Patent US3511441A successfully refreshed from Google Patents.
US3511441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector with variable inner flap
Assignee: RTX Corp
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Filing: 1964-10-01
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Granted: 1970-05-12
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Tumicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:15
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN A EJECTOR TYPE EXHAUST NOZZLE FOR A HIGH SPEED VEHICLE, AN ENGINE EXHAUST DUCT SYSTEM, A VARIABLE AREA PRIMARY EXHAUST NOZZLE ATTACHED TO THE AFTER END OF SAID EXHAUST DUCT SYSTEM AND COOPERATING THEREWITH TO DEFINE A FIRST GAS PASSAGE, A FIXED SHROUD HAVING A FORWARD AND AN AFTER EDGE AND ENVELOPING SAID SYSTEM AND SAID NOZZLE TO DEFINE A SECOND GAS PASSAGE THEREBETWEEN, A PLURALITY OF FLAPS HAVING FORWARD AND AFTER EDGES AND BEING POSITIONED BETWEEN SAID SHROUD AND SAID NOZZLE, AND SUSPENSION MEANS ATTACHED TO SAID SHROUD APPROXIMATELY MIDWAY BETWEEN SAID FORWARD AND AFTER EDGES THEREOF AND PIVOTALLY SUSPENDING SAID FLAP FORWARD EDGES LATERALLY BETWEEN SAID SHROUD AND SAID NOZZLE SO THAT SAID FLAPS ARE PIVOTABLE BETWEEN AN INNER POSITION WHEREIN SAID FLAP AND SAID SHROUD FORM A THIRD GAS PASSAGE THEREBETWEEN AND AN OUTER POSITION WHEREIN SAID FLAPS CONTACT SAID SHROUD AFTER EDGE AND PRESENT A SMOOTH, DIVERGENT EXPANSION SURFACE REARWARD OF SAID NOZZLE.
Claim 2
Dependent Claim
158 words
IN A EJECTOR TYPE EXHAUST NOZZLE FOR A HIGH SPEED VEHICLE, AN ENGINE EXHAUST DUCT SYSTEM, A VARIABLE AREA PRIMARY EXHAUST NOZZLE ATTACHED TO THE AFTER END OF SAID EXHAUST DUCT SYSTEM AND COOPERATING THEREWITH TO DEFINE A FIRST GAS PASSAGE, A FIXED SHROUD HAVING A FORWARD AND AN AFTER EDGE AND ENVELOPING SAID SYSTEM AND SAID NOZZLE TO DEFINE A SECOND GAS PASSAGE THEREBETWEEN, A PLURALITY OF FLAPS HAVING FORWARD AND AFTER EDGES AND BEING POSITIONED BETWEEN SAID SHROUD AND SAID NOZZLE, AND SUSPENSION MEANS ATTACHED TO SAID SHROUD APPROXIMATELY MIDWAY BETWEEN SAID FORWARD AND AFTER EDGES THEREOF AND PIVOTALLY SUSPENDING SAID FLAP FORWARD EDGES LATERALLY BETWEEN SAID SHROUD AND SAID NOZZLE SO THAT SAID FLAPS ARE PIVOTABLE BETWEEN AN INNER POSITION WHEREIN SAID FLAP AND SAID SHROUD FORM A THIRD GAS PASSAGE THEREBETWEEN AND AN OUTER POSITION WHEREIN SAID FLAPS CONTACT SAID SHROUD AFTER EDGE AND PRESENT A SMOOTH, DIVERGENT EXPANSION SURFACE REARWARD OF SAID NOZZLE.
References Cited (Backward Citations)
US3214905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |