Patent US3398527A successfully refreshed from Google Patents.
US3398527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated wall radiation cooled combustion chamber
Assignee: United States Department of the Air Force
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Filing: 1966-05-31
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Granted: 1968-08-27
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Taylor
- 👤 Richard M Dumke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:39
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A RADIATION COOLED COMBUSTION CHAMBER, COMPRISING: A HOLLOW ELONGATED ENCLOSURE MEMBER HAVING A PLURALITY OF LONGITUDINALLY EXTENDING CORRUGATIONS FORMED THEREIN; A PLURALITY OF SPACED ANGULAR TENSION REACTING MEMBERS SURROUNDING SAID ENCLOSURE MEMBER; A PLURALITY OF U-SHAPED STIFFENER MEMBERS EXTENDING BETWEEN SAID CORRUGATED ENCLOSURE MEMBER AND SAID ANNULAR TENSION REACTING MEMBERS WITH THE CLOSED END OF SAID U-SHAPED STIFFENER MEMBERS BEING LOCATED IN CONTACT WITH THE EXTERNAL CONCAVE PORTION OF THE CORRUGATIONS OF SAID ENCLOSURE MEMBER.
Claim 2
Dependent Claim
75 words
A RADIATION COOLED COMBUSTION CHAMBER, COMPRISING: A HOLLOW ELONGATED ENCLOSURE MEMBER HAVING A PLURALITY OF LONGITUDINALLY EXTENDING CORRUGATIONS FORMED THEREIN; A PLURALITY OF SPACED ANGULAR TENSION REACTING MEMBERS SURROUNDING SAID ENCLOSURE MEMBER; A PLURALITY OF U-SHAPED STIFFENER MEMBERS EXTENDING BETWEEN SAID CORRUGATED ENCLOSURE MEMBER AND SAID ANNULAR TENSION REACTING MEMBERS WITH THE CLOSED END OF SAID U-SHAPED STIFFENER MEMBERS BEING LOCATED IN CONTACT WITH THE EXTERNAL CONCAVE PORTION OF THE CORRUGATIONS OF SAID ENCLOSURE MEMBER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |