Patent US3372293A successfully refreshed from Google Patents.
US3372293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discoidal electric rotary machines
Assignee: Societe dElectronique et dAutomatisme SA
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Filing: 1964-07-27
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Granted: 1968-03-05
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Henry-Baudot Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:11
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A LOW VOLTAGE HIGH DIRECT CURRENT DYNAMO-ELECTRIC MACHINE OF THE DISC ROTOR TYPE COMPRISING IN COMBINATION: A STATOR INCLUDING AN HETEROPOLAR FIELD STRUCTURE OF PERMANENT MAGNET POLES AND DEFINING A MAGNETIC AIRGAP WHEREIN THE ORIENTATION OF THE MAGNETIC FIELD REGULARLY REVERSES IN SUCCESSIVE ZONES; A DISC SHAPED ROTOR ROTATABLY MOUNTED WITHIN SAID AIRGAP, SAID ROTOR COMPRISING A PLURALITY OF CONDUCTOR BLADES ARRANGED IN AT LEAST ONE LAYER WITH THEIR GREATER DIMENSIONS SUBSTANTIALLY ORIENTED ALONG THE GREATER DIRECTION OF THE AIRGAP, SAID BLADES BEING AT LEAST PARTLY BARE ON ONE OF THEIR FACES NEAR AT LEAST ONE END
Claim 2
Dependent Claim
97 words
A LOW VOLTAGE HIGH DIRECT CURRENT DYNAMO-ELECTRIC MACHINE OF THE DISC ROTOR TYPE COMPRISING IN COMBINATION: A STATOR INCLUDING AN HETEROPOLAR FIELD STRUCTURE OF PERMANENT MAGNET POLES AND DEFINING A MAGNETIC AIRGAP WHEREIN THE ORIENTATION OF THE MAGNETIC FIELD REGULARLY REVERSES IN SUCCESSIVE ZONES; A DISC SHAPED ROTOR ROTATABLY MOUNTED WITHIN SAID AIRGAP, SAID ROTOR COMPRISING A PLURALITY OF CONDUCTOR BLADES ARRANGED IN AT LEAST ONE LAYER WITH THEIR GREATER DIMENSIONS SUBSTANTIALLY ORIENTED ALONG THE GREATER DIRECTION OF THE AIRGAP, SAID BLADES BEING AT LEAST PARTLY BARE ON ONE OF THEIR FACES NEAR AT LEAST ONE END
References Cited (Backward Citations)
US2970238A
Cited
US3084420A
Cited
FR1272083A
Cited
US3263143A
Cited
US3209187A
Cited
FR1330344A
Cited
FR1328677A
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FR1341581A
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FR1341582A
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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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |