US3330985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage igniter with fluid feed through the insulator core center
Assignee: Motors Liquidation Co
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Filing: 1965-11-08
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Granted: 1967-07-11
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 William J Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:11
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/264; F02C7/266; F23; F23Q; F23Q3/00; F23Q3/006; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A HIGH VOLTAGE IGNITER PLUG COMPRISING AN ALUMINA BASE CERAMIC INSULATOR HAVING A CENTERBORE THERETHROUGH, A STATIONARY CENTER ELECTRODE POSITIONED LONGITUDINALLY WITHIN SAID INSULATOR CENTERBORE AND HAVING A FIRING TIP PORTION, SAID CENTER ELECTRODE BEING SEPARATED OVER A SUBSTANTIAL LENGTH FROM SAID INSULATOR BY AN ANNULAR SPACE, AND MEANS COMMUNICATING SAID ANNULAR SPACE WITH AN OXIDIZING GAS SOURCE, SAID ANNULAR SPACE PROVIDING A PASSAGEWAY FOR THE FLOW OF SAID OXIDIZING GAS ABOUT SAID FIRING TIP PORTION DURING SPARKING TO INCREASE THE ENERGY RELEASE OF THE SPARK ARC FROM SAID PLUG.
Claim 2
Dependent Claim
90 words
A HIGH VOLTAGE IGNITER PLUG COMPRISING AN ALUMINA BASE CERAMIC INSULATOR HAVING A CENTERBORE THERETHROUGH, A STATIONARY CENTER ELECTRODE POSITIONED LONGITUDINALLY WITHIN SAID INSULATOR CENTERBORE AND HAVING A FIRING TIP PORTION, SAID CENTER ELECTRODE BEING SEPARATED OVER A SUBSTANTIAL LENGTH FROM SAID INSULATOR BY AN ANNULAR SPACE, AND MEANS COMMUNICATING SAID ANNULAR SPACE WITH AN OXIDIZING GAS SOURCE, SAID ANNULAR SPACE PROVIDING A PASSAGEWAY FOR THE FLOW OF SAID OXIDIZING GAS ABOUT SAID FIRING TIP PORTION DURING SPARKING TO INCREASE THE ENERGY RELEASE OF THE SPARK ARC FROM SAID PLUG.
References Cited (Backward Citations)
US2630107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |