| 摘要 |
A selective corona charger is disclosed for imparting an electrical charge to liquid droplets in a spray, comprising conductor means, means for defining a grid, a means for moving the conductor means in the grid, scraper means for cleaning excess spray off the conductor means, and a power source for imparting a high voltage to the conductor means. The droplet charger is placed between the source of the spray and the article being sprayed. In operation, the article being sprayed is held at a low electrical potential, preferably ground. The spray is directed toward the article being sprayed and as the spray droplets pass through the corona charger they receive a high electrical potential or charge from the corona charger. The droplets are thereafter electrically attracted to the article being sprayed.
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