Spinneret for hollow fibers having curved spacing members projecting therefrom
US4850847A · kind A · utility
20Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | May 10, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A hollow fiber with a plurality of members projecting from its outer surface in an arc turned back on itself is formed from a spinneret having a segmented orifice wherein each segment comprises a first portion in the form of an arc curved about the center of the orifice, a second portion extending from the first and connected to a third portion which is in the form of a reverse curve with respect to the first.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.