Method and apparatus for forming hollow fibers
US4941904A · kind A · utility
13Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/217
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The instant invention relates to a method and apparatus for the production of hollow glass fibers using a novel tip design. It is believed that the success of the instant invention is due to the injection of pressurized gas to create a central lumen at distances farther removed from the terminus of the tip than taught possible by the prior art. This results in a more stable process and the production of hollow fibers having more uniform wall concentricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.