Patent US3346966A successfully refreshed from Google Patents.
US3346966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyro compass misalignment measuring apparatus and method
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1962-03-28
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Granted: 1967-10-17
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:57
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN COMBINATION, A SINGLE INERTIAL GYRO HAVING A SPIN REFERENCE AXIS AND AN INPUT AXIS AT RIGHT ANGLES TO EACH OTHER, SAID SPIN REFERENCE AXIS AND A LOCAL GRAVITY VECTOR DEFINING A FIRST PLANE, MEANS FOR SUPPORTING SAID SPIN REFERENCE AXIS IN SAID FIRST PLANE AT THE LOCAL LATITUDE ANGLE WITH RESPECT TO A LOCAL HORIZONTAL PLANE PERPENDICULAR TO SAID LOCAL GRAVITY VECTOR AND WITH SAID FIRST PLANE IN ALIGNMENT WITH THE LOCAL MERIDIAN PLANE, MEANS FOR LOCATING SAID INPUT AXIS IN A FIRST POSITION IN SAID LOCAL HORIZONTAL PLANE, MEANS FOR LOCATING SAID INPUT AXIS IN A SECOND POSITION IN SAID LOCAL HORIZONTAL PLANE, MEANS FOR MEASURING THE TOTAL GYRO DRIFT RATE OF SAID GYRO WITH SAID INPUT AXIS IN SAID FIRST POSITION AND IN SAID SECOND POSITION, AND MEANS RESPONSIVE TO SAID GYRO DRIFT RATE IN SAID FIRST POSITION AND SAID SECOND POSITION FOR DETERMINING THE MISALIGNMENT OF SAID FIRST PLANE WITH RESPECT TO SAID LOCAL MERIDIAN PLANE.
Claim 2
Dependent Claim
160 words
IN COMBINATION, A SINGLE INERTIAL GYRO HAVING A SPIN REFERENCE AXIS AND AN INPUT AXIS AT RIGHT ANGLES TO EACH OTHER, SAID SPIN REFERENCE AXIS AND A LOCAL GRAVITY VECTOR DEFINING A FIRST PLANE, MEANS FOR SUPPORTING SAID SPIN REFERENCE AXIS IN SAID FIRST PLANE AT THE LOCAL LATITUDE ANGLE WITH RESPECT TO A LOCAL HORIZONTAL PLANE PERPENDICULAR TO SAID LOCAL GRAVITY VECTOR AND WITH SAID FIRST PLANE IN ALIGNMENT WITH THE LOCAL MERIDIAN PLANE, MEANS FOR LOCATING SAID INPUT AXIS IN A FIRST POSITION IN SAID LOCAL HORIZONTAL PLANE, MEANS FOR LOCATING SAID INPUT AXIS IN A SECOND POSITION IN SAID LOCAL HORIZONTAL PLANE, MEANS FOR MEASURING THE TOTAL GYRO DRIFT RATE OF SAID GYRO WITH SAID INPUT AXIS IN SAID FIRST POSITION AND IN SAID SECOND POSITION, AND MEANS RESPONSIVE TO SAID GYRO DRIFT RATE IN SAID FIRST POSITION AND SAID SECOND POSITION FOR DETERMINING THE MISALIGNMENT OF SAID FIRST PLANE WITH RESPECT TO SAID LOCAL MERIDIAN PLANE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |