Method and apparatus for identifying a region of an S-Z stranded cable core and for marking an outer sheath covering the S-Z stranded cable core to indicate a region thereunder
US5745628A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1997 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Jan 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B13/345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process and apparatus for marking an outer jacket of an S-Z stranded cable to indicate the locations of switchbacks thereunder. The process comprises passing a portion of a cable core within a field of view of an imaging means to acquire an image thereof. The quantity of visually distinguishable conductors in the acquired image is compared to a reference value. If the reference value is exceeded, a transition region or switchback is indicated. Once a transition region is indicated, its position is tracked through a outer jacketing step. A marking to indication the location of the transition region is applied to the outer jacket according to the tracked position of the transition region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.