Patent US2505443A successfully refreshed from Google Patents.
Patent US3152485A successfully refreshed from Google Patents.
US3152485A
Expired / Lapsed
US
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Magnetic accelerometer
Assignee: Northrop Grumman Corp
•
Filing: 1961-06-09
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Granted: 1964-10-13
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Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 Dain B Lones
- 👤 Timothy L Haniey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:37
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
IN AN ACCELEROMETER, A PROOF MASS ASSEMBLY COMPRISING AN ELONGATED AXIAL PRISM LONGITUDINALLY MOVABLE IN A STRAIGHT LINE DIRECTION ALONG THE SENSING AXIS OF SAID ACCELEROMETER, SIGNAL MEANS AFFIXED INTERMEDIATE OF THE ENDS OF SAID PRISM, BODY MEANS SURROUNDING SAID PROOF MASS ASSEMBLY, SIGNAL PICK-OFF MEANS MOUNTED IN SAID BODY AND COOPERATIVELY ASSOCIATED WITH SAID SIGNAL MEANS ON SAID PRISM, A PLURALITY OF RADIALLY ADJUSTABLE PRISM GUIDE MEANS AT EACH END OF SAID BODY MEANS, SAID GUIDE MEANS INCLUDING A PLURALITY OF SMOOTH BEARING ELEMENTS SLIDABLY BEARING AGAINST RESPECTIVE SIDES OF SAID PRISM, PERMANENT MAGNET MEANS FIXED IN SURROUNDING RELATION TO SAID BODY, MEANS DEFINING A CONTINUOUS MAGNETIC GAP IN SAID MAGNET MEANS, SAID GAP FORMING AN ANNULAR RING SPACE IN A PLANE PERPENDICULAR TO SAID SENSING AXIS AND
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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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |