Patent US3240941A successfully refreshed from Google Patents.
US3240941A
Expired / Lapsed
US
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Photosensitive horizon tracker using a reed scanner convertible to star tracking
Assignee: Kollsman Instrument Corp
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Filing: 1961-12-11
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Granted: 1966-03-15
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Jacob S Zuckerbraun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:00
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/785; G01S3/786; G01S3/7868; G01S3/7867
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A HORIZON SCANNER COMPRISING OBJECTIVE MEANS FOR FOCUSING THE IMAGE OF A HORIZON IN A FOCAL PLANE; MEANS FOR SCANNING THE IMAGE OF SAID HORIZON INCLUDING AN OSCILLATING PLATE AND MEANS FOR MOVING SAID PLATE WITH SIMPLE HARMONIC MOTION POSITIONED IN SAID FOCAL PLANE AND HAVING AN APERTURE THEREIN, AND PHOTOSENSING MEANS POSITIONED BEHIND SAID APERTURE AND RECEIVING THE LIGHT OF SAID IMAGE AFTER MODULATION BY SAID SCANNING MEANS; SAID PHOTOSENSING MEANS BEING CONNECTED TO AN OUTPUT CIRCUIT; SAID OUTPUT CIRCUILT INCLUDING CIRCUIT ELEMENT MEANS FOR ASCERTAINING THE POSITION OF THE EDGE OF SAID HORIZON WITH RESPECT TO THE CENTER OF OSCILLATION OF SAID SCANNING MEANS SAID CIRCUIT ELEMENT MEANS BEING RESPONSIVE TO A FIRST HARMONIC COMPONENT OF THE OUTPUT OF SAID OUTPUT CIRCUIT AND
Claim 2
Dependent Claim
125 words
A HORIZON SCANNER COMPRISING OBJECTIVE MEANS FOR FOCUSING THE IMAGE OF A HORIZON IN A FOCAL PLANE; MEANS FOR SCANNING THE IMAGE OF SAID HORIZON INCLUDING AN OSCILLATING PLATE AND MEANS FOR MOVING SAID PLATE WITH SIMPLE HARMONIC MOTION POSITIONED IN SAID FOCAL PLANE AND HAVING AN APERTURE THEREIN, AND PHOTOSENSING MEANS POSITIONED BEHIND SAID APERTURE AND RECEIVING THE LIGHT OF SAID IMAGE AFTER MODULATION BY SAID SCANNING MEANS; SAID PHOTOSENSING MEANS BEING CONNECTED TO AN OUTPUT CIRCUIT; SAID OUTPUT CIRCUILT INCLUDING CIRCUIT ELEMENT MEANS FOR ASCERTAINING THE POSITION OF THE EDGE OF SAID HORIZON WITH RESPECT TO THE CENTER OF OSCILLATION OF SAID SCANNING MEANS SAID CIRCUIT ELEMENT MEANS BEING RESPONSIVE TO A FIRST HARMONIC COMPONENT OF THE OUTPUT OF SAID OUTPUT CIRCUIT AND
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |