US3142960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-material refractory rocket parts and fabrication methods
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1961-07-06
•
Granted: 1964-08-04
•
Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Bluck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; Y; Y10; Y10S; Y10S60/00; Y10S60/909; Y10T; Y10T29/00; Y10T29/49; Y10T29/49346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A ROCKET NOZZLE THROAT HAVING A CONVERGING-DIVERGING SURFACE TO BE DIRECTLY EXPOSED TO ABLATION PRODUCING CONDITIOINS OF HIGH VELOCITY GAS FLOW AND HIGH TEMPERATURE COMPRISING AN EDGE EXPOSED STRUCTURE HAVING (A) SUBSTANTIALLY PARALLEL AND VARIABLY SPACED APART SHEET-LIKE LAMINAE, (B) SAID LAMINAE EACH HAVING A THIN FLEXIBLE STRENGTH PROVIDING, THERMAL SHOCK RESISTING, UNITARY AND YIELDABLY NON-BRITTLE REFRACTORY RESISTANTS TO SAID CONDITIONS, (C) SAID REFRACTORY LAMINAE BEING INTERCONNECTED AND SPACED APART BY BONDED ALTERNATE LAYERS OF BONDING MATERIAL, (D) SAID BONDING MATERIAL, POSITIONED BETWEEN SAID LAMINAE, HAVING A GREATER THICKNESS THAN SAID LAMINAE, AND (E) MEANS TO BOND AND ANCHOR SAID LAMINAE IN POSITION TO PROVIDE RESISTANCE AGAINST BEING PULLED OUT OF POSITION BY SAID CONDITIONS.
Claim 2
Dependent Claim
115 words
A ROCKET NOZZLE THROAT HAVING A CONVERGING-DIVERGING SURFACE TO BE DIRECTLY EXPOSED TO ABLATION PRODUCING CONDITIOINS OF HIGH VELOCITY GAS FLOW AND HIGH TEMPERATURE COMPRISING AN EDGE EXPOSED STRUCTURE HAVING (A) SUBSTANTIALLY PARALLEL AND VARIABLY SPACED APART SHEET-LIKE LAMINAE, (B) SAID LAMINAE EACH HAVING A THIN FLEXIBLE STRENGTH PROVIDING, THERMAL SHOCK RESISTING, UNITARY AND YIELDABLY NON-BRITTLE REFRACTORY RESISTANTS TO SAID CONDITIONS, (C) SAID REFRACTORY LAMINAE BEING INTERCONNECTED AND SPACED APART BY BONDED ALTERNATE LAYERS OF BONDING MATERIAL, (D) SAID BONDING MATERIAL, POSITIONED BETWEEN SAID LAMINAE, HAVING A GREATER THICKNESS THAN SAID LAMINAE, AND (E) MEANS TO BOND AND ANCHOR SAID LAMINAE IN POSITION TO PROVIDE RESISTANCE AGAINST BEING PULLED OUT OF POSITION BY SAID CONDITIONS.
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |