Patent US3290562A successfully refreshed from Google Patents.
US3290562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-synchronized controller for "bumpless" transfer between manual and automatic modes
Assignee: General Electric Co
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Filing: 1963-12-10
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Granted: 1966-12-06
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Expires: 1983-12-10
Abstract
No abstract record available.
Inventors
- 👤 Leroy M Faulkner
- 👤 Jr Clarence W Hewlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:53
CPC Classifications
G; G05; G05B; G05B7/00; G05B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A SYSTEM FOR SYNCHRONIZING A CONTROLLER WHICH IS CAPABLE OF AUTOMATIC AND MANUAL CONTROL TO PREVENT THE DISRUPTION OF THE CONTROLLED PROCESS WHEN SWITCHING BETWEEN ITS AUTOMATIC AND MANUAL MODES OF OPERATION COMPRISING SIGNAL AMPLIFYING MEANS, SIGNAL INTEGRATING MEANS INCLUDING MEANS FOR PROVIDING AN OUTPUT SIGNAL WHICH IS PROPORTIONAL TO THE INTEGRAL OF A SIGNAL APPLIED TO THE INPUT OF SAID SIGNAL INTEGRATING MEANS, A PROCESS LOAD ELECTRICALLY COUPLED TO THE OUTPUT OF SAID SIGNAL INTEGRATING MEANS, A SOURCE OF ERROR SIGNALS, MEANS FOR CONNECTING SAID SOURCE OF ERROR SIGNALS TO THE INPUT OF SAID SIGNAL AMPLIFYING MEANS, MEANS FOR OBTAINING A SIGNAL WHICH IS EQUAL TO THE DIFFERENCE BETWEEN THE OUTPUT SIGNALS OF SAID SIGNAL AMPLIFYING MEANS AND SAID SIGNAL INTEGRATING MEANS
Claim 2
Independent Claim
123 words
A SYSTEM FOR SYNCHRONIZING A CONTROLLER WHICH IS CAPABLE OF AUTOMATIC AND MANUAL CONTROL TO PREVENT THE DISRUPTION OF THE CONTROLLED PROCESS WHEN SWITCHING BETWEEN ITS AUTOMATIC AND MANUAL MODES OF OPERATION COMPRISING SIGNAL AMPLIFYING MEANS, SIGNAL INTEGRATING MEANS INCLUDING MEANS FOR PROVIDING AN OUTPUT SIGNAL WHICH IS PROPORTIONAL TO THE INTEGRAL OF A SIGNAL APPLIED TO THE INPUT OF SAID SIGNAL INTEGRATING MEANS, A PROCESS LOAD ELECTRICALLY COUPLED TO THE OUTPUT OF SAID SIGNAL INTEGRATING MEANS, A SOURCE OF ERROR SIGNALS, MEANS FOR CONNECTING SAID SOURCE OF ERROR SIGNALS TO THE INPUT OF SAID SIGNAL AMPLIFYING MEANS, MEANS FOR OBTAINING A SIGNAL WHICH IS EQUAL TO THE DIFFERENCE BETWEEN THE OUTPUT SIGNALS OF SAID SIGNAL AMPLIFYING MEANS AND SAID SIGNAL INTEGRATING MEANS
References Cited (Backward Citations)
US3246250A
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 |