Fluid sprinkling – spraying – and diffusing – Electrostatic type – With automatic safety feature
Patent
1979-03-15
1981-01-13
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Electrostatic type
With automatic safety feature
200 819R, 239705, B05B 502
Patent
active
042445272
ABSTRACT:
An electrostatic spray gun having an installed high-voltage generator, connected at its low-voltage side with an installed switch element for turning-on and turning-off the high-voltage generator. The spray gun further is provided with a flow channel for an atomizing gas, the flow channel being connected with a pressure line. A manually-operated closure valve is arranged in the flow channel. The switch element is structured as a flow-actuated or flow switch and is arranged in the flow channel and its movable contact is coupled with a closure element of a differential pressure valve arranged in the flow channel. In this way it is possible to only then turn-on the high-voltage generator when the atomizing gas flows in an undisturbed fashion through the flow channel. Disturbances in the flow of the atomizing gas, whether such be due to clogging of the nozzle at the spray gun, or due to a malfunction of the pressure source of the atomizing gas, thus automatically turn-off the high-voltage generator.
REFERENCES:
patent: 3539103 (1970-11-01), Marsh
patent: 3608823 (1971-09-01), Buschor
patent: 3692241 (1972-09-01), Walberg
Gema AG Apparatebau
Kashnikow Andres
Kleeman Werner W.
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