Electrostatic gas cleaning apparatus

Claim 1

AN ELECTROSTATIC PRECIPITATOR FOR TREATING A DIRTY GAS STREAM COMPRISING A HOUSING HAVING SPACED OPPOSED GAS INLET AND GAS OUTLET OPENINGS, GAS CLEANING MEANS DISPOSED WITHIN SAID HOUSING INTERMEDIATE SAID SPACED OPENINGS, FLUID HEADER MEANS INCLUDING FLUID DISTRIBUTING NOZZLES TO DISTRIBUTE FLUID TO SAID GAS CLEANING MEANS TO PROVIDE FLUID TREATMENT FOR SAID GAS CLEANING MEANS, POWER MEANS CONNECTED TO SAID FLUID HEADER MEANS TO RECIPROCATE SAID FLUID HEADER MEANS IN A PREDETERMINED PATH OF MOVEMMENT ACROSS A FACE OF SAID GAS CLEANING MEANS, ACTUATING MEANS ON SAID HEADER MEANS, AND CONTROL MEANS INCLUDING A SQUENCING SWITCH ASSEMBLY TO CONTROL THE "ON-OFF" FLOW OF FLUID TO SAID HEADER MEANS, SAID SEQUENCING SWITCH ASSEMBLY INCLUDING A SWITCH, A SWITCH OPERATING MEMBER AND A MOVABLE PROGRAMMING MEMBER CONNECTED TO SAID SWITCH OPERATING MEMBER, SAID PROGRAMMING MEMBER BEING POSITIONED IN THE PATH OF MOVEMENT OF SAID ACTUATING MEANS ON SAID HEADER TO BE MOVED A PRESELECTED INCREMENT WITH EACH PASS OF SAID HEADER TO THEREBY PROGRAM SAID SWITCH OPERATING MEMBER TO SELECTIVELY OPERATE SAID SWITCH AND CONTROL THE "ON-OFF" FLOW OF FLUID TO SAID HEADER MEANS IN ACCORDANCE WITH A PRESELECTED NUMBER OF PASSES OF SAID FLUID HEADER MEANS ACROSS THE FRAME OF SAID GAS CLEANING MEANS.