US3424907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Satellite attitude detection system including cosine and spinsate detectors
Assignee: United States Department of the Navy
•
Filing: 1963-03-04
•
Granted: 1969-01-28
•
Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Fischell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:38
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/34; B64G1/36; G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; B64G1/28; B64G1/281; Y; Y10; Y10S; Y10S136/00; Y10S136/291; Y10S136/292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN COMBINATION WITH AN ORBITING SATELLITE HAVING AN INTEGRAL COLLAR PORTION AND A TELEMETRY TRANSMITTER THEREABOARD, AN ATTITUDE DETECTION SYSTEM RESPONSIVE TO SOLAR RADIATION, COMPRISING, A MAST PROTRUDING FROM SAID SATELLITE AND ATTACHED THERETO, A PLURALITY OF SOLAR CELLS DISPOSED ABOUT SAID MAST FOR MEASURING DIRECT SOLAR RADIATION, AN ASSEMBLY MOUNTED ON SAID MAST AND FORMED WITH A PLURALITY OF SLOTS, A PHOTODIODE POSITIONED IN EACH OF SAID SLOTS FOR SENSING SAID RADATION, A PLURALITY OF PHOTODIODES POSITIONED UPON SAID COLLAR FOR SENSING SAID RADIATION, COVER MEANS FOR INTERRUPTING THE STEADY IMPINGEMENT OF INCIDENT SOLAR RADIATION UPON SAID PLURALITY OF PHOTODIODES, EACH OF SAID SOLAR CELLS AND SAID PHOTODIODES BEING CONNECTED TO SAID TRANSMITTER, AND A COMMUTATOR MOUNTED WITHIN SAID SATELLITE AND CONNECTED TO EACH OF SAID PHOTODIODES AND SAID SOLAR CELLS FOR INDIVIDUALLY TIME SELECTING THEIR OUTPUTS WHEREBY THEY MAB BE TRANSMITTED TO EARTH VIA SAID TELEMETRY TRANSMITTER.
Claim 2
Dependent Claim
149 words
IN COMBINATION WITH AN ORBITING SATELLITE HAVING AN INTEGRAL COLLAR PORTION AND A TELEMETRY TRANSMITTER THEREABOARD, AN ATTITUDE DETECTION SYSTEM RESPONSIVE TO SOLAR RADIATION, COMPRISING, A MAST PROTRUDING FROM SAID SATELLITE AND ATTACHED THERETO, A PLURALITY OF SOLAR CELLS DISPOSED ABOUT SAID MAST FOR MEASURING DIRECT SOLAR RADIATION, AN ASSEMBLY MOUNTED ON SAID MAST AND FORMED WITH A PLURALITY OF SLOTS, A PHOTODIODE POSITIONED IN EACH OF SAID SLOTS FOR SENSING SAID RADATION, A PLURALITY OF PHOTODIODES POSITIONED UPON SAID COLLAR FOR SENSING SAID RADIATION, COVER MEANS FOR INTERRUPTING THE STEADY IMPINGEMENT OF INCIDENT SOLAR RADIATION UPON SAID PLURALITY OF PHOTODIODES, EACH OF SAID SOLAR CELLS AND SAID PHOTODIODES BEING CONNECTED TO SAID TRANSMITTER, AND A COMMUTATOR MOUNTED WITHIN SAID SATELLITE AND CONNECTED TO EACH OF SAID PHOTODIODES AND SAID SOLAR CELLS FOR INDIVIDUALLY TIME SELECTING THEIR OUTPUTS WHEREBY THEY MAB BE TRANSMITTED TO EARTH VIA SAID TELEMETRY TRANSMITTER.
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |