US3046769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash lamp and ignition means therefor
Assignee: General Electric Co
•
Filing: 1960-04-29
•
Granted: 1962-07-31
•
Expires: 1980-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert M Anderson
- 👤 Louis A Demchock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A FLASH LAMP COMPRISING A SEALED ENVELOPE HAVING AN OXIDIZING ATMOSPHERE THEREIN, A QUANTITY OF FILAMENTARY COMBUSTIBLE MATERIAL LOOSELY ARRANGED WITHIN SAID ENVELOP AND CONSISTING ESSENTIALLY OF MATERIAL OF THE GROUP CONSISTING OF ZICONIUM AND METALLIC MATERIALS HAVING A LOW HEAT-ENERGY IGNITION CHARACTERISTIC SUBSTANTIALLY CORRESPONDING TO THAT OF ZIRCONIUM, AND IGNITION MEANS DISPOSED IN SAID ENVELOPE WITHIN EFFECTIVE IGNITION RANGE OF SAID COMBUSTIBLE MATERIAL, SAID IGNITION MEANS COMPRISING A FULMINATING SUBSTANCE CONSISTING ESSENTIALLY OF MAGNESIUM, ZIRCONIUM, POTASSIUM PERCHLORATE AND MARBLE FLOUR IN THE APPROXIMATE PROPORTIONS BY WEIGHT OF BETWEEN 0.5-7.5% OF MAGNESIUM, 40 TO 85% OF ZIRCONIUM, 5-33% OF POTASSIUM PERCHLORATE AND 5 TO 35% OF MARBLE FLOUR, SAID ADMIXTURE INGREDIENTS BEING BONDED TOGETHER BY A SUITABLE BINDER.
Claim 2
Dependent Claim
118 words
A FLASH LAMP COMPRISING A SEALED ENVELOPE HAVING AN OXIDIZING ATMOSPHERE THEREIN, A QUANTITY OF FILAMENTARY COMBUSTIBLE MATERIAL LOOSELY ARRANGED WITHIN SAID ENVELOP AND CONSISTING ESSENTIALLY OF MATERIAL OF THE GROUP CONSISTING OF ZICONIUM AND METALLIC MATERIALS HAVING A LOW HEAT-ENERGY IGNITION CHARACTERISTIC SUBSTANTIALLY CORRESPONDING TO THAT OF ZIRCONIUM, AND IGNITION MEANS DISPOSED IN SAID ENVELOPE WITHIN EFFECTIVE IGNITION RANGE OF SAID COMBUSTIBLE MATERIAL, SAID IGNITION MEANS COMPRISING A FULMINATING SUBSTANCE CONSISTING ESSENTIALLY OF MAGNESIUM, ZIRCONIUM, POTASSIUM PERCHLORATE AND MARBLE FLOUR IN THE APPROXIMATE PROPORTIONS BY WEIGHT OF BETWEEN 0.5-7.5% OF MAGNESIUM, 40 TO 85% OF ZIRCONIUM, 5-33% OF POTASSIUM PERCHLORATE AND 5 TO 35% OF MARBLE FLOUR, SAID ADMIXTURE INGREDIENTS BEING BONDED TOGETHER BY A SUITABLE BINDER.
References Cited (Backward Citations)
US2098341A
Cited
US2375742A
Cited
GB604488A
Cited
US2798368A
Cited
US2756577A
Cited
US2982119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |