US3365147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for steerable craft
Assignee: Honeywell Inc
•
Filing: 1965-04-12
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Granted: 1968-01-23
•
Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 John A Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/36; B64G1/26; B64G1/28; B64G1/281; B64G1/369
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
IN A VEHICLE ROTATABLE ABOUT ITS SPIN AXIS WHILE HAVING A FLIGHT PATH RELATIVE TO THE EARTH, MEANS FOR MAINTAINING THE SPIN AXIS OF THE VEHICLE IN THE DIRECTION OF THE EARTH''S CENTER COMPRISING MEANS SENSING TILT OF THE CRAFT ABOUT THE VERTICAL FOR DEVELOPING A CONTROL SIGNAL, A LOW PASS FILTER MEANS RECEIVING SAID SIGNAL AND APPLYING THE OUTPUT OF THE FILTER TO ATTITUDE CHANGING MEANS OF THE VEHICLE, AND MEANS FOR ADJUSTING SAID FILTER FOR CHANGES IN SPIN RATE FROM A DATUM SPIN RATE TO OPPOSE FURTHER PHASE SHIFT OF THE FILTER OUTPUT OVER ITS INPUT.
Claim 2
Dependent Claim
98 words
IN A VEHICLE ROTATABLE ABOUT ITS SPIN AXIS WHILE HAVING A FLIGHT PATH RELATIVE TO THE EARTH, MEANS FOR MAINTAINING THE SPIN AXIS OF THE VEHICLE IN THE DIRECTION OF THE EARTH''S CENTER COMPRISING MEANS SENSING TILT OF THE CRAFT ABOUT THE VERTICAL FOR DEVELOPING A CONTROL SIGNAL, A LOW PASS FILTER MEANS RECEIVING SAID SIGNAL AND APPLYING THE OUTPUT OF THE FILTER TO ATTITUDE CHANGING MEANS OF THE VEHICLE, AND MEANS FOR ADJUSTING SAID FILTER FOR CHANGES IN SPIN RATE FROM A DATUM SPIN RATE TO OPPOSE FURTHER PHASE SHIFT OF THE FILTER OUTPUT OVER ITS INPUT.
Claim 3
Dependent Claim
33 words
IN A CONDITION CONTROL SYSTEM HAVING A CONDITION SENSOR PROVIDING A FUNDAMENTAL VARYING SIGNAL UPON CHANGE IN THE CONDITION, A FILTER RECEIVING SAID SIGNAL AND RESTRICTING PASSAGE OF THOSE SIGNALS AFFECTING THE SENSOR
Claim 4
Dependent Claim
33 words
IN A CONDITION CONTROL SYSTEM HAVING A CONDITION SENSOR PROVIDING A FUNDAMENTAL VARYING SIGNAL UPON CHANGE IN THE CONDITION, A FILTER RECEIVING SAID SIGNAL AND RESTRICTING PASSAGE OF THOSE SIGNALS AFFECTING THE SENSOR
References Cited (Backward Citations)
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Cited
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Cited
US2911598A
Cited
US3201591A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |