Patent US3189773A successfully refreshed from Google Patents.
US3189773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial airgap electric rotary device
Assignee: Printed Motors Inc
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Filing: 1961-03-03
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Granted: 1965-06-15
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
- 👤 Henry-Baudot Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:32
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A ROTARY ELECTRIC MACHINE COMPRISING, IN COMBINATION, A HOLLOW CYLINDRICAL MEMBER, MEANS MOUNTING SAID MEMBER FOR ROTATION ABOUT ITS CYLINDRICAL AXIS, A FLAT DISCTYPE ARMATURE MOUNTED WITHIN SAID MEMBER WITH ITS PLANE NORMAL TO THE AXIS OF SAID MEMBER AND HAVING A CENTRAL OPENING THEREIN, AN ANNULAR WINDING CARRIED BY SAID ARMATURE BETWEEN ITS INNER AND OUTER PERIPHERIES, MEANS ATTACHING THE OUTER PERIPHERY OF SAID ARMATURE TO SAID CYLINDRICAL MEMBER, AN ANNULAR FIELD STRUCTURE LOCATED WITHIN SAID CYLINDRICAL MEMBER AND MOUNTED UPON A FIXED SUPPORT CO-AXIALLY WITH SAID CYLINDRICAL MEMBER, SAID FIELD STRUCTURE COMPRISING TWO ANNULAR PORTIONS POSITIONED ON OPPOSITE SIDES OF THE WINDING OF SAID ARMATURE WITH A SMALL CLEARANCE BETWEEN EACH ANNULAR PORTION AND SAID ARMATURE.
Claim 2
Dependent Claim
118 words
A ROTARY ELECTRIC MACHINE COMPRISING, IN COMBINATION, A HOLLOW CYLINDRICAL MEMBER, MEANS MOUNTING SAID MEMBER FOR ROTATION ABOUT ITS CYLINDRICAL AXIS, A FLAT DISCTYPE ARMATURE MOUNTED WITHIN SAID MEMBER WITH ITS PLANE NORMAL TO THE AXIS OF SAID MEMBER AND HAVING A CENTRAL OPENING THEREIN, AN ANNULAR WINDING CARRIED BY SAID ARMATURE BETWEEN ITS INNER AND OUTER PERIPHERIES, MEANS ATTACHING THE OUTER PERIPHERY OF SAID ARMATURE TO SAID CYLINDRICAL MEMBER, AN ANNULAR FIELD STRUCTURE LOCATED WITHIN SAID CYLINDRICAL MEMBER AND MOUNTED UPON A FIXED SUPPORT CO-AXIALLY WITH SAID CYLINDRICAL MEMBER, SAID FIELD STRUCTURE COMPRISING TWO ANNULAR PORTIONS POSITIONED ON OPPOSITE SIDES OF THE WINDING OF SAID ARMATURE WITH A SMALL CLEARANCE BETWEEN EACH ANNULAR PORTION AND SAID ARMATURE.
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |