US3249780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. motor with permanent magnet stator
Assignee: Vernitron Corp
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Filing: 1965-05-13
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Granted: 1966-05-03
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Faik K Ibrahim
- 👤 Santogrossi Dominic
- 👤 Nocito Bernabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A D.C. MOTOR OF THE TYPE HAVING A STATOR AND AN ARMATURE ADAPTED TO ROTATE WITHIN SAID STATOR, SAID STATOR COMPRISING A CONTINUOUS RING OF HIGH SATURATION FLUX DENSITY MAGNETIC MATERIAL, A PLURALITY OF THREE SIDED SLOTS FORMED WITHIN SAID RING, FLAT PERMANENT MAGNETS SHAPED TO FIT IN EACH OF SAID SLOTS, MEANS FOR MAGNETICALLY INSULATING A PORTION OF EACH MAGNET FROM A PORTION OF ADJACENT MAGNETS, EACH OF SAID MAGNETS BEING POLARIZED IN A RADIAL DIRECTION AND ACROSS THE MININUM DIMENSION OF EACH MAGNET WHEREBY EACH MAGNET IS MAGNETICALLY LINKED TO EACH ADJACENT MAGNET BY AT LEAST TWO PATHS.
Claim 2
Dependent Claim
100 words
A D.C. MOTOR OF THE TYPE HAVING A STATOR AND AN ARMATURE ADAPTED TO ROTATE WITHIN SAID STATOR, SAID STATOR COMPRISING A CONTINUOUS RING OF HIGH SATURATION FLUX DENSITY MAGNETIC MATERIAL, A PLURALITY OF THREE SIDED SLOTS FORMED WITHIN SAID RING, FLAT PERMANENT MAGNETS SHAPED TO FIT IN EACH OF SAID SLOTS, MEANS FOR MAGNETICALLY INSULATING A PORTION OF EACH MAGNET FROM A PORTION OF ADJACENT MAGNETS, EACH OF SAID MAGNETS BEING POLARIZED IN A RADIAL DIRECTION AND ACROSS THE MININUM DIMENSION OF EACH MAGNET WHEREBY EACH MAGNET IS MAGNETICALLY LINKED TO EACH ADJACENT MAGNET BY AT LEAST TWO PATHS.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |