US3191081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet miniature motor
Assignee: Individual
•
Filing: 1961-04-13
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Granted: 1965-06-22
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Expires: 1981-04-13
Abstract
No abstract record available.
Inventors
- 👤 Faulhaber Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:12
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A MINIATURE MOTOR COMPRISING A STATIONARY ANNULAR OUTER IRON YOKE, A STATIONARY MAGNET COAXIALLY LOCATED WITHIN SAID YOKE AND FORMING AN ANNULAR FIELD GAS TOGETHER THEREWITH, A ROTOR COMPRISING A HOLLOW CYLINDRICAL ARMATURE COAXIALLY LOCATED IN SAID GAP, SAID ARMATURE HAVING A WINDING OF SEQUENTIAL CYLINDRICALLY AND HELICALLY WOUND WIRE TURNS AROUND, AND RESTRICTED TO, THE PERIPHERY OF THE ARMATURE, EACH WINDING TURN EXTENDING IN SKEWED RELATION TO THE ROTOR AXIS FROM ONE AXIAL SIDE OF THE ARMATURE TO THE OTHER ALONG A PORTION OF THE PERIPHERY SUSBTANTIALLY EQUAL TO THE PERIPHERAL SPACING BETWEEN EACH TWO SEQAUENTIAL NORTH-SOUTH FIELD POLES OF SAID MAGNET, SAID WINDING HAVING PERIPHERALLY DISTRIBUTED TAPS, AND A COMMUTATOR HAVING MUTUALLY INSULATED SEQUENTIAL SEGMENTS INDIVIDUALLY ELECTRICALLY CONNECTED TO SAID TAPS.
Claim 2
Dependent Claim
123 words
A MINIATURE MOTOR COMPRISING A STATIONARY ANNULAR OUTER IRON YOKE, A STATIONARY MAGNET COAXIALLY LOCATED WITHIN SAID YOKE AND FORMING AN ANNULAR FIELD GAS TOGETHER THEREWITH, A ROTOR COMPRISING A HOLLOW CYLINDRICAL ARMATURE COAXIALLY LOCATED IN SAID GAP, SAID ARMATURE HAVING A WINDING OF SEQUENTIAL CYLINDRICALLY AND HELICALLY WOUND WIRE TURNS AROUND, AND RESTRICTED TO, THE PERIPHERY OF THE ARMATURE, EACH WINDING TURN EXTENDING IN SKEWED RELATION TO THE ROTOR AXIS FROM ONE AXIAL SIDE OF THE ARMATURE TO THE OTHER ALONG A PORTION OF THE PERIPHERY SUSBTANTIALLY EQUAL TO THE PERIPHERAL SPACING BETWEEN EACH TWO SEQAUENTIAL NORTH-SOUTH FIELD POLES OF SAID MAGNET, SAID WINDING HAVING PERIPHERALLY DISTRIBUTED TAPS, AND A COMMUTATOR HAVING MUTUALLY INSULATED SEQUENTIAL SEGMENTS INDIVIDUALLY ELECTRICALLY CONNECTED TO SAID TAPS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |