Patent US3346791A successfully refreshed from Google Patents.
US3346791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resolver controlled torquing system
Assignee: Bendix Corp
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Filing: 1964-07-15
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Granted: 1967-10-10
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Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 James E Brook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:08
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE COMBINATION COMPRISING A TORQUE INCLUDING MAGNETIR ROTOR AND STATOR FIELD WINDINGS ARRANGED IN COOPERATIVE RELATION TO THE MAGNETIC ROTOR TO APPLY A TORQUE TO THE ROTOR IN OPPOSITE SENSES, MEANS TO GENERATE AN ERROR SIGNAL TO CAUSE EXCITATION OF SAID FIELD WINDINGS IN SUCH A MANNER AS TO EFFECT THE SENSE OF THE TORQUE APPLIED TO THE MAGNETIC ROTOR, MEANS OPERABLE IN SYNCHRONISM WITH ANGULAR MOVEMENT OF THE MAGNETIC ROTOR TO SUPPLY ROTOR-TO-STATOR ANGLE SIGNALS, A PAIR OF CURRENT MODIFYING DEVICES OPERATIVELY CONNECTED TO SAID LAST MENTIONED MEANS AND EFFECTIVE TO MODIFY SAID ERROR SIGNAL FOR CONTROLLING EXCITATION OF SAID FIELD WINDINGS SO AS TO EFFECT A MAGNETIC FIELD ACTING ON THE MAGNETIC ROTOR TO PRODUCE AN OPTIMUM TORQUE AT VARYING ANGULAR ADJUSTED POSITIONS OF THE ROTOR.
Claim 2
Dependent Claim
128 words
THE COMBINATION COMPRISING A TORQUE INCLUDING MAGNETIR ROTOR AND STATOR FIELD WINDINGS ARRANGED IN COOPERATIVE RELATION TO THE MAGNETIC ROTOR TO APPLY A TORQUE TO THE ROTOR IN OPPOSITE SENSES, MEANS TO GENERATE AN ERROR SIGNAL TO CAUSE EXCITATION OF SAID FIELD WINDINGS IN SUCH A MANNER AS TO EFFECT THE SENSE OF THE TORQUE APPLIED TO THE MAGNETIC ROTOR, MEANS OPERABLE IN SYNCHRONISM WITH ANGULAR MOVEMENT OF THE MAGNETIC ROTOR TO SUPPLY ROTOR-TO-STATOR ANGLE SIGNALS, A PAIR OF CURRENT MODIFYING DEVICES OPERATIVELY CONNECTED TO SAID LAST MENTIONED MEANS AND EFFECTIVE TO MODIFY SAID ERROR SIGNAL FOR CONTROLLING EXCITATION OF SAID FIELD WINDINGS SO AS TO EFFECT A MAGNETIC FIELD ACTING ON THE MAGNETIC ROTOR TO PRODUCE AN OPTIMUM TORQUE AT VARYING ANGULAR ADJUSTED POSITIONS OF THE ROTOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |