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Automatic traffic directing system for garages

  • US 3,158,836 A
  • Filed: 01/23/1961
  • Issued: 11/24/1964
  • Est. Priority Date: 01/23/1961
  • Status: Expired due to Term
First Claim
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6. A TRAFFIC ROUTING SYSTEM FOR A PARKING GARAGE HAVING A PLURALITY OF INDEPENDENTLY ACCESSIBLE PARKING AREAS EACH HAVING AT LEAST ONE ENTRANCEWAY AND ONE EXITWAY, VEHICLE REGISTERING MEANS AT EACH ENTRANCEWAY AND EACH EXITWAY AND RESPONSIVE TO EACH VEHICLE PASSING THERETHROUGH, DIFFERENTIAL COUNTING MEANS FOR EACH AREA OPERATIVELY CONNECTED TO ALL THE VEHICLE REGISTERING MEANS ASSOCIATED WITH SAID AREA SO AS TO ADVANCE A COUNT IN ONE DIRECTION FOR EACH VEHICLE ENTERING SAID AREA AND TO ADVANCE A COUNT IN THE OPPOSITE DIRECTION FOR EACH VEHICLE LEAVING SAID AREA, TRAFFIC DIRECTING MEANS GOVERNED BY SAID DIFFERENTIAL COUNTING MEANS FOR DIRECTING VEHICLES INTO SAID AREA ONLY IF THE NUMBER OF VEHICLES ALREADY IN SAID AREA IS LESS THAN THE PARKING CAPACITY OF SAID AREA, AND AUXILIARY COUNTING MEANS OPERATIVELY CONNECTED TO SAID VEHICLE REGISTERING MEANS FOR SAID ENTRANCEWAYS FOR CONTROLLING SAID TRAFFIC DIRECTING MEANS TO ROUTE TRAFFIC AWAY FROM SAID AREA EVEN THOUGH THERE ARE AVAILABLE PARKING SPACES THEREIN WHEN A PREDETERMINED PLURALITY OF CLOSELY FOLLOWING VEHICLES HAVE WITHIN A PREDETERMINED SHORT TIME INTERVAL BEEN REGISTERED AS ENTERING SAID AREA.

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