Process for manufacturing coated wire composite and a corona generating device produced thereby
US5756998A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T19/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved process for manufacturing glass coated wire, for example, a corona generating electrode having a dielectric coating layer of the type used in electrostatographic printing applications, wherein predetermined stresses are induced along the axial, radial, and hoop stress vectors present in the dielectric coating. In accordance with the present invention, there is provided a process for manufacturing a coated wire composite including a core wire having a coating layer of dielectric material thereon, comprising the steps of: providing a preform of dielectric coating material in a cylindrically tubular shape defining an inside diameter and an outside diameter and having a predetermined length; aligning a continuous length of the core wire with the inside diameter of the preform for transporting the wire therethrough in a coaxial arrangement such that the wire enters the preform at an entrance orifice and exits the preform at an exit orifice; applying heat to the preform for melting a portion of the preform in the proximity to the exit orifice for providing molten dielectric material in contact with the core wire such that a portion of the molten dielectric material is caused …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.