US3736450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unipolar double inductor dynamo
Assignee: Individual
•
Filing: 1971-11-17
•
Granted: 1973-05-29
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Expires: 1991-11-17
Abstract
Abstract A unipolar double inductor dynamo having an anti-inductor winding for eliminating the axial flux produced by the inductor windings in an armature or stator by generating a high antiinductor flux and consequently a high saturation in the magnetic circuit of the anti-inductor, the inductor and anti-inductor rotating in opposite directions.
Inventors
- 👤 R Emaldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:19
CPC Classifications
H; H02; H02K; H02K31/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A unipolar dynamo comprising a rotatably mounted shaft, an inductor secured to said shaft for rotation therewith and having an outer peripheral face extending along and surrounding said shaft, an anti-inductor having an inner face spaced from and peripherally surrounding said inductor outer peripheral face, a first plurality of inductor windings in at least a portion of said outer peripheral face of said inductor and extending circumferentially thereabout, a second plurality of anti-inductor windings in at least a portion of said inner peripheral face of said anti-inductor and extending circumferentially thereabout, and an armature between said first and second plurality of wires and being carried by said inner face of said anti-inductor spaced from said inductor outer face.
Claim 2
Dependent Claim
118 words
A unipolar dynamo comprising a rotatably mounted shaft, an inductor secured to said shaft for rotation therewith and having an outer peripheral face extending along and surrounding said shaft, an anti-inductor having an inner face spaced from and peripherally surrounding said inductor outer peripheral face, a first plurality of inductor windings in at least a portion of said outer peripheral face of said inductor and extending circumferentially thereabout, a second plurality of anti-inductor windings in at least a portion of said inner peripheral face of said anti-inductor and extending circumferentially thereabout, and an armature between said first and second plurality of wires and being carried by said inner face of said anti-inductor spaced from said inductor outer face.
Claim 3
Dependent Claim
32 words
A dynamo according to claim 1, wherein said first and second plurality of windings have substantially equal overall axial extent and being disposed in relation to one another in substantial radial alignment.
Claim 4
Dependent Claim
16 words
A dynamo according to claim 2, wherein said inductor and anti-inductor are rotated in opposite directions.
References Cited (Backward Citations)
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Cited
US1916256A
Cited
GB793854A
Cited
US2914688A
Cited
US3017562A
Cited
FR1256238A
Cited
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US3293470A
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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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |