Patent ID: 8827191

Claim:
An automatic powder coating spray applicator, comprising: a three piece housing having an inlet end and an outlet end; said housing having a rearward section, a middle section and a forward section; said forward section having a spray nozzle attached to its forward end, a charging electrode and an open rearward end; said middle section being longer than said rearward section and comprising a tubular section having two open ends; said rearward section entirely enclosing a voltage multiplier and having an open front end and a rearward end closed off by a heat sink plate for said multiplier, said heat sink plate including a powder coating material connection and an electrical connection; a first open end of said middle section being secured to and separable from said open front end of said rearward section; a second open end of said middle section being secured to and separable from said open rearward end of said forward section; a powder flow path extending through the housing from said inlet end to said outlet end, wherein said powder flow path is a straight powder path from said inlet end to said outlet end of said three piece housing; and an electrical cable that extends from an outlet of said multiplier in said rearward section through said middle section to a current limiting resistive device that is electrically coupled to said cable and said electrode, said three piece housing being releasably secured together by a tube having a forward portion that is secured to said housing forward section and a rearward portion that engages a member that holds said tube in tension to secure said housing forward section, middle section and rearward section together in compression.