Electrostatic paint spraying system with paint line voltage bloc

Details Electrostatic paint spraying system with paint line voltage bloc Electrostatic paint spraying system with paint line voltage bloc

1973-12-03

1976-01-20

Reeves, Robert B.

Dispensing

Automatic control

Delivery from source controlled by quantity in discharging...

222190, 239 3, 317 3, B67D 508

Patent

active

039332853

ABSTRACT:
The disclosure relates to an improved electrostatic paint spray system adapted for the application of conductive materials while at the same time providing for isolation of the electrically charged spray heads from the source of coating material. Heretofore, electrostatic paint spray procedures have been limited to a large extent to the use of non-conductive coating materials. Where it is appropriate or desirable to utilize conductive coating materials, it has been necessary to provide for the electrical isolation of the entire paint supply system, a circumstance which imposes severe practical limitations. The present invention enables an isolating stage to be provided within the coating material supply system, near the area of discharge, so that the "upstream" portions of the supply system are free of the high voltage electrical charge impressed at the spray guns, notwithstanding the use of electrically conductive coating materials.

REFERENCES:
patent: 2693805 (1954-11-01), Taplin
patent: 3122320 (1964-02-01), Beck
patent: 3212671 (1965-10-01), Rock
patent: 3499577 (1970-03-01), Nilsson
patent: 3534788 (1970-10-01), Vergobbi
patent: 3588054 (1971-06-01), Ljungberg
patent: 3814147 (1974-06-01), Lindberg

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