Fold-back power supply
US4485427A · kind A · utility
28Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Apr 19, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrostatic charging potential generator for a coating dispenser is useful with, for example, hand-held dispensers where the dispenser can be brought into closely spaced orientation with articles to be coated, or "targets." The generator of the disclosure incorporates a "fold-back" voltage-current characteristic including a reduced voltage-reduced current curve region in which the energy available at the dispenser is less than that necessary for spark ignition of solvents, atomized coating material particles, and the like suspended in the atmosphere around the dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.