US3303695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambient pressure compensation of load cells
Assignee: BLH Electronics Inc
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Filing: 1965-01-13
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Granted: 1967-02-14
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Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Laimins Eric
- 👤 Donald A Senour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:41
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
HERMETICALLY-SEALED LOAD CELL APPARATUS COMPENSATED FOR EFFECTS OF FLUID PRESSURE VARIATIONS, COMPRISING A LOAD-RESPONSIVE ELEMENT HAVING ONE LOAD-TRANSMITTING END FIXED IN RELATION TO A HOUSING AND ANOTHER LOAD-TRANSMITTING END MOVABLE IN RELATION TO SAID ONE END AND SEALED IN RELATION TO SAID HOUSING BY WAY OF A FLEXIBLE SEALING MEMBER, A PRESSURE-RESPONSIVE UNIT SEALED IN RELATION TO SAID HOUSING AND INCLUDING MEANS DEFORMABLE IN RESPONSE TO DIFFERENCES BETWEEN FLUID PRESSURES WITHIN SAID SEALED HOUSING AND AMBIENT FLUID PRESSURES EXTERNAL TO SAID HOUSING, MAIN STRAIN GAGE MEANS RESPONSIVE TO SURFACE STRAINS EXHIBITED BY SAID LOAD-RESPONSIVE ELEMENT, AUXILIARY STRAIN GAGE MEANS RESPONSIVE TO SURFACE STRAINS EXHIBITED BY SAID DEFORMABLE MEANS, SAID AUXILIARY STRAIN GAGE MEANS EXHIBITING PREDETERMINED VARIATIONS IN ELECTRICAL CHARACTERISTICS WITH CHANGES IN SAID DIFFERENCES IN FLUID PRESSURES, AND SAID MAIN GAGE MEANS EXHIBITING PREDETERMINED VARIATIONS
Claim 2
Dependent Claim
135 words
HERMETICALLY-SEALED LOAD CELL APPARATUS COMPENSATED FOR EFFECTS OF FLUID PRESSURE VARIATIONS, COMPRISING A LOAD-RESPONSIVE ELEMENT HAVING ONE LOAD-TRANSMITTING END FIXED IN RELATION TO A HOUSING AND ANOTHER LOAD-TRANSMITTING END MOVABLE IN RELATION TO SAID ONE END AND SEALED IN RELATION TO SAID HOUSING BY WAY OF A FLEXIBLE SEALING MEMBER, A PRESSURE-RESPONSIVE UNIT SEALED IN RELATION TO SAID HOUSING AND INCLUDING MEANS DEFORMABLE IN RESPONSE TO DIFFERENCES BETWEEN FLUID PRESSURES WITHIN SAID SEALED HOUSING AND AMBIENT FLUID PRESSURES EXTERNAL TO SAID HOUSING, MAIN STRAIN GAGE MEANS RESPONSIVE TO SURFACE STRAINS EXHIBITED BY SAID LOAD-RESPONSIVE ELEMENT, AUXILIARY STRAIN GAGE MEANS RESPONSIVE TO SURFACE STRAINS EXHIBITED BY SAID DEFORMABLE MEANS, SAID AUXILIARY STRAIN GAGE MEANS EXHIBITING PREDETERMINED VARIATIONS IN ELECTRICAL CHARACTERISTICS WITH CHANGES IN SAID DIFFERENCES IN FLUID PRESSURES, AND SAID MAIN GAGE MEANS EXHIBITING PREDETERMINED VARIATIONS
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |