US3129560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convectively cooled rocket nozzle
Assignee: Individual
•
Filing: 1960-06-13
•
Granted: 1964-04-21
•
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 01:24
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.
References Cited (Backward Citations)
US2354151A
Cited
US2407164A
Cited
US2574190A
Cited
FR1003758A
Cited
US2779281A
Cited
US2770097A
Cited
FR1108090A
Cited
FR1153115A
Cited
US3026806A
Cited
US2943115A
Cited
US3048972A
Cited
US2992960A
Cited
US2922291A
Cited
US2962221A
Cited
US3014353A
Cited
US3022190A
Cited
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 |