Device for insulating the spray liquid source from the high tens

Details Device for insulating the spray liquid source from the high tens Device for insulating the spray liquid source from the high tens

1988-10-31

1989-11-21

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Electrostatic type

With automatic safety feature

118629, 118636, 427 27, B05B 502

Patent

active

048816884

ABSTRACT:
A device for insulating the spray liquid source from the high tension voltage of an electrostatic spray system when using an electrically conductive spray liquid. The device comprises a spray gun (13), a supply line (12) which connects the spray gun (13) to a spray liquid reservoir (10) and which includes a vessel (16) containing a barrier forming liquid (17) of low electrical conductivity and a density other than that of the spray liquid. The vessel (16), which is substantially non-conductive is connected at its inlet end (24) to ground potential and at its outlet end (19) to the same high potential as the spray gun (13). An electrode means (22; 25) is provided in the vessel (16) to expose the spray liquid passing through the vessel (16) to at least one intermediate potential for controlling the tension gradient in the barrier forming liquid by limiting and controlling the charging of the spray liquid.

REFERENCES:
patent: 3934055 (1976-01-01), Tamny
patent: 4275834 (1981-06-01), Spanjersberg et al.
patent: 4401274 (1983-08-01), Coffee
patent: 4544570 (1985-10-01), Plunkett et al.
patent: 4629119 (1986-12-01), Plunkett et al.

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