US3286997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex fuel injector
Assignee: ATK Launch Systems LLC
•
Filing: 1961-04-18
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Granted: 1966-11-22
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 James D Ledbetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:39
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/52; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/105; F23D11/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A VORTEX FUEL INJECTOR FOR COMBUSTION CHAMBERS COMPRISING, IN COMBINATION, A CYLINDRICAL VORTEX CHAMBER MOUNTED ON AND COMMUNICATING WITH A COMBUSTION CHAMBER, MEANS COMMUNICATING WITH SAID VORTEX CHAMBER AT CIRCUMFERENTIALLY SPACED PORTS TO SUPPLY GASEOUS FUEL TANGENTIALLY THERETO TO ESTABLISH A FUEL VORTEX THEREIN, SECOND MEANS COMMUNICATING WITH SAID VORTEX CHAMBER TO SUPPLY LIQUID FUEL FROM A NOZZLE LOCATED ALONG THE CENTRAL AXIS OF SAID VORTEX CHAMBER INTO SAID VORTEX, AND ADDITIONAL
Claim 2
Dependent Claim
72 words
A VORTEX FUEL INJECTOR FOR COMBUSTION CHAMBERS COMPRISING, IN COMBINATION, A CYLINDRICAL VORTEX CHAMBER MOUNTED ON AND COMMUNICATING WITH A COMBUSTION CHAMBER, MEANS COMMUNICATING WITH SAID VORTEX CHAMBER AT CIRCUMFERENTIALLY SPACED PORTS TO SUPPLY GASEOUS FUEL TANGENTIALLY THERETO TO ESTABLISH A FUEL VORTEX THEREIN, SECOND MEANS COMMUNICATING WITH SAID VORTEX CHAMBER TO SUPPLY LIQUID FUEL FROM A NOZZLE LOCATED ALONG THE CENTRAL AXIS OF SAID VORTEX CHAMBER INTO SAID VORTEX, AND ADDITIONAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |