US3134223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape shielded nozzle
Assignee: Lockheed Martin Corp
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Filing: 1961-03-06
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Granted: 1964-05-26
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Eugene E Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:31
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A ROCKET MOTOR, A NOZZLE COMPRISING A SHELL DEFINING A RESTRICTED THROAT PORTION AND AN OUTWARDLY FLARED BELL PORTION, A PROTECTIVE LAYER OF HIGH TEMPERATURE RESISTANT MATERIAL COVERING THE INNER SURFACES OF SAID THROAT AND BELL PORTIONS SO AS TO SHIELD THEM FROM THE EROSIVE EFFECTS OF HOT GASES ISSUING FROM SAID NOZZLE AT HIGH VELOCITY, MEANS FOR MOVING THE LAYER OF PROTECTIVE MATERIAL REARWARDLY THROUGH SAID NOZZLE AT A RATE SUCH THAT THE SAID PROTECTIVE LAYER IS REPLACED BEFORE IT HAS BEEN DESTROYED BY SAID HOT GASES.
Claim 2
Dependent Claim
89 words
IN A ROCKET MOTOR, A NOZZLE COMPRISING A SHELL DEFINING A RESTRICTED THROAT PORTION AND AN OUTWARDLY FLARED BELL PORTION, A PROTECTIVE LAYER OF HIGH TEMPERATURE RESISTANT MATERIAL COVERING THE INNER SURFACES OF SAID THROAT AND BELL PORTIONS SO AS TO SHIELD THEM FROM THE EROSIVE EFFECTS OF HOT GASES ISSUING FROM SAID NOZZLE AT HIGH VELOCITY, MEANS FOR MOVING THE LAYER OF PROTECTIVE MATERIAL REARWARDLY THROUGH SAID NOZZLE AT A RATE SUCH THAT THE SAID PROTECTIVE LAYER IS REPLACED BEFORE IT HAS BEEN DESTROYED BY SAID HOT GASES.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |