Dust collector control system

Claim 1

A DUST COLLECTOR SYSTEM COMPRISING A PLURALITY OF DUST COLLECTOR UNITS, EACH DUST COLLECTOR UNIT INCLUDING A CASING HAVING AN INLET FOR DUST-LADEN GAS, AN OUTLET FOR FILTERED GAS, A FILTER MEDIUM THEREIN AND IN THE PATH OF THE FLOW OF GAS FROM THE INLET TO THE OUTLET AND AN EXHAUST OUTLET AT THE SIDE OF THE CASING, WITH RESPECT TO THE FILTER MEDIUM, AT WHICH THE INLET IS LOCATED, AN INLET CONDUIT CONNECTED TO THE INLET OF EACH CASING, AN EXHAUST CONDUIT CONNECTED TO THE EXHAUST OULET OF EACH CASING, MEANS FOR CAUSING A FLOW OF DUST-LADEN GAS THROUGH EACH INLET CONDUIT INTO ITS CONNECTED CASING, MEANS FOR WITHDRAWING GAS FROM EACH CASING THROUGH ITS CONNECTED EXHAUST CONDUIT FOR REVERSEGAS-FLOW CLEANING OF THE RESPECTIVE FILTER MEDIUM, A VALVE IN EACH INLET CONDUIT FOR CONTROLLING THE FLOW OF DUST-LADEN GAS THERETHROUGH INTO THE CONNECTED CASING, A VALVE IN EACH EXHAUST CONDUIT FOR CONTROLLING THE FLOW OF GAS THERETHROUGH FROM THE CASING, MEANS FOR OPENING AND CLOSING THE VALVES IN THE RESPECTIVE INLET CONDUITS, MEANS FOR OPENING AND CLOSING THE VALVES IN THE RESPECTIVE EXHAUST CONDUITS, A MAIN SUPPLY LINE FOR A MEDIUM FOR ACTUATING THE VALVE OPENING AND CLOSING MEANS FOR THE VALVES IN THE INLET CONDUITS AND THE VALVES IN THE EXHAUST CONDUITS, A MAIN BRANCH LINE LEADING FROM SAID MAIN SUPPLY LINE FOR EACH DUST COLLECTOR UNIT, A MANIFOLD, EACH OF SAID MAIN BRANCH LINES BEING CONNECTED TO SAID MANIFOLD, BRANCH LINES LEADING FROM EACH OF SAID MANIFOLD THE MEANS FOR OPENING AND CLLSING THE VALVES IN THE INLET AND EXHAUST CONDUITS OF THE RESPECTIVE DUST COLLECTOR UNITS FOR THE CONDUCTION OF AN ACTUATING FORCE TO SAID MEANS, MEANS FOR CONTROLLING THE TRANSMISSION OF THE ACTUATING FORCE THROUGH THE MAIN BRANCH LINES LEADING FROM THE MAIN SUPPLY LINE TO THE RESPECTIVE MANIFOLDS, MEANS FOR CONTROLLING THE FLOW OF THE ACTUATING FORCE FROM THE RESPECTIVE MANIFOLDS THROUGH EACH OF THE BRANCH LINES LEADING THEREFROM TO THE MEANS FOR OPENING AND CLOSING THE VALVES IN THE INLET AD EXHAUST CONDUITS, A TIMER HAVING A FIRST STAGE AND A SECOND STAGE, SWITCHES IN THE FIRST STAGE OF THE TIMER WHICH SELECTIVELY CONTROL THE ACTUATION OF THE MEANS FOR CONTROLLING THE FLOW OF ACTUATING FORCE FROM THE MAIN SUPPLY LINE THROUGH THE RESPECTIVE MAIN BRANCH LINES TO THE RESPECTIVE MANIFOLDS, SWITCHES IN THE SECOND STAGE OF THE TIMER FOR SELECTIVELY CONTROLLING THE ACTUATION OF THE MEANS FOR CONTROLLING THE FLOW OF THE ACTUATING FORCE FROM THE RESPECTIVE MANIFOLDS THROUGH THE RESPECTIVE BRANCH LINES LEADING TO THE MEANS FOR OPENING AND CLOSING THE RESPECTIVE VALVES IN THE INLET AND EXHAUST CONDUITS OF THE RESPECTIVE DUST COLLECTOR UNITS, AND MEANS FOR SELECTIVELY ACTUATING SAID SWITCHES OF THE TIMER FOR THE RESPECTIVE DUST COLLECTOR UNITS IN A PREDETERMINED SERIES ARRANGEMENT TO CAUSE THE ACTUATING FORCE TO BE SUPPLIED TO THE ACTUATING MEANS FOR THE VALVE IN THE INLET CONDUIT OF AT LEAST ONE, BUT NOT ALL, OF THE DUST COLLECTOR UNITS TO CLOSE THE VALVES IN SAID INLET CONDUCT AND FOR CAUSING THE ACTUATING FORCE TO BE SUPPLIED TO THE ACTUATING MEANS FOR THE VALVE IN THE EXHAUST CONDUIT OF THE SAME DUST COLLECTOR UNIT TO OPEN THAT VALVE, WHEREBY PREDETERMINED ONES OF SAID DUST COLLECTOR UNITS MAY BE SUBJECTED TO REVERSE-GAS-FLOW CLEANING WHILE THE REMAINDER OF THE DUST COLLECTOR UNITS CONTINUE TO FILER DUST-LADEN GASES.