Patent US3151306A successfully refreshed from Google Patents.
US3151306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical strain transducer
Assignee: Baldwin Lima Hamilton Corp
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Filing: 1961-08-25
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Granted: 1964-09-29
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Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Frank F Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:31
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FORCE-SENSING ELEMENT HAVING AN AXIS EXTENDING IN WHICH A FORCE IS TO BE APPLIED TO THE ELEMENT, SAID ELEMENT HAVING AN EXTERNAL SURFACE A PORTION OF WHICH IS FORMED AS A PLANE PARALLEL TO SAID AXIS AND SAID ELEMENT HAVING A NEUTRAL SURFACE LYING IN A PLANE WHICH IS PARALLEL TO AND AT A PREDETERMINED DISTANCE EXTERNALLY FROM SAID SURFACE PORTION, A STRAIN GAGE ENGAGING SAID SURFACE PORTION SO AS TO BE RESPONSIVE TO STRAINS THEREIN IN THE DIRECTION OF SAID AXIS, AND THE GAGE HAVING A THICKNESS SO THAT WITH THE GAGE ATTACHED TO SAID EXTERNAL SURFACE OF SAID ELEMENT, THE GAGE IS DISPOSED SO THAT IT HAS A FORCE, RESPONSIVE PLANE THAT COINCIDES WITH SAID PLANE OF THE NEUTRAL SURFACE WHEREBY THE GAGE IS FREE OF STRAINS DUE TO BENDIND OF SAID NEUTRAL SURFACE ALONG THE DIRECTION OF SAID AXIS AND IS RESPONSIVE ONLY TO THE MAGNITUDE OF SAID APPLIED FORCE.
Claim 2
Dependent Claim
154 words
A FORCE-SENSING ELEMENT HAVING AN AXIS EXTENDING IN WHICH A FORCE IS TO BE APPLIED TO THE ELEMENT, SAID ELEMENT HAVING AN EXTERNAL SURFACE A PORTION OF WHICH IS FORMED AS A PLANE PARALLEL TO SAID AXIS AND SAID ELEMENT HAVING A NEUTRAL SURFACE LYING IN A PLANE WHICH IS PARALLEL TO AND AT A PREDETERMINED DISTANCE EXTERNALLY FROM SAID SURFACE PORTION, A STRAIN GAGE ENGAGING SAID SURFACE PORTION SO AS TO BE RESPONSIVE TO STRAINS THEREIN IN THE DIRECTION OF SAID AXIS, AND THE GAGE HAVING A THICKNESS SO THAT WITH THE GAGE ATTACHED TO SAID EXTERNAL SURFACE OF SAID ELEMENT, THE GAGE IS DISPOSED SO THAT IT HAS A FORCE, RESPONSIVE PLANE THAT COINCIDES WITH SAID PLANE OF THE NEUTRAL SURFACE WHEREBY THE GAGE IS FREE OF STRAINS DUE TO BENDIND OF SAID NEUTRAL SURFACE ALONG THE DIRECTION OF SAID AXIS AND IS RESPONSIVE ONLY TO THE MAGNITUDE OF SAID APPLIED FORCE.
References Cited (Backward Citations)
US2813958A
Cited
US2984102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |