US3314650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled blade
Assignee: Motors Liquidation Co
•
Filing: 1965-07-20
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Granted: 1967-04-18
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Expires: 1985-07-20
Abstract
No abstract record available.
Inventors
- 👤 Signe M Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:05
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188; F01D5/189; F01D5/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A BLADE USED IN A TURBOMACHINERY AND SUBJECTED TO HOT GASES, THE COMBINATION COMPRISING: A BLADE ROOT HAVING A CAVITY, SAID CAVITY HAVING INLET AND OUTLET MEANS, AN AIRFOIL SHEATH EXTENDING FROM SAID ROOT AND TERMINATING IN A TIP, A CYLINDER DISPOSED IN SAID AIRFOIL SHEATH EXTENDING FROM SAID OUTLET MEANS TO SAID TIP TO FORM A CLOSED CHAMBER BETWEEN SAID CYLINDER AND SUBSTANTIALLY THE ENTIRE INNER PERIPHERY OF SAID SHEATH, SECOND OUTLET MEANS IN SAID AIRFOIL IN COMMUNICATION WITH THE INSIDE OF SAID CYLINDER WHEREBY A PATH IS PROVIDED FROM SAID INLET MEANS TO SAID SECOND OUTLET MEANS THROUGH SAID CAVITY AND SAID CYLINDER FOR THE FLOW OF A FIRST HEAT EXCHANGE MEDIUM, AND A SECOND HEAT EXCHANGE MEDIUM IN SAID CHAMBER WHEREBY HEAT IS TRANSFERRED FROM SAID AIRFOIL TO SAID
Claim 2
Dependent Claim
133 words
IN A BLADE USED IN A TURBOMACHINERY AND SUBJECTED TO HOT GASES, THE COMBINATION COMPRISING: A BLADE ROOT HAVING A CAVITY, SAID CAVITY HAVING INLET AND OUTLET MEANS, AN AIRFOIL SHEATH EXTENDING FROM SAID ROOT AND TERMINATING IN A TIP, A CYLINDER DISPOSED IN SAID AIRFOIL SHEATH EXTENDING FROM SAID OUTLET MEANS TO SAID TIP TO FORM A CLOSED CHAMBER BETWEEN SAID CYLINDER AND SUBSTANTIALLY THE ENTIRE INNER PERIPHERY OF SAID SHEATH, SECOND OUTLET MEANS IN SAID AIRFOIL IN COMMUNICATION WITH THE INSIDE OF SAID CYLINDER WHEREBY A PATH IS PROVIDED FROM SAID INLET MEANS TO SAID SECOND OUTLET MEANS THROUGH SAID CAVITY AND SAID CYLINDER FOR THE FLOW OF A FIRST HEAT EXCHANGE MEDIUM, AND A SECOND HEAT EXCHANGE MEDIUM IN SAID CHAMBER WHEREBY HEAT IS TRANSFERRED FROM SAID AIRFOIL TO SAID
References Cited (Backward Citations)
GB610737A
Cited
US2699917A
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US2501038A
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US2648520A
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US2650803A
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US3164367A
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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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |