34References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Aug 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12389
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shell, a container employing the shell, and tooling and associated methods for forming the shell are provided. The shell includes a center panel, a circumferential chuck wall, an annular countersink between the center panel and the circumferential chuck wall, and a curl extending radially outwardly from the chuck wall. The material of at least one predetermined portion of the shell is selectively stretched relative to at least one other portion of the shell, thereby providing a corresponding thinned portion. The tooling includes a pressure concentrating forming surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.