US3446970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sensitive high accuracy horizon seeker
Assignee: Kollsman Instrument Corp
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Filing: 1963-05-15
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Granted: 1969-05-27
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Saul Moskowitz
- 👤 Harry Wade Burkhart Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:17
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/785; G01S3/786; G01S3/7868; B; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/36; B64G1/365
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
215 words
A HORIZON TRACKER COMPRISING AT LEAST FIRST AND SECOND TWO-AXIS EDGE-SENSOR MOUNTED ON A COMMON PLATFORM; EACH OF SAID FIRST AND SECOND TWO-AXIS EDGE-SENSORS HAVING FIRST AND SECOND RESPECTIVE HORIZON SCANNERS DISPOSED AT A SMALL ANGLE WITH RESPECT TO ONE ANOTHER FOR OBSERVING A SMALL HORIZON SEGMENT; SAID FIRST AND SECOND TWO-AXIS EDGE-SENSOR HAVING A COMMON ELEVATION PLANE; SAID FIRST AND SECOND TWO-AXIS EDGE-SENSORS BEING DISPOSED AT AN ANGLE TO ONE ANOTHER TO OBSERVE DIFFERENT PORTIONS OF A HORIZON; ADJUSTABLE MOUNTING MEANS CONNECTING EACH OF SAID FIRST AND SECOND TWO-AXIS EDGE-SENSORS TO SAID COMMON PLATFORM; EACH OF SAID EDGE-SENSORS TO SAID OUTPUT SIGNALS; EACH OF SAID FIRST AND SECOND AND TWO-AXIS RESPECT TO EACH OF SAID EDGE-SENSORS; AND SERVO MEANS CONNECTED TO SAID ADJUSTABLE MOUNTING MEANS AND TO SAID OUTPUT SIGNALS; EACH OF SAID FIRST AND SECOND TWO-AXIS EDGE-SENSORS BEING ADJUSTABLE IN THEIR SAID ELEVATION PLANE RESPONSIVE TO THEIR RESPECTIVE TOTAL OUTPUT SIGNAL FROM THEIR RESPECTIVE SCANNERS AND BEING ADJUSTABLE IN THEIR CROSS-ELEVATION PLANE RESPONSIVE TO THE DIFFERENCE IN OUTPUT SIGNALS FROM THEIR RESPECTIVE SCANNERS, AND A THIRD TWO-AXIS EDGE-SENSOR MOUNTED ON SAID COMMON PLATFORM AND HAVING AN ELEVATION PLANE COMMON TO THE ELEVATION PLANE OF SAID FIRST AND SECOND TWO-AXIS EDGE-SENSORS; SAID THIRD TWO-AXIS EDGE-SENSOR ADDING ONE DEGREE OF REDUNDANCY TO SAID HORIZON TRACKER.
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) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |