US 2007/0181716 A1Published application

Voltage block device and an electrostatic coating system with the voltage block device

AssigneeRansburg Industrial Finishing K.K.

InventorsYasushi Yoshida, Masahito Ohno, Hidetoshi Kamaru

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Abstract

A voltage block device, for preventing the negative electric potential from transferred to the coating material source, has a switching device including a slider which is selectively slidable between first and second positions and has an inlet port fluidly communicated with the coating material source and an outlet port fluidly communicated with the spray, a reservoir including first and second chambers, the inlet and outlet ports are fluidly communicated with the first and second chambers, respectively when the slider is at the first position, and the inlet and outlet ports are fluidly communicated with the second and first chambers, respectively when the slider is at the second position.

Claims12

Dependent claims

A voltage block device, used in an electrostatic coating system in which a negative electric potential is applied to a coating material supplied from a coating material source to an spray for spraying the coating material to a coating objective to which a positive electric potential is applied, for preventing the negative electric potential from transferred to the coating material source, comprising:

a switching device including a slider which is selectively slidable between first and second positions and has an inlet port fluidly communicated with the coating material source and an outlet port fluidly communicated with the spray;
a reservoir including first and second chambers;
the inlet and outlet ports being fluidly communicated with the first and second chambers, respectively when the slider is at the first position;
and
the inlet and outlet ports being fluidly communicated with the second and first chambers, respectively when the slider is at the second position.

2 more elements

An electrostatic coating system, comprising:

a coating material source;
an spray, applied with a negative electric potential, for spraying the coating material from the coating material source to a coating objective, applied with a positive electric potential;
and
a voltage block device, for preventing the negative electric potential from transferred to the coating material source:
the voltage block device, comprising:
a switching device including a slider which is selectively slidable between first and second positions and has an inlet port fluidly communicated with the coating material source and an outlet port fluidly communicated with the spray;
a reservoir including first and second chambers;
the inlet and outlet ports being fluidly communicated with the first and second chambers, respectively when the slider is at the first position;
and
the inlet and outlet ports being fluidly communicated with the second and first chambers, respectively when the slider is at the second position.

7 more elements

Dependencies are inferred from the claim text.