Protective device for electrostatic sprayer equipment
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United States of America Patent
Stats
-
Jun 9, 1987
Grant Date -
N/A
app pub date -
Sep 14, 1984
filing date -
Sep 14, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electrostatic spraying equipment having, in a working area likely to contain inflammable mixtures, at least a terminal part of a high-voltage generator with an electrode for charging a jet of material sprayed from a sprayer. At least one low-voltage line connects the terminal part of the generator to a remotely sited power supply equipped with cut-out device. A protective device designed to prevent repeated arcing in the working area as a result of deterioration of the low-voltage line comprises, in series with the line, a sensing device for sensing a current lower than a predetermined minimum current. A control device responsive to the sensing device are connected to the aforementioned cut-out device so as to operate them when a current in the line lower than the predetermined minimum is sensed.
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Cited Art Landscape
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