Patent US3324435A successfully refreshed from Google Patents.
US3324435A
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Voltage breakdown control in strain gages
Assignee: Statham Instruments Inc
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Filing: 1966-10-20
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Granted: 1967-06-06
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Expires: 1986-10-20
Abstract
No abstract record available.
Inventors
- 👤 Andrew Van Leeuwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:09
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0051; G01L9/006; G01L9/0061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PRESSURE TRANSDUCER COMPRISING A CASE, A FORCE TRANSMITTING FLEXURE, A SEALED REFERENCE VOLUME, AN ELECTRICAL RESISTANCE STRAIN WIRE MOUNTED IN SAID REFERENCE VOLUME AND OPERATIVELY CONNECTED TO SAID FLEXURE, HELIUM IN SAID REFERENCE VOLUME, A FLUOROCARBOM GAS IN SAID REFERENCE VOLUME AT A PARTIAL PRESSURE SUBSTANIALLY LESS THAN THE PRESSURE OF SAID HELIUM, THE TOTAL PRESSURE IN SAID REFERENCE VOLUME BEING SUBSTANTIALLY EQUAL TO THE PRESSURE OF SAID HELIUM AND SAID FLUOROCARBON.
Claim 2
Dependent Claim
73 words
A PRESSURE TRANSDUCER COMPRISING A CASE, A FORCE TRANSMITTING FLEXURE, A SEALED REFERENCE VOLUME, AN ELECTRICAL RESISTANCE STRAIN WIRE MOUNTED IN SAID REFERENCE VOLUME AND OPERATIVELY CONNECTED TO SAID FLEXURE, HELIUM IN SAID REFERENCE VOLUME, A FLUOROCARBOM GAS IN SAID REFERENCE VOLUME AT A PARTIAL PRESSURE SUBSTANIALLY LESS THAN THE PRESSURE OF SAID HELIUM, THE TOTAL PRESSURE IN SAID REFERENCE VOLUME BEING SUBSTANTIALLY EQUAL TO THE PRESSURE OF SAID HELIUM AND SAID FLUOROCARBON.
References Cited (Backward Citations)
US3058348A
Cited
US3242448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |