Controls for electrostatic spraying apparatus

Claim 1

A CONTROL FOR LIQUID SPRAYING MATERIAL UTILIZED IN ELECTROSTATIC SPRAYING APPARATUS, THE COMBINATIN OF A HOUSING HAVING A VALVE SEAT THEREIN, AN INPUT AND AN OUTPUT BOTH COMMUNICATING WITH THE VALVE SEAT FOR TRANSFERRING THE LIQUID MATERIAL THEREBETWEEN, A FLEXIBLE DIAPHRAGM MOUNTED IN THE HOUSING ADJACENT THE VALVE SEAT AND DEFLECTABLE FROM A NORMAL POSITION TO AN ENGAGED POSITION RELATIVE TO THE VALVE SEAT SO AS TO PREVENT COMMUNICATION BETWEEN THE INPUT AND THE OUTPUT, A SOURCE OF CONTROL PRESSURE FOR DEFLECTING THE DIAPHRAGM TO THE ENGAGED POSITION, A SEALING ELEMENT ENGAGEABLE WITH THE FLEXIBLE DIAPHRAGM AND OPERATIVE TO PREVENT COMMINGLING OF THE LIQUID MATERIAL AND THE CONTROL PRESSURE, AND MEANS CONNECTING THE SOURCE OF CONTROL PRESSURE TO THE DIAPHRAGM; THE CONNECTING MEANS INCLUDING AN EXHAUST OPENING AND A SEALING ELEMENT ENGAGING SURFACE FOR COMPRESSING THE SEALING ELEMENT A PREDETERMINED AMOUNT AND MANUALLY OPERABLE MEANS SELECTIVELY OPERATIVE TO CONNECT THE SOURCE TO THE FLEXIBLE DIAPHRAGM SO AS TO CAUSE THE FLEXIBLE DIAPHRAGM TO BE DEFLECTED TO THE ENGAGED POSITION AND THEREBY INTERRUPT COMMUNICATING BETWEEN THE INPUT AND OUTPUT AND FOR DISCONNECTING THE SOURCE FROM THE DIAPHRAGM SO THAT THE PRESSURE ACTING ON THE DIAPHRAGM IS RELIEVED BY WAY OF THE EXHAUST OPENING.