Patent US4220841A successfully refreshed from Google Patents.
Patent US3176520A successfully refreshed from Google Patents.
US3176520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angular accelerometer
Assignee: Honeywell Inc
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Filing: 1960-09-12
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Granted: 1965-04-06
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 Vernon H Aske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:47
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/0888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
AN ANGULAR, FORCE REBALANCE ACCELEROMETER WHICH COMPRISES MEANS DEFINING A CLOSED ANNULAR PASSAGE; MAGNETIC FLUX PRODUCING MEANS EFFECTIVE TO CAUSE MAGNETIC FLUX TO BRIDGE SAID PRESSURE; SAID MEANS DEFINING SAID PASSAGE INCLUDING PICKOFF CONTACT MEANS AND TORQUER CONTACT MEANS POSITIONED TRANSVERSELY TO THE DIRECTION OF SAID MAGNETIC FLUX; MEANS INCLUDING AMPLIFIER MEANS ELECTRICALLY CONNECTING SAID PICKOFF CONTACT MEANS AND SAID TORQUER CONTACT MEANS; AND CONDUCTIVE FLUID SEISMIC MASS MEANS POSITIONED WITHIN SAID PASSAGE, SAID SEISMIC MASS MEANS BEING DISPLACED RELATIVE TO SAID MEANS FORMING SAID PASSAGE IN RESPONSE TO ACCELERATIONS APPLIED ABOUT THE AXIS OF SAID ANNULAR PASSAGE, THE RELATIVE DISPLACEMENT OF SAID SEISMIC MASS MEANS BEING EFFECTIVE TO GENERATE A SIGNAL IN SAID PICKOFF CONTACT MEANS WHICH IS INDICATIVE OF THE APPLIED ACCELERATION, SAID TORQUE CONTACT MEANS BEING EFFECTIVE TO APPLY A VOLTAGE ACROSS SAID SEISMIC MASS MEANS THAT IS A FUNCTION OF SAID SIGNAL SO AS TO APPLY A REBALANCE FORCE THERETO, SAID REBALANCE FORCE RESULTING FROM THE INTERACTION BETWEEN SAID MAGNETIC FLUX IN SAID PASSAGE AND THE CURRENT FLOWING BETWEEN SAID TORQUE CONTACT MEANS AND THROUGH SAID SEISMIC MASS MEANS.
Claim 2
Dependent Claim
183 words
AN ANGULAR, FORCE REBALANCE ACCELEROMETER WHICH COMPRISES MEANS DEFINING A CLOSED ANNULAR PASSAGE; MAGNETIC FLUX PRODUCING MEANS EFFECTIVE TO CAUSE MAGNETIC FLUX TO BRIDGE SAID PRESSURE; SAID MEANS DEFINING SAID PASSAGE INCLUDING PICKOFF CONTACT MEANS AND TORQUER CONTACT MEANS POSITIONED TRANSVERSELY TO THE DIRECTION OF SAID MAGNETIC FLUX; MEANS INCLUDING AMPLIFIER MEANS ELECTRICALLY CONNECTING SAID PICKOFF CONTACT MEANS AND SAID TORQUER CONTACT MEANS; AND CONDUCTIVE FLUID SEISMIC MASS MEANS POSITIONED WITHIN SAID PASSAGE, SAID SEISMIC MASS MEANS BEING DISPLACED RELATIVE TO SAID MEANS FORMING SAID PASSAGE IN RESPONSE TO ACCELERATIONS APPLIED ABOUT THE AXIS OF SAID ANNULAR PASSAGE, THE RELATIVE DISPLACEMENT OF SAID SEISMIC MASS MEANS BEING EFFECTIVE TO GENERATE A SIGNAL IN SAID PICKOFF CONTACT MEANS WHICH IS INDICATIVE OF THE APPLIED ACCELERATION, SAID TORQUE CONTACT MEANS BEING EFFECTIVE TO APPLY A VOLTAGE ACROSS SAID SEISMIC MASS MEANS THAT IS A FUNCTION OF SAID SIGNAL SO AS TO APPLY A REBALANCE FORCE THERETO, SAID REBALANCE FORCE RESULTING FROM THE INTERACTION BETWEEN SAID MAGNETIC FLUX IN SAID PASSAGE AND THE CURRENT FLOWING BETWEEN SAID TORQUE CONTACT MEANS AND THROUGH SAID SEISMIC MASS MEANS.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |