Electrostatic spray gun apparatus

Details Electrostatic spray gun apparatus Electrostatic spray gun apparatus

B - Operations, Transporting

05

B

32/16

B05B 5/053 (2006.01)

Patent

CA 1174040

ELECTROSTATIC SPRAY GUN APPARATUS ABSTRACT OF THE DISCLOSURE A hand-manipulable electrostatic spray gun is dis- closed which is one requiring no electric cable attached to it. Within the hand-manipulable spray gun an air turbine is driven at high speed in the order of 60,000 rpm and drives directly an alternator to generate an alternating voltage in the order of 50 volts at about 1000 Hz. The output of this alternator is supplied to a step-up transformer to achieve a secondary voltage in the order of 2500 volts. From here, it is supplied to a long chain series voltage multiplier to increase the voltage thereof to one in the order of 55-80 kilovolts. The combination of a relatively small transformer and small capacitance establishes a direct voltage output from the voltage multiplier which has an alternating voltage ripple in excess of fifteen percent. The foregoing abstract is merely a resume of one general application, is not a com- plete discussion of all principles of operation or applica- tions, and is not to be construed as a limitation on the scope of the claimed subject matter.

389429

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