Patent US3231884A successfully refreshed from Google Patents.
US3231884A
Expired / Lapsed
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Digital transducer
Assignee: Consolidated Electrodynamics Corp
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Filing: 1961-07-13
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Granted: 1966-01-25
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Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Sterling F Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:31
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A DIGITAL TRANSDUCER INCLUDING ANALOG-TO-DIGITAL DATA CONVERSION MEANS COMPRISING A SHAFT HAVING ROTATION AS THE ANALOG FUNCTION TO BE DIGITALIZED, A MIRROR MOUNTED ON AND PARALLEL TO THE SHAFT, A CYLINDRICAL RREFLECTIVE SURFACE CONCENTRIC TO THE SHAFT IN A PLANE PERPENDICULAR TO THE SHAFT, A LIGHT SOURCE DIRECTED TOWARD THE SHAFT MIRROR; MEANS IN THE PLANE FOR COLLIMATING THE LIGHT BEFORE INCIDENCE ON THE SHAFT MIRROR, PHOTOELECTRIC OUTPUT MEANS FROM THE TRANSDUCER, AND MEANS IN THE PLANE BETWEEN THE MIRROR AND THE LIGHT SOURCE FOR DIRECTING LIGHT TO THE PHOTOELECTRIC OUTPUT MEANS, WHEREIN THE CONCENTRIC REFLECTIVE SURFACE HAS NONREFLECTIVE PORTIONS ARRANGED TO PROVIDE
Claim 2
Dependent Claim
103 words
A DIGITAL TRANSDUCER INCLUDING ANALOG-TO-DIGITAL DATA CONVERSION MEANS COMPRISING A SHAFT HAVING ROTATION AS THE ANALOG FUNCTION TO BE DIGITALIZED, A MIRROR MOUNTED ON AND PARALLEL TO THE SHAFT, A CYLINDRICAL RREFLECTIVE SURFACE CONCENTRIC TO THE SHAFT IN A PLANE PERPENDICULAR TO THE SHAFT, A LIGHT SOURCE DIRECTED TOWARD THE SHAFT MIRROR; MEANS IN THE PLANE FOR COLLIMATING THE LIGHT BEFORE INCIDENCE ON THE SHAFT MIRROR, PHOTOELECTRIC OUTPUT MEANS FROM THE TRANSDUCER, AND MEANS IN THE PLANE BETWEEN THE MIRROR AND THE LIGHT SOURCE FOR DIRECTING LIGHT TO THE PHOTOELECTRIC OUTPUT MEANS, WHEREIN THE CONCENTRIC REFLECTIVE SURFACE HAS NONREFLECTIVE PORTIONS ARRANGED TO PROVIDE
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |