US3320889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonation initiator
Assignee: Aerojet Rocketdyne Inc
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Filing: 1965-02-12
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Granted: 1967-05-23
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Charles E Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:24
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IGNITER APPARATUS FOR BEING RECEIVED WITHIN A CHAMBER CONTAINING AN EXPLOSIVE CHARGE TO BE DETONATED, COMPRISING: A TUBE-LIKE ELECTRODE HAVING ITS ENDS CLOSED BY INSULATIVE MATERIAL TO DEFINE A SEALED CHAMBER WITHIN; A PAIR OF ELONGATED ELECTRODES EXTENDING THROUGH THE INSULATIVE MATERIAL WITH ONE END OF EACH DISPOSED WITHIN THE SEALED CHAMBER AND THE OTHER ENDS LYING OUTWARDLY OF THE INSULATIVE MATERIAL; AN IONIZABLE GAS DISPOSED WITHIN THE SEALED CHAMBER; VAPORIZABLE RESISTANCE MEANS HAVING A PAIR OF TERMINALS, ONE OF WHICH TERMINALS IS AFFIXED TO AND ELECTRICALLY RELATED WITH THE TUBE-LIKE ELECTRODE; A SELECTIVELY SWITCHABLE REMOTELY LOCATED SOURCE OF ELECTRIC POWER; AND INTERCONNECTING LEAD WIRES RELATING THE SOURCE OF POWER TO THE TUBE-LIKE AND ELONGATED ELECTRODES AND THE OTHER TERMINAL OF THE VAPORIZABLE RESISTANCE MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |