US3286091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle traffic control system
Assignee: SPX Technologies Inc
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Filing: 1963-06-03
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Granted: 1966-11-15
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Glenn O Ferm
- 👤 Gordon W Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:21
CPC Classifications
B; B61; B61L; B61L21/00; B61L21/06; B61L23/00; B61L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A SYSTEM FOR CONTROLLING VEHICULAR TRAFFIC ON A RIGHT OF WAY HAVING A STRETCH OF SINGLE TRACK WHICH SPACED WAYSIDE CONTROL LOCATIONS AT RESPECTIVE PASSING SIDINGS THEREALONG, THE COMBINATION OF: (A) FIRST COMMUNICATION CIRCUITS MEANS INTERCONNECTING SAID WAYSIDE CONTROL LOCATIONS FOR COMMUNICATING INFORMATION BETWEEN SAID LOCATIONS DISTINCTIVE OF TRAFFIC CONDITIONS ALONG SAID RIGHT OF WAY, SAID FIRST COMMUNICATION CIRCUIT MEANS COMPRISING A LINE CIRCUIT EXTENDING ALONG SAID TRACK STRETCH TO INTERCONNECT THE ENDS OF SAID PASSINGS SIDINGS, SAID LINE CIRCUIT HAVING PULSES OF PREDETERMINED POLARITIES SELECTED IN ACCORDANCE WITH TRAFFIC CONDITIONS ALONG SAID TRACK STRETCH TRANSMITTED THERETHROUGH BETWEEN THE ENDS OF SAID PASSING SIDINGS, (B) SECOND COMMUNICATING MEANS CONNECTING THE WAYSIDE TO A VEHICLE ON SAID RIGHT OF WAY FOR COMMUNICATING INFORMATION OF SAID VEHICLE DISTINCTIVE OF THE DESIRED PERFORMANCE OF SAID VEHICLE ON SAID RIGHT OF WAY IN ACCORDANCE WITH THE TRAFFIC DISTINCTIVE INFORMATION BEING RECEIVED AT SAID CONTROL LOCATIONS
Claim 2
Dependent Claim
152 words
IN A SYSTEM FOR CONTROLLING VEHICULAR TRAFFIC ON A RIGHT OF WAY HAVING A STRETCH OF SINGLE TRACK WHICH SPACED WAYSIDE CONTROL LOCATIONS AT RESPECTIVE PASSING SIDINGS THEREALONG, THE COMBINATION OF: (A) FIRST COMMUNICATION CIRCUITS MEANS INTERCONNECTING SAID WAYSIDE CONTROL LOCATIONS FOR COMMUNICATING INFORMATION BETWEEN SAID LOCATIONS DISTINCTIVE OF TRAFFIC CONDITIONS ALONG SAID RIGHT OF WAY, SAID FIRST COMMUNICATION CIRCUIT MEANS COMPRISING A LINE CIRCUIT EXTENDING ALONG SAID TRACK STRETCH TO INTERCONNECT THE ENDS OF SAID PASSINGS SIDINGS, SAID LINE CIRCUIT HAVING PULSES OF PREDETERMINED POLARITIES SELECTED IN ACCORDANCE WITH TRAFFIC CONDITIONS ALONG SAID TRACK STRETCH TRANSMITTED THERETHROUGH BETWEEN THE ENDS OF SAID PASSING SIDINGS, (B) SECOND COMMUNICATING MEANS CONNECTING THE WAYSIDE TO A VEHICLE ON SAID RIGHT OF WAY FOR COMMUNICATING INFORMATION OF SAID VEHICLE DISTINCTIVE OF THE DESIRED PERFORMANCE OF SAID VEHICLE ON SAID RIGHT OF WAY IN ACCORDANCE WITH THE TRAFFIC DISTINCTIVE INFORMATION BEING RECEIVED AT SAID CONTROL LOCATIONS
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |