M+n steel cord with equal PLE per filament
US5743078A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1997 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Mar 3, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2207/208
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A steel cord (30) consists of a first group and a second group. The first group comprises two or more plastically deformed outer steel filaments (10) twisted around each other with a first twist pitch and the second group comprises one or more plastically deformed inner steel filaments (20) twisted around each other with a second twist pitch. The second group is twisted around the first group with a cord twist pitch. One of the inner or the outer steel filaments having a part load elongation of x %, all the other inner and outer steel filaments having a part load elongation of y %, whereby x and y fulfil the equation: EQU x-0.10.ltoreq.y.ltoreq.x+0.10, and where all the inner and outer steel filaments have a deforming pitch that is substantially equal to the cord twist pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.