Laminated billet process
US4937021A · kind A · utility
10Cited by
16References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Sep 19, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2793/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Laminated billets are made by extruding a plurality of sheets, cooling and stacking said sheets to form a stack, laminating a portion of said stack using radio frequency radiation, cutting out at least the laminated portion from the stack and returning the resulting individual webs to their respective sheet extrusion process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.