Patent US3389281A successfully refreshed from Google Patents.
US3389281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for inductor alternator
Assignee: Lear Siegler Inc
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Filing: 1965-08-23
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Granted: 1968-06-18
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 James N Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/18; H02K19/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN AN INDUCTOR ALTERNATOR THE COMBINATION COMPRISING: A HOUSING; STATOR MEANS IN SAID HOUSING INCLUDING AT LEAST TWO SETS OF LAMINATIONS AND A PLURALITY OF STATOR WINDINGS EACH COUPLED TO AT LEAST ONE SET OF SAID LAMINATIONS; AND ROTOR MEANS ROTATABLY MOUNTED IN SAID HOUSING INCLUDING A SHAFT AND AN ARMATURE ON SAID SHAFT HAVING A LONGITUDINALLY CENTRAL SECTION, AT LEAST TWO GROUPS OF POLES ON SAID SHAFT, ONE ON EACH SIDE OF SAID CENTRAL SECTION, EACH GROUP INCLUDING A PLURALITY OF POLES EQUALLY CIRCUMFERENTIALLY SPACED RELATIVE TO THE ARMATURE AXIS AND TAPERED SECTIONS BETWEEN ADJACENT POLES OF EACH GROUP, EACH OF SAID TAPERED SECTIONS TAPERING FROM THE EDGE OF SAID CYLINDRICAL SECTION TOWARD THE ARMATURE AXIS.
Claim 2
Dependent Claim
117 words
IN AN INDUCTOR ALTERNATOR THE COMBINATION COMPRISING: A HOUSING; STATOR MEANS IN SAID HOUSING INCLUDING AT LEAST TWO SETS OF LAMINATIONS AND A PLURALITY OF STATOR WINDINGS EACH COUPLED TO AT LEAST ONE SET OF SAID LAMINATIONS; AND ROTOR MEANS ROTATABLY MOUNTED IN SAID HOUSING INCLUDING A SHAFT AND AN ARMATURE ON SAID SHAFT HAVING A LONGITUDINALLY CENTRAL SECTION, AT LEAST TWO GROUPS OF POLES ON SAID SHAFT, ONE ON EACH SIDE OF SAID CENTRAL SECTION, EACH GROUP INCLUDING A PLURALITY OF POLES EQUALLY CIRCUMFERENTIALLY SPACED RELATIVE TO THE ARMATURE AXIS AND TAPERED SECTIONS BETWEEN ADJACENT POLES OF EACH GROUP, EACH OF SAID TAPERED SECTIONS TAPERING FROM THE EDGE OF SAID CYLINDRICAL SECTION TOWARD THE ARMATURE AXIS.
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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |