Patent US4322995A successfully refreshed from Google Patents.
Patent US3147626A successfully refreshed from Google Patents.
US3147626A
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Inertial system alinement
Assignee: North American Aviation Corp
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Filing: 1958-12-11
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Granted: 1964-09-08
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Expires: 1978-12-11
Abstract
No abstract record available.
Inventors
- 👤 John J Fischer
- 👤 Robert V Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:55
CPC Classifications
G; G01; G01C; G01C25/00; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD FOR MEASURING THE DEVIATION ANGLE BETWEEN A LINE HAVING A FIXED ANGULAR RELATIONSHIP TO AN EXTERNAL REFERENCE LINE AND AN INTERNAL REFERENCE LINE OF AN INERTIAL SYSTEM HAVING INERTIAL MEANS FOR GENERATING ACCELERATION SIGNALS INDICATIVE OF ACCELERATION OF SAID SYSTEM IN A DIRECTION HAVING A FIXED ANGULAR RELATION TO SAID INTERNAL REFERENCE LINE, COMPRISING THE STEPS OF EFFECTING TRANSLATIONAL MOTION OF SAID SYSTEM BETWEEN TWO POINTS WHICH DEFINE A DIRECTION HAVING A FIXED ANGULAR
Claim 2
Independent Claim
76 words
A METHOD FOR MEASURING THE DEVIATION ANGLE BETWEEN A LINE HAVING A FIXED ANGULAR RELATIONSHIP TO AN EXTERNAL REFERENCE LINE AND AN INTERNAL REFERENCE LINE OF AN INERTIAL SYSTEM HAVING INERTIAL MEANS FOR GENERATING ACCELERATION SIGNALS INDICATIVE OF ACCELERATION OF SAID SYSTEM IN A DIRECTION HAVING A FIXED ANGULAR RELATION TO SAID INTERNAL REFERENCE LINE, COMPRISING THE STEPS OF EFFECTING TRANSLATIONAL MOTION OF SAID SYSTEM BETWEEN TWO POINTS WHICH DEFINE A DIRECTION HAVING A FIXED ANGULAR
References Cited (Backward Citations)
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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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |