US3290489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring vehicular traffic parameters
Assignee: SPX Technologies Inc
•
Filing: 1962-05-09
•
Granted: 1966-12-06
•
Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Auer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
APPARATUS FOR MEASURING VEHICULAR FLOW VELOCITY COMPRISING IN COMBINATION, MEANS RESPONSIVE TO THE PRESENCE OF A VEHICLE IN A DEFINED DETECTION ZONE ALONG A HIGHWAY OR THE LIKE FOR DEMARCATING THE OCCUPANCY TIME OF SAID VEHICLE IN SAID DETECTION ZONE, SIGNAL ACCUMULARTING MEANS, MEANS CONTROLLED BY SAID VEHICLE RESPONSIVE MEANS FOR ADDING TO THE SIGNAL STORED IN SAID ACCUMULATING MEANS OVER ANY INTERVAL AN AMOUNT OF SIGNAL PROPORTIONAL TO THE NUMBER OF VEHICLES DETECTED BY SAID VEHICLE RESPONSIVE MEANS IN SAID INTERVAL AND FOR ALSO SUBTRACTING FROM SAID SIGNAL IN SAID ACCUMULATING MEANS AN AMOUNT OF SIGNAL PROPORTIONAL TO THE CUMULATIE VEHICLE DETECTION PERIODS DEMARCATED BY SAID VEHICLE RESPONSIVE MEANS THROUGHOUT SUCH INTERVAL AND PROPORTIONAL ALSO TO THE VALUE OF SAID SIGNAL.
Claim 2
Dependent Claim
122 words
APPARATUS FOR MEASURING VEHICULAR FLOW VELOCITY COMPRISING IN COMBINATION, MEANS RESPONSIVE TO THE PRESENCE OF A VEHICLE IN A DEFINED DETECTION ZONE ALONG A HIGHWAY OR THE LIKE FOR DEMARCATING THE OCCUPANCY TIME OF SAID VEHICLE IN SAID DETECTION ZONE, SIGNAL ACCUMULARTING MEANS, MEANS CONTROLLED BY SAID VEHICLE RESPONSIVE MEANS FOR ADDING TO THE SIGNAL STORED IN SAID ACCUMULATING MEANS OVER ANY INTERVAL AN AMOUNT OF SIGNAL PROPORTIONAL TO THE NUMBER OF VEHICLES DETECTED BY SAID VEHICLE RESPONSIVE MEANS IN SAID INTERVAL AND FOR ALSO SUBTRACTING FROM SAID SIGNAL IN SAID ACCUMULATING MEANS AN AMOUNT OF SIGNAL PROPORTIONAL TO THE CUMULATIE VEHICLE DETECTION PERIODS DEMARCATED BY SAID VEHICLE RESPONSIVE MEANS THROUGHOUT SUCH INTERVAL AND PROPORTIONAL ALSO TO THE VALUE OF SAID SIGNAL.
References Cited (Backward Citations)
US2789761A
Cited
US3185959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |