US3348084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graded concentric winding dynamoelectric machine
Assignee: Reliance Electric and Engineering Co
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Filing: 1965-06-24
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Granted: 1967-10-17
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Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Howard E Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:42
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A POLYPHASE DYNAMOELECTRIC MACHINE HAVING P POLES INCLUDING A CORE HAVING S SLOTS AND TEETH BETWEEN SAID SLOTS, AND A GRADED WINDING ON SAID CORE IN SAID SLOTS COMPOSED OF M PHASE WINDINGS EQUAL TO THE NUMBER OF PHASES AND FORMED INTO COILS ARRANGED IN LIKE GROUPS OF CONCENTRIC COILS PROVIDING MP PHASE POLE GROUPS OF U COILS EACH, WHERE U IS AN INTEGER NOT LOWER THAN THREE AND IS EQUAL TO THE SLOTS S PER PHASE M PER POLE P, AND EACH SAID PHASE POLE GROUP OF U COILS HAVING THE WINDING TURNS DISTRIBUTED SO THAT FOR A GIVEN TOTAL EFFECTIVE CONDUCTORS PER PHASE CKW, THE FOLLOWING EQUATIONS ARE SUBSTANTIALLY SATISFIED:
Claim 2
Dependent Claim
112 words
A POLYPHASE DYNAMOELECTRIC MACHINE HAVING P POLES INCLUDING A CORE HAVING S SLOTS AND TEETH BETWEEN SAID SLOTS, AND A GRADED WINDING ON SAID CORE IN SAID SLOTS COMPOSED OF M PHASE WINDINGS EQUAL TO THE NUMBER OF PHASES AND FORMED INTO COILS ARRANGED IN LIKE GROUPS OF CONCENTRIC COILS PROVIDING MP PHASE POLE GROUPS OF U COILS EACH, WHERE U IS AN INTEGER NOT LOWER THAN THREE AND IS EQUAL TO THE SLOTS S PER PHASE M PER POLE P, AND EACH SAID PHASE POLE GROUP OF U COILS HAVING THE WINDING TURNS DISTRIBUTED SO THAT FOR A GIVEN TOTAL EFFECTIVE CONDUCTORS PER PHASE CKW, THE FOLLOWING EQUATIONS ARE SUBSTANTIALLY SATISFIED:
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |