Profiled insulation LAN cables
US7993568B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for making a profiled insulation having an extrusion die with an extrusion tip and a polymer chamber surrounding the extrusion tip. The polymer chamber has at least one air chamber therein. The air chamber is held in place and coupled to the outside of the extrusion die by a vertical fin extending outwards from the extrusion tip. When molten polymer flows through the polymer chamber around the air chamber, an opening is introduced into the polymer such that the profiled insulation is formed as the polymer exits the extrusion die, having a longitudinal cavity therein corresponding to the location of the opening formed by the at least one air chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.