Patent US3084557A successfully refreshed from Google Patents.
US3084557A
Expired / Lapsed
US
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Accelerometer
Assignee: Individual
•
Filing: 1957-07-19
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Granted: 1963-04-09
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Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Ahlefeldt Rolf S Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:42
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
AN ACCELEROMETER COMPRISING AN ENCLOSURE HAVING A GAS THEREIN, A PAIR OF SENSING ELEMENTS, EACH ELEMENT INCLUDING A PAIR OF ELECTRODES AT OPPOSED ENDS OF SAID ENCLOSURE WITH THE GAS IN SAID ENCLOSURE BEING FREE TO PASS BETWEEN SAID OPPOSED ENDS WHEREBY THE PRESSURE IN SAID ENCLOSURE IS NORMALLY UNIFORM DURING PERIODS WHEN THE ENCLOSURE IS NOT SUBJECT TO ACCELERATING FORCES, MEANS TO MEASURE THE CORRESPONDING CONCENTRATION OF PARTICLES OF THE GAS AT EACH END OF SAID ENCLOSURE IN ACCORDANCE WITH THE FLOW OF ELECTRONS BETWEEN THE ELECTRODES OF EACH PAIR OF ELECTRODES AT EACH END AND MEANS TO MEASURE THE DIFFERENCE BETWEEN SAID FLOW OF ELECTRONS WHEREBY THE ACCELERATING FORCES IN A LINE OF MOVEMENT BETWEEN SAID ENDS CAN BE MEASURED.
References Cited (Backward Citations)
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Cited
US1697339A
Cited
US2155420A
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US2334356A
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US2455394A
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US2611268A
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US2728868A
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |