Expansion deformable extrusion die blade
US4281980A · kind A · utility
27Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Jan 18, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92904
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flexible lip die blade is provided in which local flexing of the blade is brought about by activation of heaters located in connector members connecting the flexible lip with the body of the die blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.