Circuit for displaying the relative voltage at the output...

B - Operations – Transporting – 05 – B

Patent

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B05B 5/053 (2006.01) H02M 7/04 (2006.01)

Patent

CA 2717815

A coating dispensing device includes a trigger assembly (26) for actuating the coating dispensing device to dispense coating material and a nozzle (30) through which the coating material is dispensed. The coating dispensing device further includes a source of voltage and a voltage multiplier (58) for multiplying the voltage. The voltage multiplier (58) is coupled to the source. An output terminal of the voltage multiplier is charged to a high- magnitude electrostatic potential and is adapted to charge coating material as the coating material is dispensed from the dispensing device. The coating dispensing device further includes a circuit for providing a visual indication of the voltage at the output terminal, comprising a first impedance across which a portion of the voltage at the output terminal appears and an amplifier (150, 154). The output terminal of the amplifier is coupled to a light source for providing the visual indication of the voltage at the output terminal of the voltage multiplier.

L'invention concerne un dispositif de distribution de revêtement qui comprend un ensemble détente (26) pour actionner le dispositif et amener ce dernier à distribuer un matériau de revêtement et une buse (30) à travers laquelle le matériau de revêtement est distribué. Le dispositif de distribution de revêtement comprend également une source de tension et un multiplicateur de tension (58) pour multiplier la tension. Ledit multiplicateur de tension (58) est couplé à la source. Une borne de sortie du multiplicateur de tension est chargée sur un potentiel électrostatique de haute amplitude et est conçu pour charger le matériau de revêtement à mesure que ce dernier est distribué à partir du dispositif de distribution. Le dispositif de distribution de revêtement comprend en outre un circuit pour fournir une indication visuelle de la tension à la borne de sortie, ledit circuit comprenant une première impédance à laquelle une partie de la tension à la borne de sortie apparaît et un amplificateur (150, 154). La borne de sortie de l'amplificateur est couplée à une source lumineuse qui permet de fournir l'indication visuelle de la tension à la borne de sortie du multiplicateur de tension.

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