Method and apparatus for processing heat-softenable fiber forming material
US4249398A · kind A · utility
2Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Feb 16, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/095
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method of, and apparatus for, processing heat-softened fiber-forming material comprising a bushing block. The bushing block has a wall defining a passage for accommodating flow of heat-softened material from a supply into a fiber-forming bushing. The bushing block further includes insulating means comprising an insulating space surrounding the wall and a radiation shield surrounding the insulating space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.