US3464255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerometer and method for its calibration
Assignee: Ambac Industries Inc
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Filing: 1963-10-03
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Granted: 1969-09-02
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 Gareth M Davidson
- 👤 Charles T Davenport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:33
CPC Classifications
G; G01; G01P; G01P21/00; G01P15/00; G01P15/02; G01P15/08; G01P15/097; G01P15/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
ACCELEROMETER APPARATUS COMPRISING: A SUPORTING FRAME; A VIBRATING-STRING ELEMENT AND A PROOF-MASS ELEMENT MOUNTED FROM SAID FRAME SO THAT THE NATURAL FREQUENCY OF VIBRATION OF SAID VIBRATING-STRING ELEMENT VARIES WITH ACCELERATION OF SAID FRAME TO AND EXTENT DEPENDENT UPON THE MAGNITUDE OF THE MASS OF SAID PROOF-MASS ELEMENT; SAID PROOF-MASS ELEMENT COMPRISING A FIRST PART, A SECOND PART HAVING A MASS LARGE COMPARED WITH THAT OF SAID FIRST PART, AND MEANS FOR MOUNTING SAID SECOND PART ON SAID FIRST PART; AND MEANS FOR ATTACHING SAID SECOND PART TO SAID FRAME WHEN SEPARATED FROM SAID FIRST PART, IN A POSITION PERMITTING MOTION OF SAID FIRST PART INDEPENDENTLY OF SAID SECOND PART.
Claim 2
Dependent Claim
110 words
ACCELEROMETER APPARATUS COMPRISING: A SUPORTING FRAME; A VIBRATING-STRING ELEMENT AND A PROOF-MASS ELEMENT MOUNTED FROM SAID FRAME SO THAT THE NATURAL FREQUENCY OF VIBRATION OF SAID VIBRATING-STRING ELEMENT VARIES WITH ACCELERATION OF SAID FRAME TO AND EXTENT DEPENDENT UPON THE MAGNITUDE OF THE MASS OF SAID PROOF-MASS ELEMENT; SAID PROOF-MASS ELEMENT COMPRISING A FIRST PART, A SECOND PART HAVING A MASS LARGE COMPARED WITH THAT OF SAID FIRST PART, AND MEANS FOR MOUNTING SAID SECOND PART ON SAID FIRST PART; AND MEANS FOR ATTACHING SAID SECOND PART TO SAID FRAME WHEN SEPARATED FROM SAID FIRST PART, IN A POSITION PERMITTING MOTION OF SAID FIRST PART INDEPENDENTLY OF SAID SECOND PART.
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) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |