Patent JPS5313473A successfully refreshed from Google Patents.
US3193744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical synchro system
Assignee: Individual
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Filing: 1962-10-10
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Granted: 1965-07-06
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Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 Harold H Seward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
APPARATUS FOR PROVIDING AN ELECTRICAL SIGNAL CHARACTERISTIC OF AN ANGULAR PARAMETER OF A ROTATABLE SHAFT COMPRISING, A FIRST CIRCULAR DISC MOUNTED FOR ROTATION WITH SAID SHAFT, SAID FIRST CIRCULAR DISC BEING AXIALLY SYMMETRIC ABOUT THE AXIS OF SAID SHAFT, A SECOND CIRCULAR DISC, SAID SYMMETRIC ABOUT SAID AXIS ADJACENT TO SAID FIRST DISC, SAID FIRST AND SECOND DISCS HAVING A DIFFERENT NUMBER OF ALTERNATELY OPAQUE AND TRANSLUCENT SECTORS, FIRST PHOTOELECTRIC TRANSDUCER, A FIRST LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID FIRST PHOTOELECTRIC TRANSDUCER, A SECOND PHOTOELECTRIC TRANSDUCER, A SECOND LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID SECOND PHOTOELECTRIC TRANSDUCER, A THIRD PHOTOELECTRIC TRANSDUCER, THIRD LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID THIRD PHOTOELECTRIC TRANSDUCER, A FOURTH PHOTOELECTRIC TRANSDUCER, AND S FOURTH SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID FOURTH PHOTOELECTRIC TRANSDUCER, THE FOUR
Claim 2
Dependent Claim
144 words
APPARATUS FOR PROVIDING AN ELECTRICAL SIGNAL CHARACTERISTIC OF AN ANGULAR PARAMETER OF A ROTATABLE SHAFT COMPRISING, A FIRST CIRCULAR DISC MOUNTED FOR ROTATION WITH SAID SHAFT, SAID FIRST CIRCULAR DISC BEING AXIALLY SYMMETRIC ABOUT THE AXIS OF SAID SHAFT, A SECOND CIRCULAR DISC, SAID SYMMETRIC ABOUT SAID AXIS ADJACENT TO SAID FIRST DISC, SAID FIRST AND SECOND DISCS HAVING A DIFFERENT NUMBER OF ALTERNATELY OPAQUE AND TRANSLUCENT SECTORS, FIRST PHOTOELECTRIC TRANSDUCER, A FIRST LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID FIRST PHOTOELECTRIC TRANSDUCER, A SECOND PHOTOELECTRIC TRANSDUCER, A SECOND LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID SECOND PHOTOELECTRIC TRANSDUCER, A THIRD PHOTOELECTRIC TRANSDUCER, THIRD LIGHT SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID THIRD PHOTOELECTRIC TRANSDUCER, A FOURTH PHOTOELECTRIC TRANSDUCER, AND S FOURTH SOURCE DIRECTING LIGHT THROUGH BOTH SAID DISCS TO SAID FOURTH PHOTOELECTRIC TRANSDUCER, THE FOUR
References Cited (Backward Citations)
US3096444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |