Electrostatic paint spray gun

Claim 1

AN ELECTROSTATIC PAINT SPRAY GUN INCLUDING AN ELECTRICALLY NON-CONDUCTIVE BARREL HAVING A CENTRAL LONGITUDINAL PASSAGE, ELECTROSTATIC PAINT SPRAY MEANS ON THE FRONT OF SAID BARREL ADAPTED TO BE CHARGED WITH HIGH VOLTAGE ELECTRIC CURRENT, MEANS FOR SUPPLYING PAINT TO THE FRONT PORTION OF SAID PASSAGE, THE LATTER COMMUNICATING WITH SAID SPRAY MEANS, A VALVE ADJACENT TO SAID SPARY MEANS FOR CONTROLLING THE FLOW OF PAINT FROM THE FRONT PORTION OF SAID PASSAGE TO THIS SPRAY MEANS, A MOVABLE VALVE ACTUATING ROD EXTENDING FROM SAID VALVE BACKWARDLY THROUGH SAID PASSAGE TO A LOCATION WHERE THE ROD MAY BE CONTROLLED, SEALING MEANS SPACED BACKWARDLY FROM SAID PASSAGE''S FRONT PORTION AND FORWARDLY FROM SAID LOCATION FOR PREVENTING THE BACKWARD FLOW OF PAINT THROUGH SAID PASSAGE, AT LEAST THE PORTION OF SAID ROD EXPOSED TO THE PAINT IN SAID PASSAGE BETWEEN SAID SEALING MEANS AND SAID SPRAY MEANS BEING ELECTRICALLY NONCONDUCTIVE SO THAT PAINT SUPPLIED TO SAID PASSAGE''S FRONT PORTION IS ELECTRICALLY ISOLATED FROM THE BALANCE OF THIS ROD; WHEREIN THE IMPROVEMENT COMPRISES SAID BARREL BEING MADE OF SOLID ELECTRICALLY NON-CONDUCTIVE MATERIAL WITH SAID CENTRAL PASSAGE FORMED THEREIN, SAID PAINT SUPPLY MEANS INCLUDING A PASSAGE FORMED THROUGH SAID BARREL LATERALLY OFFSET FROM SAID CENTRAL PASSAGE FROM THE BACK END OF SAID BARREL FORWARDLY AND TERMINATED ADJACENT TO THE FRONT PORTION OF THIS BARREL AND CONNECTING THEREWITH BY A BRANCH PASSAGE EXTENDING FROM THIS FRONT PORTION TO THE ADJACENT PORTION OF THIS OFFSET PASSAGE.