Patent US3077552A successfully refreshed from Google Patents.
US3077552A
Expired / Lapsed
US
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Motor control system
Assignee: Elsag Bailey Inc
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Filing: 1960-04-29
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Granted: 1963-02-12
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Expires: 1980-04-29
Abstract
No abstract record available.
Inventors
- 👤 Harold H Koppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:07
CPC Classifications
G; G05; G05B; G05B24/00; G05B24/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A CONTROL SYSTEM HAVING A CONTROL ELEMENT AND A DEVICE RESPONSIVE TO A VARIABLE ELECTRIC SIGNAL FOR OPERATING SAID CONTROL ELEMENT, THE COMBINATION COMPRISING, A FIRST CONTROLLER HAVING A VARIABLE OUTPUT SIGNAL, A SECOND CONTROLLER HAVING A VARIABLE OUTPUT SIGNAL, TRANSFER MEANS FOR SELECTIVELY CONNECTING THE OUTPUT OF ONE OR THE OTHER OF SAID CONTROLLERS TO THE OPERATING DEVICE, A MEMBER OPERATIVE BETWEEN POSITIONS FOR INITIATING A TRANSFER OF CONTROL OF THE CONTROL ELEMENT FROM SAID FIRST CONTROLLER OR VICE VERSA TO SAID SECOND CONTROLLER, MEANS EFFECTIVE UPON OPERATION OF SAID MEMBER TO TRANSFER CONTROL TO EITHER CONTROLLER TO AUTOMATICALLY EFFECT EQUALIZATION OF THE OUTPUTS OF SAID FIRST AND SECOND CONTROLLERS, AND MEANS RESPONSIVE TO A CONDITION OF COINCIDENCE OF SAID OUTPUTS DURING OPERATION OF THE LAST SAID MEANS TO ACTUATE SAID TRANSFER MEANS TO ACTUALLY TRANSFER CONTROL BETWEEN SAID CONTROLLERS.
Claim 2
Dependent Claim
142 words
IN A CONTROL SYSTEM HAVING A CONTROL ELEMENT AND A DEVICE RESPONSIVE TO A VARIABLE ELECTRIC SIGNAL FOR OPERATING SAID CONTROL ELEMENT, THE COMBINATION COMPRISING, A FIRST CONTROLLER HAVING A VARIABLE OUTPUT SIGNAL, A SECOND CONTROLLER HAVING A VARIABLE OUTPUT SIGNAL, TRANSFER MEANS FOR SELECTIVELY CONNECTING THE OUTPUT OF ONE OR THE OTHER OF SAID CONTROLLERS TO THE OPERATING DEVICE, A MEMBER OPERATIVE BETWEEN POSITIONS FOR INITIATING A TRANSFER OF CONTROL OF THE CONTROL ELEMENT FROM SAID FIRST CONTROLLER OR VICE VERSA TO SAID SECOND CONTROLLER, MEANS EFFECTIVE UPON OPERATION OF SAID MEMBER TO TRANSFER CONTROL TO EITHER CONTROLLER TO AUTOMATICALLY EFFECT EQUALIZATION OF THE OUTPUTS OF SAID FIRST AND SECOND CONTROLLERS, AND MEANS RESPONSIVE TO A CONDITION OF COINCIDENCE OF SAID OUTPUTS DURING OPERATION OF THE LAST SAID MEANS TO ACTUATE SAID TRANSFER MEANS TO ACTUALLY TRANSFER CONTROL BETWEEN SAID CONTROLLERS.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |