US3453442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizon sensor utilizing reflective telescope optics
Assignee: Barnes Engineering Co
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Filing: 1965-02-18
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Granted: 1969-07-01
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Peter E Spangenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/789
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A CONICAL SCAN RADIATION DETECTION DEVICE COMPRISING A COMBINATION (A) A REFLECTIVE TELESCOPE OPTICAL MEANS INCLUDING A REFLECTING PRIMARY OPTIC HAVING A CENTRAL OPENING THEREIN AND A REFLECTING SECONDARY OPTIC, (B) DRIVE MEANS HAVING AN AXIS OF ROTATION COUPLED TO SAID PRIMARY OPTIC FOR ONLY ROTATING SAID PRIMARY OPTIC OF SAID OPTICAL MEANS ABOUT SAID AXIS OF ROTATION WHICH COINCIDES WITH THE OPTICAL AXIS OF OPTICAL MEANS, SAID SECONDARY OPTIC BEING STATICALLY POSITIONED ON SAID OPTICAL AXIS, (C) SAID PRIMARY OPTIC BEING TILTED WITH RESPECT TO SAID AXIS OF ROTATION TO PRODUCE A CONICAL SCAN, THE ANGLE OF WHICH IS DETERMINED BY THE TILT OF SAID PRIMARY OPTIC, AND (D) A DETECTOR MOUNTED ON THE OPTICAL AXIS OF SAID OPTICAL MEANS OPPOSITE SAID SECONDARY OPTIC IN PROXIMITY TO SAID CENTRAL OPENING TO RECEIVE RADIATION FROM TARGETS IN THE CONICAL SCAN FIELD OF VIEW OF SAID REFLECTIVE TELESCOPE OPTICAL MEANS.
Claim 2
Dependent Claim
149 words
A CONICAL SCAN RADIATION DETECTION DEVICE COMPRISING A COMBINATION (A) A REFLECTIVE TELESCOPE OPTICAL MEANS INCLUDING A REFLECTING PRIMARY OPTIC HAVING A CENTRAL OPENING THEREIN AND A REFLECTING SECONDARY OPTIC, (B) DRIVE MEANS HAVING AN AXIS OF ROTATION COUPLED TO SAID PRIMARY OPTIC FOR ONLY ROTATING SAID PRIMARY OPTIC OF SAID OPTICAL MEANS ABOUT SAID AXIS OF ROTATION WHICH COINCIDES WITH THE OPTICAL AXIS OF OPTICAL MEANS, SAID SECONDARY OPTIC BEING STATICALLY POSITIONED ON SAID OPTICAL AXIS, (C) SAID PRIMARY OPTIC BEING TILTED WITH RESPECT TO SAID AXIS OF ROTATION TO PRODUCE A CONICAL SCAN, THE ANGLE OF WHICH IS DETERMINED BY THE TILT OF SAID PRIMARY OPTIC, AND (D) A DETECTOR MOUNTED ON THE OPTICAL AXIS OF SAID OPTICAL MEANS OPPOSITE SAID SECONDARY OPTIC IN PROXIMITY TO SAID CENTRAL OPENING TO RECEIVE RADIATION FROM TARGETS IN THE CONICAL SCAN FIELD OF VIEW OF SAID REFLECTIVE TELESCOPE OPTICAL MEANS.
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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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |