US3555894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain gauge transducer apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1966-04-25
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Granted: 1971-01-19
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Expires: 1986-04-25
Abstract
Abstract THERE IS DISCLOSED STRAIN OR VIBRATION DETERMINING APPARATUS IN WHICH THE TRANSDUCER RESPONSIVE TO STRAIN (27, FIGS. 1, 1A, 2, 2A) OR TO VIBRATION (131, FIGS. 6 AND 7) IS STRUCTURALLY INTEGRATED WITH A MONOLITHIC AMPLIFER (29, FIGS. 1, 1A, 2, 2A, 149, FIG. 7). PRECISION OF MEASUREMENT IS THUS MATERIALLY IMPROVED BECAUSE THE CONDUCTORS BETWEEN THE GAUGE AND THE AMPLIFIER ARE SHORT.
Inventors
- 👤 Walter V Bratkowski
- 👤 Paul F Pittman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:44
CPC Classifications
G; G01; G01H; G01H11/00; G01H11/06; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/225; G01L3/00; G01L3/02; G01L3/04; G01L3/10; G01L3/108; G01L9/00; G01L9/0041; G01L9/0051; G01L9/02; G01L9/04; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/12; G01P15/123
Claims Analysis
Total Claims: 0
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |