Patent US3251261A successfully refreshed from Google Patents.
US3251261A
Expired / Lapsed
US
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Stellar aberrascope
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1960-05-02
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Granted: 1966-05-17
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Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Robert L Lillestrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:19
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/785; G01S3/786; G01S3/7867
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A TELESCOPIC SYSTEM FOR MEASURING THE APPARENT MOTIONS OF PAIRS OF SUBSTANTIALLY DIAMETRICALLY OPPOSED SOURCES OF RADIATION WHEREIN THE POSITION OF ONE SOURCE APPEARS OF CHANGE RELATIVE TO THE POSITION OF THE OTHER SOURCE, SAID APPARENT MOTIONS BEING CAUSED BY VELOCITY ABERRATION DURING MOVEMENT OF SAID TELESCOPIC SYSTEM RELTAIVE TO SAID PAIR OF SOURCES, A SUPPORT MEMBER; A PAIR OF GENERALLY OPPOSITELY DIRECTED TELESCOPE MEANS MOUNTED ON SAID SUPPORT MEMBER WIH THE OPTICAL AXES THEREOF SUBSTANTIALLY COINCIDENT FOR FOCUSING SAID RADIATION FROM SAID SOURCE TO FORM IMAGES, SAID PAIR OF TELESCOPE MEANS BEING MOUNTED ON SAID SUPPORT MEMBER FOR ROTATION ON SAID COINCIDENT AXES; AND MEANS RESPONSIVE TO CHANGES OF THE POSITION OF SAID IMAGES UPON ROTATION OF SAID TELESCOPE MEANS ON SAID COINCIDENT AXES THROUGH A PREFERRED ANGLE OF ROTATION FOR INDICATING THE APPARENT MOTIONS OF SAID PAIR OF SOURCES.
Claim 2
Dependent Claim
142 words
IN A TELESCOPIC SYSTEM FOR MEASURING THE APPARENT MOTIONS OF PAIRS OF SUBSTANTIALLY DIAMETRICALLY OPPOSED SOURCES OF RADIATION WHEREIN THE POSITION OF ONE SOURCE APPEARS OF CHANGE RELATIVE TO THE POSITION OF THE OTHER SOURCE, SAID APPARENT MOTIONS BEING CAUSED BY VELOCITY ABERRATION DURING MOVEMENT OF SAID TELESCOPIC SYSTEM RELTAIVE TO SAID PAIR OF SOURCES, A SUPPORT MEMBER; A PAIR OF GENERALLY OPPOSITELY DIRECTED TELESCOPE MEANS MOUNTED ON SAID SUPPORT MEMBER WIH THE OPTICAL AXES THEREOF SUBSTANTIALLY COINCIDENT FOR FOCUSING SAID RADIATION FROM SAID SOURCE TO FORM IMAGES, SAID PAIR OF TELESCOPE MEANS BEING MOUNTED ON SAID SUPPORT MEMBER FOR ROTATION ON SAID COINCIDENT AXES; AND MEANS RESPONSIVE TO CHANGES OF THE POSITION OF SAID IMAGES UPON ROTATION OF SAID TELESCOPE MEANS ON SAID COINCIDENT AXES THROUGH A PREFERRED ANGLE OF ROTATION FOR INDICATING THE APPARENT MOTIONS OF SAID PAIR OF SOURCES.
References Cited (Backward Citations)
US2688896A
Cited
FR1021436A
Cited
US2953621A
Cited
US2930545A
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US2975668A
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US3107168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |