Control of the neutralization of surface charges on objects
US5420743A · kind A · utility
13Cited by
17References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00654
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Control of the neutralization of surface charges existing on objects such as paper, fabrics, plastic sheets or the like. In order that the surface of an object (1) can be neutralized independently of the output parameters, the electrostatic charge present on the object (1) is determined by means of a charge sensor (2) arranged upstream of the brush. The charge already neutralized via the brush (5) is also continuously measured. The two values are fed to a microprocessor (11) causing an actuator (7) to control the brush-to-object distance. The controlled movement of the brush (5) effects complete neutralization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.