Patent US3330977A successfully refreshed from Google Patents.
US3330977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine stators and method of making same
Assignee: General Electric Co
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Filing: 1965-06-28
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Granted: 1967-07-11
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Roy L Balke
- 👤 Robert S Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/48; H02K3/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A STATOR FOR A DYNAMOELECTRIC MACHINE COMPRISING: (A) A CORE OF MAGNETIC MATERIAL HAVING WINDING SLOTS THEREIN OPENING INTO THE BORE OF SAID STATOR; (B) ELECTRICAL COILS IN SAID SLOTS; (C) SLOT LINERS DISPOSED IN EACH OF SAID SLOTS AND ARRANGED TO PROVIDE AT LEAST PARTIALLY CLOSED TUBES SURROUNDING SAID COILS; AND (D) COIL RETAINING AND PROTECTING MEANS DISPOSED WITHIN SAID STATOR BORE AND INTIMATELY BONDED TO THE SURFACE THEREOF, SAID MEANS INCLUDING A HOOP OF NONCONDUCTIVE FIBERS BONDED INTO A RIGID, DENSE, HOMOGENEOUS MASS BY A HARDENED RESIN, AND BEING THE ONLY MEANS OF RETAINING SAID COILS IN SAID SLOTS.
Claim 2
Dependent Claim
101 words
A STATOR FOR A DYNAMOELECTRIC MACHINE COMPRISING: (A) A CORE OF MAGNETIC MATERIAL HAVING WINDING SLOTS THEREIN OPENING INTO THE BORE OF SAID STATOR; (B) ELECTRICAL COILS IN SAID SLOTS; (C) SLOT LINERS DISPOSED IN EACH OF SAID SLOTS AND ARRANGED TO PROVIDE AT LEAST PARTIALLY CLOSED TUBES SURROUNDING SAID COILS; AND (D) COIL RETAINING AND PROTECTING MEANS DISPOSED WITHIN SAID STATOR BORE AND INTIMATELY BONDED TO THE SURFACE THEREOF, SAID MEANS INCLUDING A HOOP OF NONCONDUCTIVE FIBERS BONDED INTO A RIGID, DENSE, HOMOGENEOUS MASS BY A HARDENED RESIN, AND BEING THE ONLY MEANS OF RETAINING SAID COILS IN SAID SLOTS.
References Cited (Backward Citations)
US3229131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |