Patent US3129560A successfully refreshed from Google Patents.
US3129560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convectively cooled rocket nozzle
Assignee: Individual
•
Filing: 1960-06-13
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Granted: 1964-04-21
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Expires: 1980-06-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Prosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:23
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/974; F02K9/972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CONVERGING-DIVERGING ROCKET NOZZLE COMPRISING AN INNER ANNULAR GAS-TIGHT WALL OF A HEAT-RESISTANT MATERIAL WHICH IS SHAPED INTERNALLY ACCORDING TO THE REQUIREMENTS OF NOZZLE DESIGN; AN OUTER ANNULAR GAS-TIGHT WALL JOINED TO SAID INNER WALL SO AS TO FORM AN ANNULAR CONTAINER, SAID CONTAINER BEING GAS-TIGHT AT THE POINTS OF JOINDER OF SAID WALLS AND HAVING APERTURES COMMUNICATING WITH THE EXTERIOR OF SAID CONTAINER THROUGH THE WALLS THEREOF AND A SOLID FUSIBLE AND VAPORIZABLE MATERIAL HAVING A LOWER VAPORIZATION POINT THAN THE MELTING POINT OF SAID HEAT RESISTANT MATERIAL POSITIONED IN AND SUBSTANTIALLY FILLING SAID CONTAINER, SAID MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF BORON, NICKEL, ANTIMONY TRIOXIDE, LITHIUM FLUORIDE, ZINC, IRON, ALUMINA AND SILICA.
Claim 2
Dependent Claim
116 words
A CONVERGING-DIVERGING ROCKET NOZZLE COMPRISING AN INNER ANNULAR GAS-TIGHT WALL OF A HEAT-RESISTANT MATERIAL WHICH IS SHAPED INTERNALLY ACCORDING TO THE REQUIREMENTS OF NOZZLE DESIGN; AN OUTER ANNULAR GAS-TIGHT WALL JOINED TO SAID INNER WALL SO AS TO FORM AN ANNULAR CONTAINER, SAID CONTAINER BEING GAS-TIGHT AT THE POINTS OF JOINDER OF SAID WALLS AND HAVING APERTURES COMMUNICATING WITH THE EXTERIOR OF SAID CONTAINER THROUGH THE WALLS THEREOF AND A SOLID FUSIBLE AND VAPORIZABLE MATERIAL HAVING A LOWER VAPORIZATION POINT THAN THE MELTING POINT OF SAID HEAT RESISTANT MATERIAL POSITIONED IN AND SUBSTANTIALLY FILLING SAID CONTAINER, SAID MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF BORON, NICKEL, ANTIMONY TRIOXIDE, LITHIUM FLUORIDE, ZINC, IRON, ALUMINA AND SILICA.
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |