Patent US3133411A successfully refreshed from Google Patents.
US3133411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket nozzle with expandible joints
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1961-02-23
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Granted: 1964-05-19
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Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Mccorkle Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:06
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; Y; Y10; Y10S; Y10S60/00; Y10S60/909
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
AN INSULATING AND STRENGTH-SUPPLYING ANNULAR OUTER MEMBER ADAPTED TO SUPPORT AN ANNULAR THROAT INSERT OF A GAS DISCHARGE NOZZLE ASSEMBLY OF A REACTION MOTOR COMPRISING: (A) AN ANNULAR, INSULATING AND STRENGTH-SUPPLYING SLEEVE SIZED TO RECEIVE AND LOCATE, (B) A THROAT INSERT OF REFRACTORY MATERIAL THERMALLY EXPANDED BY FIRING OF SAID MOTOR, (C) AT LEAST ONE LOW MODULUS OF ELASTICITY AND CRUSHABLE ANNULAR PROJECTION EXTENDING FROM SAID SLEEVE FOR SUPPORTINGLY ENGAGING AND LOCATING CONTACT WITH SAID THROAT INSERT AND PERMANENTLY DEFORMED BY THE THERMAL EXPANSION THEREOF, AND (D) AT LEAST ONE ANNULAR GROOVE FORMED IN SAID SLEEVE ADJACENT SAID ANNULAR PROJECTION TO RECEIVE THE PERMANENTLY DEFORMED PORTIONS OF SAID ANNULAR PROJECTION CAUSED BY STRESSES DUE TO SAID THERMAL EXPANSION.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |