Tridirectional laid scrims for reinforcement purposes
US11020914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Feb 14, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C5/073
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A triaxial laid scrim includes a first, second and third set of continuous fibers. The fibers of each set are regularly spaced apart and are parallel to each other. The fibers of the first set are parallel to the warp direction or to the weft direction of the scrim. The fibers of the second set and the third set are oriented symmetrically to each other, respectively at an angle of 30°-80° with respect to the fibers of the first set. Distances between the fibers of the second set and the fibers of the third set are identical. The fibers of the second set cross the fibers of the third set at the intersection thereof with the fibers of the first set, thereby defining regular openings having an isosceles triangle shape. The fibers are coated and attached to each other by a coating that does not fill-up the triangle-shaped openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.