Spinnerette
US4248581A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Sep 5, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D4/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A spinnerette (60, 70, 80) is provided for use in a process in which one or more ends of individual filaments are extruded from a plurality of orifices (61, 71, 81) of the spinnerette (60, 70, 80). The orifices of each end are arranged in a pattern which bounds a predetermined area of the spinnerette. The pattern consists of at least 5 substantially parallel rows, the orifices being equispaced within a given row for substantially all of the rows. The perpendicular distance between rows going from one side of the pattern to the other on an average progressively increases per row by a percentage, preferably about 1 to 10 percent, of the orifice spacing on the row closest to a line parallel to the rows and bisecting the pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.