US3368616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine recuperator
Assignee: Motors Liquidation Co
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Filing: 1966-04-01
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Granted: 1968-02-13
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Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 James H Adams
- 👤 Jr Paul E Beam
- 👤 Jr Esten W Spears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
F; F28; F28F; F28F7/00; F28F7/02; F28D; F28D7/00; F28D7/06; F28D21/00; F28D21/0001; F28D21/0003; F28D21/001; F28D7/16; F28D7/163; F28D7/1669; F28D7/1676; F28D7/1684; F28D7/1692; F28D2021/0019; F28D2021/0021; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/427; Y10S165/429; Y10S165/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
A RECUPERATOR FOR A GAS TURBINE ENGINE OR THE LIKE, COMPRISING, IN COMBINATION, A CYLINDRICAL HOUSING HAVING RADIALLY INWARDLY EXTENDING PORTIONS AT ITS FORWARD AND AFT ENDS FORMING AN INLET AND AN OUTLET, RESPECTIVELY, A FIRST SET OF RECUPERATOR MODULES DISPOSED IN SAID HOUSING ADJACENT SAID INLET, EACH OF SAID MODULES COMPRISING AN ARCUATE HEADER HAVING AN INLET CHAMBER AND AN OUTLET CHAMBER, A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY REARWARDLY EXTENDING U-TUBES HAVING ITS FREE ENDS IN COMMUNICATION WITH SAID INLET AND OUTLET CHAMBERS, RESPECTIVELY, INLET MEANS FOR SAID INLET CHAMBER, AND OUTLET MEANS FOR SAID OUTLET CHAMBER, SAID INLET AND OUTLET MEANS EXTENDING THROUGH SAID FORWARD PORTION OF SAID HOUSING WHEREBY SAID FIRST SET IS ADAPTED TO HAVE A FLUID FLOW THERETHROUGH, SAID MODULES BEING CIRCUMFERENTIALLY SPACED SO THAT SAID FIRST SET IS SOMEWHAT ANNULAR IN CROSS SECTION, AND RADIALLY SPACED FROM SAID HOUSING TO FORM A FIRST CENTRAL PASSAGE WITHIN SAID FIRST SET AND A FIRST ANNULAR PASSAGE BETWEEN SAID FIRST SET AND SAID HOUSING, A SECOND SET OF RECUPERATOR MODULES DISPOSED IN SAID HOUSING AXIALLY ADJACENT SAID FIRST SET, EACH OF SAID MODULES COMPRISING AN ARCUATE HEADER HAVING AN INLET CHAMBER AND AN OUTLET CHAMBER, A PLURALITY OF CIRCUMFERENTIALLY SPACED, AXIALLY REARWARDLY EXTENDING U-TUBES HAVING ITS ENDS IN COMMUNICATION WITH SAID INLET AND OUTLET CHAMBERS, RESPECTIVELY, INLET MEANS FOR SAID INLET CHAMBER AND OUTLET MEANS FOR SAID OUTLET CHAMBER, SAID INLET MEANS AND OUTLET MEANS EXTENDING THROUGH SAID FORWARD PORTION OF SAID HOUSING
Claim 2
Dependent Claim
246 words
A RECUPERATOR FOR A GAS TURBINE ENGINE OR THE LIKE, COMPRISING, IN COMBINATION, A CYLINDRICAL HOUSING HAVING RADIALLY INWARDLY EXTENDING PORTIONS AT ITS FORWARD AND AFT ENDS FORMING AN INLET AND AN OUTLET, RESPECTIVELY, A FIRST SET OF RECUPERATOR MODULES DISPOSED IN SAID HOUSING ADJACENT SAID INLET, EACH OF SAID MODULES COMPRISING AN ARCUATE HEADER HAVING AN INLET CHAMBER AND AN OUTLET CHAMBER, A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY REARWARDLY EXTENDING U-TUBES HAVING ITS FREE ENDS IN COMMUNICATION WITH SAID INLET AND OUTLET CHAMBERS, RESPECTIVELY, INLET MEANS FOR SAID INLET CHAMBER, AND OUTLET MEANS FOR SAID OUTLET CHAMBER, SAID INLET AND OUTLET MEANS EXTENDING THROUGH SAID FORWARD PORTION OF SAID HOUSING WHEREBY SAID FIRST SET IS ADAPTED TO HAVE A FLUID FLOW THERETHROUGH, SAID MODULES BEING CIRCUMFERENTIALLY SPACED SO THAT SAID FIRST SET IS SOMEWHAT ANNULAR IN CROSS SECTION, AND RADIALLY SPACED FROM SAID HOUSING TO FORM A FIRST CENTRAL PASSAGE WITHIN SAID FIRST SET AND A FIRST ANNULAR PASSAGE BETWEEN SAID FIRST SET AND SAID HOUSING, A SECOND SET OF RECUPERATOR MODULES DISPOSED IN SAID HOUSING AXIALLY ADJACENT SAID FIRST SET, EACH OF SAID MODULES COMPRISING AN ARCUATE HEADER HAVING AN INLET CHAMBER AND AN OUTLET CHAMBER, A PLURALITY OF CIRCUMFERENTIALLY SPACED, AXIALLY REARWARDLY EXTENDING U-TUBES HAVING ITS ENDS IN COMMUNICATION WITH SAID INLET AND OUTLET CHAMBERS, RESPECTIVELY, INLET MEANS FOR SAID INLET CHAMBER AND OUTLET MEANS FOR SAID OUTLET CHAMBER, SAID INLET MEANS AND OUTLET MEANS EXTENDING THROUGH SAID FORWARD PORTION OF SAID HOUSING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |