US3135201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracer material for missiles
Assignee: Saab Bofors AB
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Filing: 1961-03-29
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Granted: 1964-06-02
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hansson Oscar Bernhard
- 👤 Lofstedt Karl Elov
- 👤 Nedeby Henry Torst Nils-Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:02
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A LUMINOUS TRACER FOR USE WITH A MISSILE, COMPRISING A CONTAINER, TRACER MATERIAL OF A PLURALITY OF COMBUSTIBLE, LIGHT-GENERATING COMPOSITIONS IN SAID CONTAINER, SAID COMPOSITIONS HAVING DIFFERENT BURNING TIMES FOR A GIVEN MASS AND GENERATING LIGHT OF DIFFERENT INTENSITIES WHEN IGNITED, THE BURNING TIME AND THE LIGHT INTENSITIES OF THE COMPOSITION BEING INVERSELY PROPORTIONAL, SAID COMPOSITIONS BEING STACKED IN SAID CONTAINER TO FORM A COLUMN IN WHICH THE COMPOSTION ARE SUPERIMPOSED IN AN ORDER SUCH THAT THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY IS LOCATED AT ONE END OF THE COLUMN AND THE COMPOSITION HAVING THE SHORTEST BURNING TIME AND GENERATING THE HIGHEST LIGHT INTENSITY IS LOCATED AT THE OTHER END THEREOF, AND A PRIMING CHARGE DISPOSED IN SAID CONTAINER ADJACENT THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY, WHEREBY UPON IGNITION OF THE COLUMN AT THE END THEREOF INCLUDING THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY, THE INTENSITY OF THE LIGHT EMITTED BY THE TRACER MATERIAL INCREASES AS THE CONSUMPTION THEREOF PROGRESSES TOWARD THE OTHER END OF THE COLUMN SO THAT THE LIGHT INTENSITY OF THE TRACER AS THE TIME AND DISTANCE OF FLIGHT OF THE MISSILE INCREASES PROVIDES A LIGHT INTENSITY WHICH, AS SEEN BY A STATIONARY OBSERVER, REMAINS APPROXIMATELY CONSTANT.
Claim 2
Dependent Claim
220 words
A LUMINOUS TRACER FOR USE WITH A MISSILE, COMPRISING A CONTAINER, TRACER MATERIAL OF A PLURALITY OF COMBUSTIBLE, LIGHT-GENERATING COMPOSITIONS IN SAID CONTAINER, SAID COMPOSITIONS HAVING DIFFERENT BURNING TIMES FOR A GIVEN MASS AND GENERATING LIGHT OF DIFFERENT INTENSITIES WHEN IGNITED, THE BURNING TIME AND THE LIGHT INTENSITIES OF THE COMPOSITION BEING INVERSELY PROPORTIONAL, SAID COMPOSITIONS BEING STACKED IN SAID CONTAINER TO FORM A COLUMN IN WHICH THE COMPOSTION ARE SUPERIMPOSED IN AN ORDER SUCH THAT THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY IS LOCATED AT ONE END OF THE COLUMN AND THE COMPOSITION HAVING THE SHORTEST BURNING TIME AND GENERATING THE HIGHEST LIGHT INTENSITY IS LOCATED AT THE OTHER END THEREOF, AND A PRIMING CHARGE DISPOSED IN SAID CONTAINER ADJACENT THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY, WHEREBY UPON IGNITION OF THE COLUMN AT THE END THEREOF INCLUDING THE COMPOSITION HAVING THE LONGEST BURNING TIME AND GENERATING THE LOWEST LIGHT INTENSITY, THE INTENSITY OF THE LIGHT EMITTED BY THE TRACER MATERIAL INCREASES AS THE CONSUMPTION THEREOF PROGRESSES TOWARD THE OTHER END OF THE COLUMN SO THAT THE LIGHT INTENSITY OF THE TRACER AS THE TIME AND DISTANCE OF FLIGHT OF THE MISSILE INCREASES PROVIDES A LIGHT INTENSITY WHICH, AS SEEN BY A STATIONARY OBSERVER, REMAINS APPROXIMATELY CONSTANT.
References Cited (Backward Citations)
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |