Patent US3281782A successfully refreshed from Google Patents.
US3281782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic signal controller
Assignee: SPX Technologies Inc
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Filing: 1964-01-17
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Granted: 1966-10-25
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Klaus H Frielinghaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
IN A CONTROLLER FOR CONTROLLING TRAFFIC SIGNALS THROUGH A CYCLE OF OPERATION AT AN INTERSECTION OF INTERFERING TRAFFIC LANES COMPRISING, A RING COUNTER HAVING A PLURALITY OF DIFFERENT STEP EACH OF WHICH INCLUDES AT LEAST ONE MULTI-APERTURE FERRITE CORE OPERABLE TO A CLEAR CONDITION AND TO SET CONDITION, MEANS RESPONSIVE TO ANY SAID CORE WHEN IN A SET CONDITION TO CONTROL SAID TRAFFIC SIGNALS TO DISPLAY A PREDETERMINED COMBINATION OF SIGNAL INDICATIONS, BISTABLE MEANS COMPRISING A PAIR OF SINGLE APERTURE FERRITE CORES AND BEING OPERABLE REPEATEDLY BETWEEN ITS OPPOSITE CONDITIONS IN EACH OF WHICH A RESPECTIVE ONE OF SAID SINGLE APERTURE CORES IS IN A SET CONDITION, MEANS FOR COUPLING SAID BISTABLE MEANS WHILE OEPRATING IN A FIRST CONDITION OF OPERATION TO THE ODD-NUMBERED OF SAID STEPS OF SAID RING COUNTER AND COUPLING SAID BISTABLE MEANS WHILE OPERATING IN ITS SECOND CONDITION TO THE EVEN-NUMBERED OF SAID STEPS OF SAID RING COUNTER, MEANS CONTROLLED BY SAID RING COUNTER FOR MEASURING A TIME INTERVAL FOR EACH OF SAID PLURALITY OF DIFFERENT STEPS DURING WHICH SAID RING COUNTER IS OPERABLE, SAID BISTABLE MEANS BEING RESPONSIVE TO SAID MEASURING MEANS UPON MEASUREMENT OF A TIME INTERVAL FOR ELEC-
Claim 2
Dependent Claim
195 words
IN A CONTROLLER FOR CONTROLLING TRAFFIC SIGNALS THROUGH A CYCLE OF OPERATION AT AN INTERSECTION OF INTERFERING TRAFFIC LANES COMPRISING, A RING COUNTER HAVING A PLURALITY OF DIFFERENT STEP EACH OF WHICH INCLUDES AT LEAST ONE MULTI-APERTURE FERRITE CORE OPERABLE TO A CLEAR CONDITION AND TO SET CONDITION, MEANS RESPONSIVE TO ANY SAID CORE WHEN IN A SET CONDITION TO CONTROL SAID TRAFFIC SIGNALS TO DISPLAY A PREDETERMINED COMBINATION OF SIGNAL INDICATIONS, BISTABLE MEANS COMPRISING A PAIR OF SINGLE APERTURE FERRITE CORES AND BEING OPERABLE REPEATEDLY BETWEEN ITS OPPOSITE CONDITIONS IN EACH OF WHICH A RESPECTIVE ONE OF SAID SINGLE APERTURE CORES IS IN A SET CONDITION, MEANS FOR COUPLING SAID BISTABLE MEANS WHILE OEPRATING IN A FIRST CONDITION OF OPERATION TO THE ODD-NUMBERED OF SAID STEPS OF SAID RING COUNTER AND COUPLING SAID BISTABLE MEANS WHILE OPERATING IN ITS SECOND CONDITION TO THE EVEN-NUMBERED OF SAID STEPS OF SAID RING COUNTER, MEANS CONTROLLED BY SAID RING COUNTER FOR MEASURING A TIME INTERVAL FOR EACH OF SAID PLURALITY OF DIFFERENT STEPS DURING WHICH SAID RING COUNTER IS OPERABLE, SAID BISTABLE MEANS BEING RESPONSIVE TO SAID MEASURING MEANS UPON MEASUREMENT OF A TIME INTERVAL FOR ELEC-
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |