Method of manufacturing, apparatus and resulting irregular shaped cross section tubes
US7325435B2 · kind B2 · utility
9Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2006 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Oct 10, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/015
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for making a tube having an inverted cross section and the resulting tube made thereby.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.