US3308623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-thermic ejectors
Assignee: Safran Aircraft Engines SAS
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Filing: 1964-08-05
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Granted: 1967-03-14
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Ferrie Franck Guillaume Michel
- 👤 Marchand-Revers Robert Emile
- 👤 Colombani Don Pierre Loui Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0093; B; B64; B64G; B64G1/00; B64G1/22; B64G1/40; B64G1/411; B64G1/415; H; H05; H05H; H05H1/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
AN ELECTRO-THERMIC EJECTOR COMPRISING AN IONIZATION CHAMBER, MEANS PROVIDING A DISCHARGE NOZZLE OUT OF THE CHAMBER, MEANS FOR SUPPLYING A PROPELLANT TO THE CHAMBER, AT LEAST TWO ELECTRODE DEVICES EACH HAVING AN ELECTRODE PORTION, MEANS FOR ENERGIZING THE ELECTRODE DEVICES TO IONIZE THE PROPELLANT AND PRODUCE AN ELECTRIC DISCHARGE ATTACHING BETWEEN RESPECTIVE ELECTRODE PORTIONS OF THE ELECTRODE DEVICES TO HEAT THE PROPELLANT AND PRODUCE EJECTION THEREOF THROUGH THE NOZZLE, THE ELECTRODE PORTION OF AT LEAST ONE OF SAID ELECTRODE DEVICES BEING MADE OF CONSUMABLE CONDUCTIVE SUBSTANCE ADAPTED TO BE VAPORIZED BY THE ELECTRIC DISCHARGE ATTACHING THERETO TO PRODUCE GAS ADAPTED TO BE IONIZED, HEATED AND EJECTED TOGETHER WITH THE PROPELLANT, AND FEED MEANS FOR RENEWING SAID ELECTRODE PORTION AS FAST AS THE CONSUMABLE SUBSTANCE IS CONSUMED.
Claim 2
Dependent Claim
126 words
AN ELECTRO-THERMIC EJECTOR COMPRISING AN IONIZATION CHAMBER, MEANS PROVIDING A DISCHARGE NOZZLE OUT OF THE CHAMBER, MEANS FOR SUPPLYING A PROPELLANT TO THE CHAMBER, AT LEAST TWO ELECTRODE DEVICES EACH HAVING AN ELECTRODE PORTION, MEANS FOR ENERGIZING THE ELECTRODE DEVICES TO IONIZE THE PROPELLANT AND PRODUCE AN ELECTRIC DISCHARGE ATTACHING BETWEEN RESPECTIVE ELECTRODE PORTIONS OF THE ELECTRODE DEVICES TO HEAT THE PROPELLANT AND PRODUCE EJECTION THEREOF THROUGH THE NOZZLE, THE ELECTRODE PORTION OF AT LEAST ONE OF SAID ELECTRODE DEVICES BEING MADE OF CONSUMABLE CONDUCTIVE SUBSTANCE ADAPTED TO BE VAPORIZED BY THE ELECTRIC DISCHARGE ATTACHING THERETO TO PRODUCE GAS ADAPTED TO BE IONIZED, HEATED AND EJECTED TOGETHER WITH THE PROPELLANT, AND FEED MEANS FOR RENEWING SAID ELECTRODE PORTION AS FAST AS THE CONSUMABLE SUBSTANCE IS CONSUMED.
Claim 3
Dependent Claim
35 words
AN ELECTRO-THERMIC EJECTOR AS CLAIMED IN CLAIM 1, IN WHICH THE CHAMBER IS SUPPLIED WITH PROPELLANT HAVING A LOW MOLECULAR WEIGHT, FOR USE IN AN ARC-JET ROCKET, AND THE CONSUMABLE SUBSTANCE IS AN ALKALI METAL.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |