Patent ID: 8770496
Filing Date: 2014-07-08
Classification: B05B,H02M

Abstract:
1. A coating dispensing device including a trigger assembly for actuating the coating dispensing device to dispense coating material, and a nozzle through which the coating material is dispensed, a source of voltage, a voltage multiplier for multiplying the voltage, the voltage multiplier coupled to the source, an output terminal of the voltage multiplier charged to a high-magnitude electrostatic potential and adapted to charge coating material as the coating material is dispensed from the dispensing device, and a circuit for providing a visual indication of the voltage at the output terminal, the circuit comprising a first impedance across which a portion of the voltage at the output terminal appears, a buffer amplifier having an input terminal coupled to the first impedance and an output terminal, the buffer amplifier isolating the first impedance from the output terminal of the buffer amplifier, the output terminal of the buffer amplifier coupled to a light source for providing the visual indication of the voltage at the output terminal of the voltage multiplier.