US3482208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic signal control system
Assignee: SPX Technologies Inc
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Filing: 1966-02-21
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Granted: 1969-12-02
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 John H Auer Jr
- 👤 Jerry P Huffman
- 👤 Roger P Van Wormer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A SYSTEM FOR CONTROLLING THE SIGNAL INDICATIONS DISPLAYED BY TRAFFIC SIGNALS AT AN INTERSECTION COMPRISING: A MASTER CONTROLLER AND AN INTERSECTION CONTROLLER OPERATIVELY CONNECTED VIA A LINE COMMUNICATION CIRCUIT; SAID INTERSECTION CONTROLLER INCLUDING, VEHICLE-RESPONSIVE MEANS, MEANS RESPONSIVE TO SAID VEHICLE-RESPONSIVE MEANS FOR TRANSMITTING DIGITAL INDICATION CODE MESSAGES TO SAID MASTER CONTROLLER INDICATIVE OF THE DETECTION OF A VEHICLE BY SAID VEHICLE-RESPONSIVE MEANS, STORAGE MEANS FOR STORING THE LATEST RECEIVED CODE FROM SAID MASTER CONTROLLER, CONTROL MEANS RESPONSIVE TO THE RECEPTION OF A COMPLETE MESSAGE FOR REMOVING FROM SAID STORAGE MEANS THE MESSAGE STORED THEREIN AND SUBSTITUTING THEREFORE THE LATEST RECEIVED MESSAGE, STANDBY APPARATUS EFFECTIVE WHEN PLACED INTO OPERATION TO PLACE SUCCESSIVE, DIFFERENT CODES INTO SAID STORAGE MEANS AT PREDETERMINED INTERVALS, MEANS RESPONSIVE TO SAID STORAGE MEANS FOR AT TIMES RENDERING SAID STANDBY APPARATUS OPERABLE, AND MEANS RESPONSIVE TO THE REPEATED RECEPTION OF COMPLETE CODE MESSAGES BY SAID INTERSECTION CONTROLLER FOR MAINTAINING SAID STANDBY APPARATUS INOPERABLE; AND MEANS RESPONSIVE TO SAID CODE MESSAGES STORED IN SAID STORAGE MEANS FOR SELECTIVELY CONTROLLING THE DISPLAY OF A PREDETERMINED COMBINATION OF SIGNAL LAMPS.
Claim 2
Independent Claim
179 words
A SYSTEM FOR CONTROLLING THE SIGNAL INDICATIONS DISPLAYED BY TRAFFIC SIGNALS AT AN INTERSECTION COMPRISING: A MASTER CONTROLLER AND AN INTERSECTION CONTROLLER OPERATIVELY CONNECTED VIA A LINE COMMUNICATION CIRCUIT; SAID INTERSECTION CONTROLLER INCLUDING, VEHICLE-RESPONSIVE MEANS, MEANS RESPONSIVE TO SAID VEHICLE-RESPONSIVE MEANS FOR TRANSMITTING DIGITAL INDICATION CODE MESSAGES TO SAID MASTER CONTROLLER INDICATIVE OF THE DETECTION OF A VEHICLE BY SAID VEHICLE-RESPONSIVE MEANS, STORAGE MEANS FOR STORING THE LATEST RECEIVED CODE FROM SAID MASTER CONTROLLER, CONTROL MEANS RESPONSIVE TO THE RECEPTION OF A COMPLETE MESSAGE FOR REMOVING FROM SAID STORAGE MEANS THE MESSAGE STORED THEREIN AND SUBSTITUTING THEREFORE THE LATEST RECEIVED MESSAGE, STANDBY APPARATUS EFFECTIVE WHEN PLACED INTO OPERATION TO PLACE SUCCESSIVE, DIFFERENT CODES INTO SAID STORAGE MEANS AT PREDETERMINED INTERVALS, MEANS RESPONSIVE TO SAID STORAGE MEANS FOR AT TIMES RENDERING SAID STANDBY APPARATUS OPERABLE, AND MEANS RESPONSIVE TO THE REPEATED RECEPTION OF COMPLETE CODE MESSAGES BY SAID INTERSECTION CONTROLLER FOR MAINTAINING SAID STANDBY APPARATUS INOPERABLE; AND MEANS RESPONSIVE TO SAID CODE MESSAGES STORED IN SAID STORAGE MEANS FOR SELECTIVELY CONTROLLING THE DISPLAY OF A PREDETERMINED COMBINATION OF SIGNAL LAMPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |