US3112902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary actuator
Assignee: Individual
•
Filing: 1959-04-08
•
Granted: 1963-12-03
•
Expires: 1979-04-08
Abstract
No abstract record available.
Inventors
- 👤 Kongelbeck Sverre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:25
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; F15B9/09; B; B64; B64C; B64C13/00; B64C13/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN AN AERIAL VEHICLE HAVING AN EXTERIOR BODY FORMED WITH AN INWARDLY PROJECTING HUB, THE COMBINATION OF A FIN WITH A HOLLOW STUB SHAFT FOR ATTACHMENT TO THE BODY, A ROTARY ACTUATOR MOUNTED IN SAID HUB, SAID ACTUATOR HAVING A CONCENTRIC ROTOR SLEEVE DIRECTLY COUPLED TO SAID STUB SHAFT, A POSITION POTENTIOMETER DIRECTLY CONNECTED TO SAID ROTARY ACTUATOR, SAID POTENTIOMETER HAVING A SHAFT EXTENDING INTO THE INTERIOR END OF SAID ROTOR SLEEVE, AND RELEASABLE CLUTCH MEANS LOCKING SAID POTENTIOMETER SHAFT TO THE INTERIOR END OF SAID ROTOR SLEEVE, A SERVO VALVE MOUNTED ON SAID HUB, AND MEANS FOR CONVEYING FLUID UNDER PRESSURE FROM SAID SERVO VALVE TO SAID ACTUATOR FOR IMPARTING A LIMITED TURNING MOVEMENT TO SAID SLEEVE, WHEREBY THE POTENTIOMETER AND FIN SHAFTS ARE TURNED ACCORDING TO THE MOVEMENT OF SAID SLEEVE.
Claim 2
Dependent Claim
133 words
IN AN AERIAL VEHICLE HAVING AN EXTERIOR BODY FORMED WITH AN INWARDLY PROJECTING HUB, THE COMBINATION OF A FIN WITH A HOLLOW STUB SHAFT FOR ATTACHMENT TO THE BODY, A ROTARY ACTUATOR MOUNTED IN SAID HUB, SAID ACTUATOR HAVING A CONCENTRIC ROTOR SLEEVE DIRECTLY COUPLED TO SAID STUB SHAFT, A POSITION POTENTIOMETER DIRECTLY CONNECTED TO SAID ROTARY ACTUATOR, SAID POTENTIOMETER HAVING A SHAFT EXTENDING INTO THE INTERIOR END OF SAID ROTOR SLEEVE, AND RELEASABLE CLUTCH MEANS LOCKING SAID POTENTIOMETER SHAFT TO THE INTERIOR END OF SAID ROTOR SLEEVE, A SERVO VALVE MOUNTED ON SAID HUB, AND MEANS FOR CONVEYING FLUID UNDER PRESSURE FROM SAID SERVO VALVE TO SAID ACTUATOR FOR IMPARTING A LIMITED TURNING MOVEMENT TO SAID SLEEVE, WHEREBY THE POTENTIOMETER AND FIN SHAFTS ARE TURNED ACCORDING TO THE MOVEMENT OF SAID SLEEVE.
References Cited (Backward Citations)
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US2778338A
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US2870748A
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US2851982A
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US2996267A
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US2811834A
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US2972456A
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US2911956A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |