US3390274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating light conductor for instrument reading
Assignee: WHITE AVIONICS CORP
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Filing: 1964-12-07
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Granted: 1968-06-25
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 James P Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:25
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/28; G01D5/30; G01D5/12; G01D5/244; G01D5/247; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/103; G02B6/00; G02B6/24; G02B6/26; G02B6/35; G02B6/351; G02B6/3512; G02B6/3564; G02B6/3568; G02B6/3574
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN OPTICAL SCANNING TRANSDUCER FOR USE WITH AN INSTRUMENT HAVING A ROTATABLE POINTER CARRYING A MIRROR, SAID TRANSDUCER COMPRISING A ROTOR COAXIAL WITH THE POINTER, A LAMP, A LIGHT SENSOR ACTING AS A POSITION SENSOR, A LIGHT SENSOR ACTING AS A REFERENCE SENSOR, SAID ROTOR HAVING MEANS TO DIRECT LIGHT FROM THE LAMP TO THE MIRROR AND MEANS TO GUIDE REFLECTED LIGHT BACK FROM THE MIRROR TO THE POSITION SENSOR, MOTIVE MEANS TO REVOLVE THE ROTOR, SAID REFERENCE SENSOR BEING POSITIONED ADJACENT THE PATH OF REVOLUTION OF SAID LIGHT-DIRECTING MEANS WHEREBY THE ANGLE OF ROTATION BETWEEN ILLUMINATION OF THE REFERENCE SENSOR AND ILLUMINATION OF THE POSITION SENSOR CORRESPONDS TO THE READING OF THE INSTRUMENT.
Claim 2
Dependent Claim
114 words
AN OPTICAL SCANNING TRANSDUCER FOR USE WITH AN INSTRUMENT HAVING A ROTATABLE POINTER CARRYING A MIRROR, SAID TRANSDUCER COMPRISING A ROTOR COAXIAL WITH THE POINTER, A LAMP, A LIGHT SENSOR ACTING AS A POSITION SENSOR, A LIGHT SENSOR ACTING AS A REFERENCE SENSOR, SAID ROTOR HAVING MEANS TO DIRECT LIGHT FROM THE LAMP TO THE MIRROR AND MEANS TO GUIDE REFLECTED LIGHT BACK FROM THE MIRROR TO THE POSITION SENSOR, MOTIVE MEANS TO REVOLVE THE ROTOR, SAID REFERENCE SENSOR BEING POSITIONED ADJACENT THE PATH OF REVOLUTION OF SAID LIGHT-DIRECTING MEANS WHEREBY THE ANGLE OF ROTATION BETWEEN ILLUMINATION OF THE REFERENCE SENSOR AND ILLUMINATION OF THE POSITION SENSOR CORRESPONDS TO THE READING OF THE INSTRUMENT.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |