Patent US3554025A successfully refreshed from Google Patents.
US3554025A
Expired / Lapsed
US
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Force measuring device
Assignee: Saab Bofors AB
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Filing: 1968-01-31
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Granted: 1971-01-12
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Expires: 1988-01-31
Abstract
Abstract A FORCE MEASURING DEVICE INCLUDING A BEAM SUBJECTED TO BENDING BY THE FORCE TO BE MEASURED AND ONE OR PREFERABLY SEVERAL ELECTRICAL IMPEDANCE STRAIN GAGES MOUNTED ON SURFACES OF THE BEAM PARALLEL TO THE BENDING PLANE OF THE BEAM SO AS TO BE RESPONSIVE TO THE DEFORMATIONS IN THE BEAM CAUSED BY THE SHEAR STRAINS THEREIN. AT LEAST ONE END OF SAID BEAM PROVIDED WITH THE STRAIN GAGES IS UNRESTRAINEDLY DEFLECTABLE AND RIGIDLY CONNECTED TO A SECOND BEAM MEMBER, WHICH EXTENDS PARALLEL TO AND SPACED FROM SAID FIRST BEAM AND IS SHORTER THAN THIS. THE FREE PORTION OF SAID SECOND BEAM MEMBER IS ADAPTED TO SERVE AS POINT OF APPLICATION FOR THE FORCE TO BE MEASURED.
Inventors
- 👤 John-Erik Andersson
- 👤 Rolf Paul Haggstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:01
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/0009; G01L5/0019; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2218; G01L1/2225; H; H01; H01J; H01J29/00; H01J29/46; H01J29/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |