US3116429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling arrangement for the stator teeth of a dynamoelectric machine
Assignee: General Electric Co
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Filing: 1962-04-02
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Granted: 1963-12-31
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Dean B Harrington
- 👤 Peter A Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:19
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A DYNAMOELECTRIC MACHINE, THE COMBINATION OF: A PLURALITY OF LAMINATIONS DEFINING A SLOTTED STATOR CORE HAVING RADIALLY EXTENDING TEETH, SAID LAMINATIONS BEING GROUPED IN AXIALLY SPACED PACKAGES DEFINING RADIAL COOLING DUCTS THEREBETWEEN, A ROTOR DEFINING AN AIR GAP WITH SAID CORE, MEANS SUPPLYING COOLING GAS TO SAID RADIAL DUCTS FROM SAID AIR GAP AND FROM THE END OF SAID STATOR CORE, MEANS SUBSTANTIALLY BLOCKING THE RADIAL FLOW OF GAS INTO SELECTED RADIAL DUCTS DISPOSED BETWEEN THE LAST TWO PACKAGES OF LAMINATIONS AT THE END OF SAID STATOR CORE, SAID LAMINATIONS IN THE END LAMINATION PACKAGE TOGETHER DEFINING A PLURALITY OF AXIAL FLOW PASSAGES IN THE STATOR TEETH WHICH CONNECT SAID SELECTED RADIAL DUCTS WITH THE END OF THE STATOR CORE, WHEREBY GAS FLOWING THROUGH THE AXIAL PASSAGES IN THE END LAMINATION PACKAGE IN CONTACT WITH THE LAMINATIONS PROVIDES ADDITIONAL COOLING FOR THE END LAMINATION PACKAGE.
Claim 2
Dependent Claim
146 words
IN A DYNAMOELECTRIC MACHINE, THE COMBINATION OF: A PLURALITY OF LAMINATIONS DEFINING A SLOTTED STATOR CORE HAVING RADIALLY EXTENDING TEETH, SAID LAMINATIONS BEING GROUPED IN AXIALLY SPACED PACKAGES DEFINING RADIAL COOLING DUCTS THEREBETWEEN, A ROTOR DEFINING AN AIR GAP WITH SAID CORE, MEANS SUPPLYING COOLING GAS TO SAID RADIAL DUCTS FROM SAID AIR GAP AND FROM THE END OF SAID STATOR CORE, MEANS SUBSTANTIALLY BLOCKING THE RADIAL FLOW OF GAS INTO SELECTED RADIAL DUCTS DISPOSED BETWEEN THE LAST TWO PACKAGES OF LAMINATIONS AT THE END OF SAID STATOR CORE, SAID LAMINATIONS IN THE END LAMINATION PACKAGE TOGETHER DEFINING A PLURALITY OF AXIAL FLOW PASSAGES IN THE STATOR TEETH WHICH CONNECT SAID SELECTED RADIAL DUCTS WITH THE END OF THE STATOR CORE, WHEREBY GAS FLOWING THROUGH THE AXIAL PASSAGES IN THE END LAMINATION PACKAGE IN CONTACT WITH THE LAMINATIONS PROVIDES ADDITIONAL COOLING FOR THE END LAMINATION PACKAGE.
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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |