Strand for reinforcing objects made of polymer material
US4969497A · kind A · utility
3Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/294
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Strand for application as reinforcement in objects of polymer material comprising at least one core and less than six outside wires arranged round it, the core having an outside diameter larger than the diameter of the circle tangent to each of the outside wires in the hollow space that remains free when their cross-sections have the highest packing density and smaller than the diameter of the outside wires, whereby the outside wires are made of carbon steel wire with a tensile strength of at least 2250-1130 log d N/mm.sup.2, d being the wire diameter in mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.