Patent US3122647A successfully refreshed from Google Patents.
Patent US3335381A successfully refreshed from Google Patents.
US3335381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex flexure for force transducer
Assignee: STRATHAM INSTRUMENTS Inc
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Filing: 1965-07-06
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Granted: 1967-08-08
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Giovanni Mario Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2231; G01L9/00; G01L9/0041; G01L9/0051; G01L9/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A TRANSDUCER COMPRISING A FLEXURE, SAID FLEXURE COMPRISING A DIAPHRAGM, SAID DIAPHRAGM HAVING A CIRCULAR CENTRAL PORTION AND AN ANNULAR END PORTION, SAID CENTRAL PORTION POSITIONED CONCENTRICALLY WITH SAID ANNULAR END PORTION, THE MEDIAN PLANES OF SAID ANNULAR END PORTION AND SAID CENTRAL PORTION BEING AXIALLY DISPLACED, THE OUTER PERIPHERY OF SAID ANNULAR END PORTION BEING FIXEDLY CONNECTED TO A SUPPORT, FLEXIBLE BAND CONNECTING THE INNER PERIPHERY OF SAID ANNULAR END PORTION AND THE OUTER PERIPHERY OF SAID CENTRAL PORTION, SAID BAND COMPRISING TWO CIRCULAR FLEXIBLE BAND MEMBERS CONNECTED TO AND EXTENDING SUBSTANTIALLY 90* FROM THE SAID MEDIAN PLANES, SAID BANDS BEING CONNECTED TO EACH OTHER AT THEIR OTHER ENDS, STRAIN GAGES BONDED TO SAID ANNULAR END PORTION AND TO SAID CENTRAL PORTION, AND MEANS TO APPLY A FORCE TO SAID CENTRAL PORTION OF SAID FLEXURE.
Claim 2
Dependent Claim
136 words
A TRANSDUCER COMPRISING A FLEXURE, SAID FLEXURE COMPRISING A DIAPHRAGM, SAID DIAPHRAGM HAVING A CIRCULAR CENTRAL PORTION AND AN ANNULAR END PORTION, SAID CENTRAL PORTION POSITIONED CONCENTRICALLY WITH SAID ANNULAR END PORTION, THE MEDIAN PLANES OF SAID ANNULAR END PORTION AND SAID CENTRAL PORTION BEING AXIALLY DISPLACED, THE OUTER PERIPHERY OF SAID ANNULAR END PORTION BEING FIXEDLY CONNECTED TO A SUPPORT, FLEXIBLE BAND CONNECTING THE INNER PERIPHERY OF SAID ANNULAR END PORTION AND THE OUTER PERIPHERY OF SAID CENTRAL PORTION, SAID BAND COMPRISING TWO CIRCULAR FLEXIBLE BAND MEMBERS CONNECTED TO AND EXTENDING SUBSTANTIALLY 90* FROM THE SAID MEDIAN PLANES, SAID BANDS BEING CONNECTED TO EACH OTHER AT THEIR OTHER ENDS, STRAIN GAGES BONDED TO SAID ANNULAR END PORTION AND TO SAID CENTRAL PORTION, AND MEANS TO APPLY A FORCE TO SAID CENTRAL PORTION OF SAID FLEXURE.
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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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |