US3479492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Elsag Bailey Inc
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Filing: 1963-06-06
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Granted: 1969-11-18
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Hornfeck
- 👤 Harold H Koppel
- 👤 John R Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:12
CPC Classifications
G; G05; G05B; G05B7/00; G05B7/02; G05B11/00; G05B11/01; G05B11/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN AN ELECTRIC CONTROL SYSTEM, THE COMBINATION COMPRISING, MEANS RESPONSIVE TO A VARIABLE FOR ESTABLISHING A FIRST ELECTRIC SIGNAL PROPORTIONAL TO THE DEVIATION OF THE VARIABLE FROM A PREDETERMINED VALUE, AN ELECTRIC CONTROLLER RESPONSIVE TO SAID FIRST SIGNAL HAVING A FEEDBACK CIRCUIT INCLUDING AN IMPEDANCE PRODUCING A CONTROLLER OUTPUT SIGNAL VARYING IN ACCORDANCE WITH THE TIME INTEGRAL OF SAID FIRST SIGNAL, ELECTRICALLY OPERATIVE CONTROL MEANS RESPONSIVE TO SAID OUTPUT SIGNAL FOR VARYING THE MAGNITUDE OF THE VARIABLE, MEANS FOR ESTABLISHING A SECOND ELECTRIC SIGNAL, TRANSFER MEANS HAVING A FIRST POSITION FOR APPLYING SAID CONTROLLER OUTPUT SIGNAL TO SAID CONTROL MEANS AND A SECOND POSITION FOR APPLYING SAID SECOND ELECTRIC SIGNAL TO SAID CONTROL MEANS TO SELECTIVELY OPERATE SAID CONTROL MEANS FROM SAID CONTROLLER OUTPUT SIGNAL OR SAID SECOND SIGNAL AND MEANS FOR PRODUCING AN ELECTRICAL EFFECT IN SAID CONTROLLER WHEN SAID TRANSFER MEANS IS IN SAID SECOND POSITION TO INHIBIT SAID CONTROLLER OUTPUT SIGNAL FROM VARYING IN ACCORDANCE WITH THE TIME INTEGRAL OF SAID FIRST SIGNAL.
Claim 2
Dependent Claim
166 words
IN AN ELECTRIC CONTROL SYSTEM, THE COMBINATION COMPRISING, MEANS RESPONSIVE TO A VARIABLE FOR ESTABLISHING A FIRST ELECTRIC SIGNAL PROPORTIONAL TO THE DEVIATION OF THE VARIABLE FROM A PREDETERMINED VALUE, AN ELECTRIC CONTROLLER RESPONSIVE TO SAID FIRST SIGNAL HAVING A FEEDBACK CIRCUIT INCLUDING AN IMPEDANCE PRODUCING A CONTROLLER OUTPUT SIGNAL VARYING IN ACCORDANCE WITH THE TIME INTEGRAL OF SAID FIRST SIGNAL, ELECTRICALLY OPERATIVE CONTROL MEANS RESPONSIVE TO SAID OUTPUT SIGNAL FOR VARYING THE MAGNITUDE OF THE VARIABLE, MEANS FOR ESTABLISHING A SECOND ELECTRIC SIGNAL, TRANSFER MEANS HAVING A FIRST POSITION FOR APPLYING SAID CONTROLLER OUTPUT SIGNAL TO SAID CONTROL MEANS AND A SECOND POSITION FOR APPLYING SAID SECOND ELECTRIC SIGNAL TO SAID CONTROL MEANS TO SELECTIVELY OPERATE SAID CONTROL MEANS FROM SAID CONTROLLER OUTPUT SIGNAL OR SAID SECOND SIGNAL AND MEANS FOR PRODUCING AN ELECTRICAL EFFECT IN SAID CONTROLLER WHEN SAID TRANSFER MEANS IS IN SAID SECOND POSITION TO INHIBIT SAID CONTROLLER OUTPUT SIGNAL FROM VARYING IN ACCORDANCE WITH THE TIME INTEGRAL OF SAID FIRST SIGNAL.
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) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |