Production of steel cord
US4785617A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Apr 20, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2207/207
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A process and machine for making a cord in a structure of one or more layers of filaments, all twisted with a same twist pitch p around a core in which the filaments are not twisted around each other with that same twist pitch p. The cord is made in one continous process in which the core filaments are bundled in a twister, then the layer filaments are joined in parallel to the core bundle on exit from the twister, and the whole is then twisted in a double-twist bunching machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.