US3183295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light pipe
Assignee: ACF Industries Inc
•
Filing: 1962-06-11
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Granted: 1965-05-11
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Walter E Myles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:10
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A RADAR SIMULATOR, A SYSTEM FOR SIMULATING A COSECANT SQUARED O TYPE RADAR ANTENNA BEAM COMPRISING: A HIGH INTENSITY SOURCE OF LIGHT; A SAPPHIRE LIGHT PIPE HAVING A VERTICALLY DISPOSED LONGITUDINAL AXIS AND A CYLINDRICAL SURFACE AT THE EMITTING END OF THE LIGHT PIPE; A CONDENSING LENS SYSTEM FOR FOCUSSING LIGHT RAYS FROM SAID SOURCE ALONG SAID LIGHT PIPE AXIS; TWO INTERSECTING PLANE REFLECTING SURFACES OBLIQUE TO THE PATHS OF SAID RAYS WITHIN THE LIGHT PIPE FORMING A DIHEDRAL ANGLE SUBTENDING THE CYLINDRICAL SURFACE FOR REFLECTING SAID RAYS VERTICALLY THROUGH THE CYLINDRICAL SURFACE INTO A COSECANT SQUARED O TYPE PATTERN AND HORIZONTALLY INTO A DESIRED BEAM WIDTH; AND SUBSTANTIALY PARALLEL SCRATCHES ON SAID CYLINDRICAL SURFACE FOR DIFFUSING SAID REFLECTED RAYS ONLY HORIZONTALLY.
Claim 2
Dependent Claim
123 words
IN A RADAR SIMULATOR, A SYSTEM FOR SIMULATING A COSECANT SQUARED O TYPE RADAR ANTENNA BEAM COMPRISING: A HIGH INTENSITY SOURCE OF LIGHT; A SAPPHIRE LIGHT PIPE HAVING A VERTICALLY DISPOSED LONGITUDINAL AXIS AND A CYLINDRICAL SURFACE AT THE EMITTING END OF THE LIGHT PIPE; A CONDENSING LENS SYSTEM FOR FOCUSSING LIGHT RAYS FROM SAID SOURCE ALONG SAID LIGHT PIPE AXIS; TWO INTERSECTING PLANE REFLECTING SURFACES OBLIQUE TO THE PATHS OF SAID RAYS WITHIN THE LIGHT PIPE FORMING A DIHEDRAL ANGLE SUBTENDING THE CYLINDRICAL SURFACE FOR REFLECTING SAID RAYS VERTICALLY THROUGH THE CYLINDRICAL SURFACE INTO A COSECANT SQUARED O TYPE PATTERN AND HORIZONTALLY INTO A DESIRED BEAM WIDTH; AND SUBSTANTIALY PARALLEL SCRATCHES ON SAID CYLINDRICAL SURFACE FOR DIFFUSING SAID REFLECTED RAYS ONLY HORIZONTALLY.
References Cited (Backward Citations)
US2227422A
Cited
US2247258A
Cited
GB664193A
Cited
US2724766A
Cited
US2932294A
Cited
US2987960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |