Control apparatus for gas cleaning devices

Claim 1

IN AN AIR CLEANER HAVING A PARTICLE COLLECTING AREA AND A TREATING MECHANISM FOR THE COLLECTING AREA INCLUDING A DRIVING MOTOR, A TREATING HEAD ADAPTED TO BE DRIVEN THEREBY TO PASS BACK AND FORTH ACROSS SAID COLLECTING AREA. AND TO PERFORM TREATING OPERATIONS THEREUPON AND A SEQUENCER FOR CONTROLLING THE OPERATION OF SAID TREATING MECHANISM TO PROVIDE A TREATING CYCLE INCLUDING PORTIONS OF THE CYCLE WHEREIN SAID HEAD IS MOVED ACROSS SAID COLLECTING AREA AND TREATING OPERATIONS ARE PERFORMED UPON SAID AREA AND PORTIONS OF THE CYCLE WHEREIN SAID HEAD IS HELD STATIONARY FOR FIXED PERIODS OF TIME, SIAD SEQUENCEER COMPRISING; A PROGRAAMMER OPERABLE THROUGH A PLURALITY OF POSITIONS FOR CONTROLLING THE OPERATION OF SAID DRIVING MOTOR DURING A TREATING CYCLE; ELECTRICALLY ENERGIZABLE ADVANCE MEANS OPERABLY ASSOCIATED WITH SAID PROGRAMMER AND RESPONSIVE TO ELECTRICAL SIGNALS TO DRIVE SAID PROGRAMMER THROUGH SAID PLURALITY OF POSITIONS; AN ENERGIZATION CIRCUIT FOR SAID DRIVING MOTOR; FIRST SWITCH MEANS IN SAID CIRCUIT FOR CONTROLLING ENERGIZATION OFSAID DRIVING MOTOR; FIRST SIGNAL MEANS OPERABLE IN RESPONSE TO MOVEMENT OF SAID TREATING HEAD FOR SUPPLYING AN ELECTRICAL SIGNAL UPON MOVEMENT OF SAID TREATING HEAD ACROSS SAID AREA; CIRCUIT MEANS INCLUDING SECOND SWITCH MEANS FOR ELECTRICALLY CON-