Method of reforming a can end
US4031837A · kind A · utility
77Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1976 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | May 21, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D7/36
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for reforming a metallic can end to increase the pressure holding capabilities of the container to which the can end is seamed comprising the steps of increasing the depth of an annular groove with respect to a substantially planar center wall and reducing the radius of curvature of a curved portion at the bottom of the annular groove between an inner wall on the inside of the annular groove and an integral chuckwall on the outside of the annular groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.