Electrostatic spray pistol

For use with a paint spray gun handle with a material delivery path therethrough and a trigger controlled valve located to open and close the delivery path, an electrostatic attachment comprising:

• an elongated barrel with a proximal and a distal end and a material delivery opening therethrough, a paint spray electrode is attached to said distal end;
• connection means attached to said proximal end to connect the handle to said barrel so as to align an end of the material delivery path through the handle with a proximal end of said material delivery opening in said barrel;
• a tubular, rigid, trigger guard with first and second ends, said first end is fixedly attached to said barrel adjacent said proximal end and said second end is removably connectable to a lower end of the handle;
• high voltage generation means removably located within said trigger guard and connected by electrical means enclosed within said trigger guard and said barrel to said paint spray electrode;
• whereby hot materials may be applied by an electrostatic gun formed by connecting the handle to said electrostatic attachment without degrading the electrical characteristics of said high voltage generation means.

In an electrostatic spray gun having a barrel and a housing with a handle, the barrel is affixed at a proximal end to one end of the housing at an angle with respect to the handle;

• a distribution system for the material to be sprayed within the housing being operably connected to a boring through the barrel and having a manually operable trigger rotatably affixed to the housing;
• the trigger being operable to control the flow of material to be applied through the housing and barrel and having further circuitry including a high voltage multiplier circuit mounted on the gun operably connected to a spray electrode located adjacent a distal end of the boring in the barrel;
• an improvement comprising:
• a hollow trigger guard spaced apart from the distribution system within the housing and from the boring through the barrel, said trigger guard has a first end affixed to the proximal end of the barrel of the spray gun;
• said high voltage multiplier circuit is modular and removably mounted within said trigger guard;
• a relatively low voltage input cable is affixed to a second end of said trigger guard and connected by electrical means for conduction to said high voltage multiplier module;
• switch means cooperating with said electrical means, to selectively apply, under manual control, a selected input signal to a low voltage input end of said high voltage multiplier module, whereby said gun may be used to apply hot material without degrading the electrical characteristics of said high voltage multiplier module.