Traffic light controller
First Claim
1. IN AN APPARATUS FOR CONTROLLING THE MOVEMENT OF TRAFFIC THROUGH THE INTERSECTION OF TWO STREETS, A SET OF TRAFFIC LIGHTS ON EACH STREET, A FIRST OPERATING RELAY HAVING DUAL MOVABLE CONTACTS, A FIXED CONTACT COOPERATING WITH ONE MOVABLE CONTACT AND A PAIR OF FIXED CONTACTS MEETING WITH THE OTHER MOVABLE CONTACT, A SECOND OPERATING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A FIRST LATCHING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A TIMING MEANS INCLUDING AN ELECTRON TUBE AND A CAPACITOR CONNECTED FROM GRID TO CATHODE OF THE LATTER, AND OPERATING CIRCUIT FOR THE FIRST OPERATING RELAY CLOSED BY BOTH MOVABLE AND MEETING FIXED CONTACTS OF THE SECOND OPERATING RELAY AND ONE MOVABLE AND MEETING FIXED CONTACT OF THE FIRST LATCHING RELAY INCLUDING THE TIMING MEANS, A FIRST CIRCUIT MEANS CLOSED BY ONE MOVABLE CONTACT AND ITS MEETING FIXED CONTACT OF THE FIRST OPERATING RELAY FOR ENERGIZING THE SET OF TRAFFIC LIGHTS ON ONE STREET, AN OPERATING CIRCUIT FOR THE SECOND OPERATING RELAY THROUGH THE OTHER MOVABLE CONTACT AND ONE MEETING FIXED CONTACT OF THE FIRST OPERATING RELAY AND THE OTHER MOVABLE CONTACT AND MEETING FIXED CONTACT OF THE FIRST LATCHING RELAY, A SECOND CIRCUIT MEANS CLOSED BY BOTH MOVABLE CONTACT AND THEIR MEETING FIXED CONTACTS OF THE SECOND OPERATING RELAY FOR ENERGIZING THE SET OF TRAFFIC LIGHTS ON THE OTHER STREET, A SECOND LATCHING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A VEHICLE OPERATED SWITCH, AN OPERATING CIRCUIT FOR THE SECOND LATCHING RELAY CLOSED BY THE VEHICLE OPERATED SWTICH, AN OPERATING CIRCUIT FOR THE FIRST LATCHING RELAY THROUGH ONE MOVABLE AND ONE MEETING FIXED CONTACT OF THE SECOND LATCHING RELAY AND THIRD CIRCUIT MEANS CONNECTED TO THE SET OF TRAFFIC LIGHTS ON THE FIRST STREET INCLUDING A RESISTOR AND A DIODE RECTIFIER IN SERIES THROUGH THE OTHER MOVABLE CONTACT AND MEETING FIXED CONTACT OF THE SECOND LATCHING RELAY TO THE TIMING DEVICE FOR APPLYING A COUNTER VOLTAGE TO THE LATTER.
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Accused Products
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Citations
1 Claim
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1. IN AN APPARATUS FOR CONTROLLING THE MOVEMENT OF TRAFFIC THROUGH THE INTERSECTION OF TWO STREETS, A SET OF TRAFFIC LIGHTS ON EACH STREET, A FIRST OPERATING RELAY HAVING DUAL MOVABLE CONTACTS, A FIXED CONTACT COOPERATING WITH ONE MOVABLE CONTACT AND A PAIR OF FIXED CONTACTS MEETING WITH THE OTHER MOVABLE CONTACT, A SECOND OPERATING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A FIRST LATCHING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A TIMING MEANS INCLUDING AN ELECTRON TUBE AND A CAPACITOR CONNECTED FROM GRID TO CATHODE OF THE LATTER, AND OPERATING CIRCUIT FOR THE FIRST OPERATING RELAY CLOSED BY BOTH MOVABLE AND MEETING FIXED CONTACTS OF THE SECOND OPERATING RELAY AND ONE MOVABLE AND MEETING FIXED CONTACT OF THE FIRST LATCHING RELAY INCLUDING THE TIMING MEANS, A FIRST CIRCUIT MEANS CLOSED BY ONE MOVABLE CONTACT AND ITS MEETING FIXED CONTACT OF THE FIRST OPERATING RELAY FOR ENERGIZING THE SET OF TRAFFIC LIGHTS ON ONE STREET, AN OPERATING CIRCUIT FOR THE SECOND OPERATING RELAY THROUGH THE OTHER MOVABLE CONTACT AND ONE MEETING FIXED CONTACT OF THE FIRST OPERATING RELAY AND THE OTHER MOVABLE CONTACT AND MEETING FIXED CONTACT OF THE FIRST LATCHING RELAY, A SECOND CIRCUIT MEANS CLOSED BY BOTH MOVABLE CONTACT AND THEIR MEETING FIXED CONTACTS OF THE SECOND OPERATING RELAY FOR ENERGIZING THE SET OF TRAFFIC LIGHTS ON THE OTHER STREET, A SECOND LATCHING RELAY HAVING DUAL MOVABLE CONTACTS AND A FIXED CONTACT MEETING WITH EACH MOVABLE CONTACT, A VEHICLE OPERATED SWITCH, AN OPERATING CIRCUIT FOR THE SECOND LATCHING RELAY CLOSED BY THE VEHICLE OPERATED SWTICH, AN OPERATING CIRCUIT FOR THE FIRST LATCHING RELAY THROUGH ONE MOVABLE AND ONE MEETING FIXED CONTACT OF THE SECOND LATCHING RELAY AND THIRD CIRCUIT MEANS CONNECTED TO THE SET OF TRAFFIC LIGHTS ON THE FIRST STREET INCLUDING A RESISTOR AND A DIODE RECTIFIER IN SERIES THROUGH THE OTHER MOVABLE CONTACT AND MEETING FIXED CONTACT OF THE SECOND LATCHING RELAY TO THE TIMING DEVICE FOR APPLYING A COUNTER VOLTAGE TO THE LATTER.
Specification
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- Resources
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Current AssigneeJohn C. Lesher
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Original AssigneeJohn C. Lesher
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InventorsLesher, John C.
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Application NumberUS04/164,047Time in Patent Office1,616 DaysField of SearchUS Class Current340/916CPC Class CodesG08G 1/08 according to detected numbe...
