Method and apparatus for forming threads in metal containers
US5704240A · kind A · utility
113Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/2615
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A methods for forming threads in the neck portion of a can made of thin gauge, hard temper metal which minimizes stretching of the metal in the neck portion. The method employs a grooved arbor and roller having a single thread lead around less than 360.degree. of the roller's perimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.