US3219959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain gage range extension
Assignee: Toledo Scale Corp
•
Filing: 1963-04-29
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Granted: 1965-11-23
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Frank E Golding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:49
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A MEASURING DEVICE, A LOAD CELL COMPRISING, IN COMBINATION, SPRING ELEMENT MEANS, AND A METALLIC STRAIN GAGE LINEARLY RESPONSIVE TO COMPRESSIVE AND TENSILE LIMITS FROM AN UNSTRESSED POSITION, SAID STRAIN GAGE ARRANGED SUBSTANTIALLY IN A SINGLE PLANE AND BONDED TO A SURFACE OF THE SPRING ELEMENT MEANS, THE STRAIN GAGE BEING PRESTRESSED TO A VALUE ON ONE SIDE OF SAID UNSTRESSED POSITION BELOW ONE OF THE RESPECTIVE LIMITS AND THE SPRING ELEMENT MEANS, IN OPERATION, STRAINING THE STRAIN GAGE FROM SAID PRESTRESSED VALUE THROUGH ZERO STRESS VALUE TO A STRESSED VALUE ON THE OTHER SIDE OF SAID UNSTRESSED POSITION BELOW THE OTHER ONE OF THE RESPECTIVE LIMITS, WHEREBY THE RANGE OF THE STRAIN GAGE IS EXTENDED.
Claim 2
Dependent Claim
117 words
IN A MEASURING DEVICE, A LOAD CELL COMPRISING, IN COMBINATION, SPRING ELEMENT MEANS, AND A METALLIC STRAIN GAGE LINEARLY RESPONSIVE TO COMPRESSIVE AND TENSILE LIMITS FROM AN UNSTRESSED POSITION, SAID STRAIN GAGE ARRANGED SUBSTANTIALLY IN A SINGLE PLANE AND BONDED TO A SURFACE OF THE SPRING ELEMENT MEANS, THE STRAIN GAGE BEING PRESTRESSED TO A VALUE ON ONE SIDE OF SAID UNSTRESSED POSITION BELOW ONE OF THE RESPECTIVE LIMITS AND THE SPRING ELEMENT MEANS, IN OPERATION, STRAINING THE STRAIN GAGE FROM SAID PRESTRESSED VALUE THROUGH ZERO STRESS VALUE TO A STRESSED VALUE ON THE OTHER SIDE OF SAID UNSTRESSED POSITION BELOW THE OTHER ONE OF THE RESPECTIVE LIMITS, WHEREBY THE RANGE OF THE STRAIN GAGE IS EXTENDED.
References Cited (Backward Citations)
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |