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Patent US3223357A successfully refreshed from Google Patents.
US3223357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft proportional navigation
Assignee: Individual
•
Filing: 1962-06-12
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Granted: 1965-12-14
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Bruecker-Steinkuhl Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:14
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A AIRCRAFT HAVING STEERING MECHANISM AND SERVOMOTOR MEANS FOR ADJUSTING THE STEERING MECHANISM TO DIRECT THE AIRCRAFT TOWARD AN OBJECTIVE, A REGULATING APPARATUS ON THE AIRCRAFT FOR IMPROVING THE PROPORTIONAL NAVIGATION OF THE AIRCRAFT COMPRISING: MEANS FOR MEASURING THE ANGULAR VELOCITY OF THE LINE OF SIGHT FROM THE AIRCRAFT TO AN OBJECTIVE AND FOR COVERTING THE MEASUREMENT INTO A FIRST ELECTRIC POTENTIAL; MEANS FOR MEASURING THE ANGULAR VELOCITY O THE DIRECTION OF FLIGHT OF THE AIRCRAFT AND FOR CONVERTING THE DIRECTION OFFLIGHT OF THE AIRCRAFT TRICAL POTENTIAL; MEANS FOR MULTIPLYING SAID FIRST ELECTRICAL POTENTIAL BY AN ARBITRARY CONSTANT TO PROVIDE A COMMAND VALUE; A MIXER STATION HAVING MEANS FOR MEASURING THE DIFFERENCE BETWEEN SAID SECOND ELECTRICAL POTENTIAL AN SAID COMMAND VALUE; AND MEANS FOR AMPLIFYING SAID DIFFERENCE AND FEEDING IT TO SAID SERVOMOTOR MEANS FOR ADJUSTING SAID STEERING MECHANISM.
Claim 2
Dependent Claim
140 words
IN A AIRCRAFT HAVING STEERING MECHANISM AND SERVOMOTOR MEANS FOR ADJUSTING THE STEERING MECHANISM TO DIRECT THE AIRCRAFT TOWARD AN OBJECTIVE, A REGULATING APPARATUS ON THE AIRCRAFT FOR IMPROVING THE PROPORTIONAL NAVIGATION OF THE AIRCRAFT COMPRISING: MEANS FOR MEASURING THE ANGULAR VELOCITY OF THE LINE OF SIGHT FROM THE AIRCRAFT TO AN OBJECTIVE AND FOR COVERTING THE MEASUREMENT INTO A FIRST ELECTRIC POTENTIAL; MEANS FOR MEASURING THE ANGULAR VELOCITY O THE DIRECTION OF FLIGHT OF THE AIRCRAFT AND FOR CONVERTING THE DIRECTION OFFLIGHT OF THE AIRCRAFT TRICAL POTENTIAL; MEANS FOR MULTIPLYING SAID FIRST ELECTRICAL POTENTIAL BY AN ARBITRARY CONSTANT TO PROVIDE A COMMAND VALUE; A MIXER STATION HAVING MEANS FOR MEASURING THE DIFFERENCE BETWEEN SAID SECOND ELECTRICAL POTENTIAL AN SAID COMMAND VALUE; AND MEANS FOR AMPLIFYING SAID DIFFERENCE AND FEEDING IT TO SAID SERVOMOTOR MEANS FOR ADJUSTING SAID STEERING MECHANISM.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |