US3353354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioisotope attitude control engine
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1965-07-06
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Granted: 1967-11-21
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Burnam I Friedman
- 👤 John S Martinez
- 👤 Jortner Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:56
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/02; Y; Y02; Y02E; Y02E30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A HEATED GAS INTERMITTENT, THRUSTOR COMPRISING: (A) MEANS FOR STORING A PROPELLANT FLUID; (B) A RADIOISOTOPE CAPSULE; (C) HEAT EXCHANGER MEANS SURROUNDING SAID CAPSULE FOR STORING THE HEAT EMISSION THEREFROM, SAID HEAT EXCHANGER MEANS HAVING PASSAGES THERETHROUGH AND AN INLET CONNECTED TO SAID PROPELLANT STORING MEANS AND AN OUTLET; (D) AT LEAST ONE NOZZLE CONNECTED TO SAID OUTLET; (E) REGULATOR VALVE MEANS INTERPOSED BETWEEN SAID PROPELLANT SUPPLY MEANS AND SAID HEAT EXCHANGER INLET; (F) FLOW CONTROL VALVE MEANS INTERPOSED BETWEEN SAID HEAT EXCHANGER OUTLET AND SAID NOZZLE; AND (G) SAID HEAT EXCHANGER INCLUDING A PLURALITY OF CONCENTRIC WALLS FORMING A PLURALITY OF CHAMBERS, THE OUTER WALL BEING COVERED WITH INSULATION AND HAVING SAID INLET EXTENDING THERETHROUGH INTO THE OUTER CHAMBER, THE INNER WALLS BEING PERFORATED TO FORM SAID PASSAGE, AND THE INNERMOST WALL FORMING AN
Claim 2
Dependent Claim
135 words
A HEATED GAS INTERMITTENT, THRUSTOR COMPRISING: (A) MEANS FOR STORING A PROPELLANT FLUID; (B) A RADIOISOTOPE CAPSULE; (C) HEAT EXCHANGER MEANS SURROUNDING SAID CAPSULE FOR STORING THE HEAT EMISSION THEREFROM, SAID HEAT EXCHANGER MEANS HAVING PASSAGES THERETHROUGH AND AN INLET CONNECTED TO SAID PROPELLANT STORING MEANS AND AN OUTLET; (D) AT LEAST ONE NOZZLE CONNECTED TO SAID OUTLET; (E) REGULATOR VALVE MEANS INTERPOSED BETWEEN SAID PROPELLANT SUPPLY MEANS AND SAID HEAT EXCHANGER INLET; (F) FLOW CONTROL VALVE MEANS INTERPOSED BETWEEN SAID HEAT EXCHANGER OUTLET AND SAID NOZZLE; AND (G) SAID HEAT EXCHANGER INCLUDING A PLURALITY OF CONCENTRIC WALLS FORMING A PLURALITY OF CHAMBERS, THE OUTER WALL BEING COVERED WITH INSULATION AND HAVING SAID INLET EXTENDING THERETHROUGH INTO THE OUTER CHAMBER, THE INNER WALLS BEING PERFORATED TO FORM SAID PASSAGE, AND THE INNERMOST WALL FORMING AN
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |