US3381897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated nozzle throat construction
Assignee: United States Department of the Air Force
•
Filing: 1966-11-02
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Granted: 1968-05-07
•
Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Wennerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:38
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A HIGH FLUID PRESSURE AND HIGH TEMPERATURE LAMINATED THROAT NOZZLE CONSTRUCTION HAVING A CONSTRICTED AXIAL THROAT PASSAGE AND A PLURALITY OF ANNULARLY SPACED SURROUNDING COOLANT CIRCULATING PASSAGES DISPOSED IN PREDETERMINED SPACED RELATION AROUND SAID AXIAL THROAT PASSAGE COMPRISING, A MULTITUDE OF INDIVIDUALLY FORMED DISCS OF AT LEAST TWO DIFFERENT METALLIC SHEET MATERIALS, EACH DISC HAVING A CENTRAL THROAT OPENING AND SURROUNDING COOLANT PASSAGE OPENINGS FORMED THEREIN, STACKED TOGETHER IN ALTERNATE SUPERIMPOSED RELATION AND BRAZED TOGETHER AS A UNIT WITH THE CENTRAL THROAT PASSAGE OPENINGS IN ALIGNED RELATION AND THE COOLANT OPENINGS THEREIN IN ALIGNED RELATION.
Claim 2
Dependent Claim
95 words
A HIGH FLUID PRESSURE AND HIGH TEMPERATURE LAMINATED THROAT NOZZLE CONSTRUCTION HAVING A CONSTRICTED AXIAL THROAT PASSAGE AND A PLURALITY OF ANNULARLY SPACED SURROUNDING COOLANT CIRCULATING PASSAGES DISPOSED IN PREDETERMINED SPACED RELATION AROUND SAID AXIAL THROAT PASSAGE COMPRISING, A MULTITUDE OF INDIVIDUALLY FORMED DISCS OF AT LEAST TWO DIFFERENT METALLIC SHEET MATERIALS, EACH DISC HAVING A CENTRAL THROAT OPENING AND SURROUNDING COOLANT PASSAGE OPENINGS FORMED THEREIN, STACKED TOGETHER IN ALTERNATE SUPERIMPOSED RELATION AND BRAZED TOGETHER AS A UNIT WITH THE CENTRAL THROAT PASSAGE OPENINGS IN ALIGNED RELATION AND THE COOLANT OPENINGS THEREIN IN ALIGNED RELATION.
References Cited (Backward Citations)
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Cited
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Cited
US3137998A
Cited
US3157026A
Cited
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US3313488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |