Patent US3280641A successfully refreshed from Google Patents.
US3280641A
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Pendulous accelerometer
Assignee: Harvest Queen Mill and Elevator Co
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Filing: 1963-07-29
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Granted: 1966-10-25
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Ensley Donald Luther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:53
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN AN ACCELEROMETER, THE COMBINATION WHICH COMPRISES: (A) A HOUSING FILLED WITH A FLOTATION FLUID, (B) A CYLINDRICAL INERTIAL REFERENCE ELEMENT NEUTRALLY BUOYANT IN SAID FLUID AND HAVING ITS CENTER OF MASS DISPLACED LONGITUDINALLY FROM ITS CENTER OF BUOYANCY, (C) ULTRASONIC PRESSURE FIELD MEANS AT A CENTRAL HORIZONTAL AXIS FOR RESILIENTLY POSITIONING SAID ELEMENT AS TO PERMIT ROTATIONAL DISPLACEMENTS ABOUT SAID CENTER OF BUOYANCY, AND
Claim 2
Dependent Claim
65 words
IN AN ACCELEROMETER, THE COMBINATION WHICH COMPRISES: (A) A HOUSING FILLED WITH A FLOTATION FLUID, (B) A CYLINDRICAL INERTIAL REFERENCE ELEMENT NEUTRALLY BUOYANT IN SAID FLUID AND HAVING ITS CENTER OF MASS DISPLACED LONGITUDINALLY FROM ITS CENTER OF BUOYANCY, (C) ULTRASONIC PRESSURE FIELD MEANS AT A CENTRAL HORIZONTAL AXIS FOR RESILIENTLY POSITIONING SAID ELEMENT AS TO PERMIT ROTATIONAL DISPLACEMENTS ABOUT SAID CENTER OF BUOYANCY, AND
References Cited (Backward Citations)
US3001407A
Cited
US3078721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |