Toy articles of manufacture comprising spontaneously wettable fibers
US5346422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Dec 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2973
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This invention relates to an article of manufacture consisting of a toy having a plurality of synthetic fibers capable of spontaneously transporting water on the surface thereof, said fibers satisfying the following equation EQU (1-X cos .theta..sub.a)<0, wherein .theta..sub.a is the advancing contact angle of water measured on a flat film made from the same material as the fiber and having the same surface treatment, if any, X is a shape factor of the fiber cross-section that satisfies the following equation ##EQU1## wherein P.sub.w is the wetted perimeter of the fiber and r is the radius of the circumscribed circle circumscribing the fiber cross-section and D is the minor axis dimension across the fiber cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.