Method and apparatus for making nodule filament fibers
US4290993A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1980 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Jan 10, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0611
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing "dogbone" filament fibers having nodules at each end comprising rotating a heat extracting disk having an edge tapering to a narrow peripheral surface and having the peripheral surface notched at intervals with each notch comprising a leading edge, connected to a trailing flat surface, the trailing flat surface supporting an expanded land on the peripheral edge; introducing the rotating disk into the surface of a pool of molten material to form a film of the material on the edge; and removing heat from the film and at least partially solidifying the film on the edge. By the method, the segmented filament fiber products which are produced have a nodule formed on the leading end, a nodule formed on the trailing end, and continuous fiber inbetween, with the general appearance of a dogbone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.