US3243631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark-catalytic ignitor
Assignee: Ling Temco Vought Inc
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Filing: 1964-01-16
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Granted: 1966-03-29
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Expires: 1984-01-16
Abstract
No abstract record available.
Inventors
- 👤 Clark Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:26
CPC Classifications
F; F23; F23Q; F23Q13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMBINATION SPARK IGNITOR AND CATALYTIC IGNITOR COMPRISING: AN INNER CONDUCTIVE ELECTRODE, AN OUTER CONDUCTIVE ELECTRODE HAVING AN INNER SURFACE, A HOLLOW INSULATOR, THE INNER SURFACE OF SAID OUTER ELECTRODE BEING SEPARATED FROM THE OUTER SURFACE OF SAID INNER ELECTRODE BY SAID INSULATOR, A HOLLOW CATALYTIC TIP THAT WITHSTANDS HIGH TEMPERATURES JOINED TO ONE END OF THE OUTER ELECTRODE, SAID TIP BEING ADAPTED TO EXTEND INTO THE FLAME AREA OF A COMBUSTION CHAMBER AND TO EXTEND BEYOND SAID INSULATOR AND SAID INNER ELECTRODE TO FUNCTION AS A HEAT SHIELD, THEREBY TO PROTECT SAID INSULATOR AND SAID INNER ELECTRODE FROM HIGH TEMPERATURE OF FLAME, A PORTION OF
Claim 2
Dependent Claim
106 words
A COMBINATION SPARK IGNITOR AND CATALYTIC IGNITOR COMPRISING: AN INNER CONDUCTIVE ELECTRODE, AN OUTER CONDUCTIVE ELECTRODE HAVING AN INNER SURFACE, A HOLLOW INSULATOR, THE INNER SURFACE OF SAID OUTER ELECTRODE BEING SEPARATED FROM THE OUTER SURFACE OF SAID INNER ELECTRODE BY SAID INSULATOR, A HOLLOW CATALYTIC TIP THAT WITHSTANDS HIGH TEMPERATURES JOINED TO ONE END OF THE OUTER ELECTRODE, SAID TIP BEING ADAPTED TO EXTEND INTO THE FLAME AREA OF A COMBUSTION CHAMBER AND TO EXTEND BEYOND SAID INSULATOR AND SAID INNER ELECTRODE TO FUNCTION AS A HEAT SHIELD, THEREBY TO PROTECT SAID INSULATOR AND SAID INNER ELECTRODE FROM HIGH TEMPERATURE OF FLAME, A PORTION OF
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |