Patent GB508350A successfully refreshed from Google Patents.
US3153737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bipolar electric motor
Assignee: Individual
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Filing: 1962-08-29
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Granted: 1964-10-20
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Expires: 1982-08-29
Abstract
No abstract record available.
Inventors
- 👤 Ahmet K Bey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:16
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/17; H02K23/00; H02K23/02; H02K23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
IN A MULTIPOLAR DIRECT CURRENT MOTOR OF THE CHARACTER DESCRIBED, IN COMBINATION, A CYLINDRICAL PERMANENT MAGNET PRESENTING A FORWARDLY FACING CIRCULAR END FACE AND HAVING A CYLINDRICAL OUTER SURFACE, SAID MAGNET BEING MAGNETIZED IN A TRANSVERSE DIRECTION TO PRODUCE POLE FACE AREAS ON SAID OUTER SURFACE, A PLURALITY OF POLE PIECES FORMED OF MAGNETIC MATERIAL AND SECURED TO SAID MAGNET AT THEIR REAR END REGIONS, EACH POLE PIECE OVERLAPPING A POLE FACE AREA AND PROJECTING FORWARDLY OF SAID END FACE SO AS TO PRODUCE A CAGE-LIKE STRUCTURE IMMEDIATELY FORWARDLY OF THE MAGNET, A BRUSH HOLDER OF NONMAGNETIC MATERIAL SUPPORTED FROM THE FORWARD ENDS OF SAID POLE PIECES AND SPACED FORWARDLY FROM SAID MAGNET, AN ARMATURE ROTATABLE WITHIN SAID CAGE-LIKE STRUCTURE AND INCLUDING AN ARMATURE SHAFT HAVING ITS REAR END PIVOTALLY MOUNTED ADJACENT TO THE INNER END OF THE MAGNET AND ITS FORWARD END ROTATABLY JOURNALLED IN SAID BRUSH HOLDER, SAID BRUSH HOLDER BEING PROVIDED WITH RADIALLY EXTENDING BRUSH GUIDES, A COMMUTATOR ON SAID ARMATURE SHAFT IN REGISTER WITH SAID BRUSH GUIDES, AND BRUSHES DISPOSED WITHIN SAID BRUSH GUIDES AND CONNECTED ELECTRICALLY TO THE POLE PIECES RESPECTIVELY.
Claim 2
Dependent Claim
186 words
IN A MULTIPOLAR DIRECT CURRENT MOTOR OF THE CHARACTER DESCRIBED, IN COMBINATION, A CYLINDRICAL PERMANENT MAGNET PRESENTING A FORWARDLY FACING CIRCULAR END FACE AND HAVING A CYLINDRICAL OUTER SURFACE, SAID MAGNET BEING MAGNETIZED IN A TRANSVERSE DIRECTION TO PRODUCE POLE FACE AREAS ON SAID OUTER SURFACE, A PLURALITY OF POLE PIECES FORMED OF MAGNETIC MATERIAL AND SECURED TO SAID MAGNET AT THEIR REAR END REGIONS, EACH POLE PIECE OVERLAPPING A POLE FACE AREA AND PROJECTING FORWARDLY OF SAID END FACE SO AS TO PRODUCE A CAGE-LIKE STRUCTURE IMMEDIATELY FORWARDLY OF THE MAGNET, A BRUSH HOLDER OF NONMAGNETIC MATERIAL SUPPORTED FROM THE FORWARD ENDS OF SAID POLE PIECES AND SPACED FORWARDLY FROM SAID MAGNET, AN ARMATURE ROTATABLE WITHIN SAID CAGE-LIKE STRUCTURE AND INCLUDING AN ARMATURE SHAFT HAVING ITS REAR END PIVOTALLY MOUNTED ADJACENT TO THE INNER END OF THE MAGNET AND ITS FORWARD END ROTATABLY JOURNALLED IN SAID BRUSH HOLDER, SAID BRUSH HOLDER BEING PROVIDED WITH RADIALLY EXTENDING BRUSH GUIDES, A COMMUTATOR ON SAID ARMATURE SHAFT IN REGISTER WITH SAID BRUSH GUIDES, AND BRUSHES DISPOSED WITHIN SAID BRUSH GUIDES AND CONNECTED ELECTRICALLY TO THE POLE PIECES RESPECTIVELY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |