Ion generator structure
US4734722A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T19/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ion generator for use with an electrostatic printer or the like to modify the electrostatic charge on a dielectric receptor surface is described. The generator includes a plurality of corona wires supported on a rod attached and to the rod. The wires are spaced angularly about the rod and a protector extends longitudinally around the rod and spaced radially from the wires. The protector has an axially extending window and an end piece is fixed to an outer end of the rod and journalled with an end of the protector to allow relative angular movement so that selected ones of the wires can be aligned with the window near the receptor surface. The window has an annular extent less than the spacing between adjacent wires so that for transportation the rod can be turned in the protector to place the wires to the sides of the window to minimize the risk of damage. The ion generator can be combined with a housing mounted on the printer and the generator is designed for rotational engagement in the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.