Patent US3438249A successfully refreshed from Google Patents.
US3438249A
Expired / Lapsed
US
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Force transducer structures and fabricating methods
Assignee: Individual
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Filing: 1965-04-12
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Granted: 1969-04-15
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Akio Fukunaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:03
CPC Classifications
A; A01; A01K; A01K73/00; A01K73/02; A01K73/10; G; G01; G01L; G01L1/00; G01L1/18; G01L1/20; G01L1/22; G01L1/2206; G01L1/2231; G01L1/2237; G01L5/00; G01L5/04; G01L5/10; G01L5/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A FORCE TRANSDUCER DEVICE FOR MEASURING FORCE COMPRISING A LOAD DISTRIBUTING MEMBER CONFIGURED TO PROVIDE AN APERTURE AND HAVING THE FORCE APPLIED AT THE OUTER PERIPHERY THEREOF, A PIEZORESISTIVE ELEMENT HAVING A CENTRAL APERTUR AND CONFIGURED TO PROVIDE FOUR DISTINCT SEGMENTS INTERSPERSED WITH FOUR DISTINCT RESISTIVE SECTIONS SUBSTANTIALLY SYMMETRICALLY LOCATED ABOUT THE CENTRAL APERTURE OF THE ELEMENT, MEANS FOR MOUNTING SAID ELEMENT WITHIN THE APERTURE OF THE LOAD DISTRIBUTING MEMBER, AND MEANS FOR CONNECTING SAID DISTINCT SEGMENTS IN AN ELECTRICAL CIRCUIT.
Claim 2
Dependent Claim
81 words
A FORCE TRANSDUCER DEVICE FOR MEASURING FORCE COMPRISING A LOAD DISTRIBUTING MEMBER CONFIGURED TO PROVIDE AN APERTURE AND HAVING THE FORCE APPLIED AT THE OUTER PERIPHERY THEREOF, A PIEZORESISTIVE ELEMENT HAVING A CENTRAL APERTUR AND CONFIGURED TO PROVIDE FOUR DISTINCT SEGMENTS INTERSPERSED WITH FOUR DISTINCT RESISTIVE SECTIONS SUBSTANTIALLY SYMMETRICALLY LOCATED ABOUT THE CENTRAL APERTURE OF THE ELEMENT, MEANS FOR MOUNTING SAID ELEMENT WITHIN THE APERTURE OF THE LOAD DISTRIBUTING MEMBER, AND MEANS FOR CONNECTING SAID DISTINCT SEGMENTS IN AN ELECTRICAL CIRCUIT.
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |