Patent US3100271A successfully refreshed from Google Patents.
US3100271A
Expired / Lapsed
US
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Alternating current machine with magnetic shield enclosing end turns of stator winding
Assignee: BBC Brown Boveri AG Germany
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Filing: 1961-04-27
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Granted: 1963-08-06
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Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 Darrieus Georges
- 👤 Mullner Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:57
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN AN ALTERNATING CURRENT MACHINE THE COMBINATION COMPRISING A ROTOR ELEMENT AND A STATOR ELEMENT SURROUNDING SAID ROTOR ELEMENT, SAID STATOR AND ROTOR ELEMENTS BEING PROVIDED WITH COILS THEREON HAVING STRAIGHT CONDUCTOR PORTIONS EXTENDING AXIALLY OF THE MACHINE AND END TURNS PROJECTING BEYOND THE ENDS OF SAID STRAIGHT CONDUCTOR PORTIONS, THE END TURNS OF SAID STATOR ELEMENT AND OF SAID ROTOR ELEMENT BEING ARRANGED IN ESSENTIALLY CYLINDRICAL ARRAYS OF CONDUCTOR PORTIONS, A FIRST ESSENTIALLY CYLINDRICAL MAGNETIC SHIELD SURROUNDING SAID ESSENTIALLY CYLIN-
Claim 2
Dependent Claim
81 words
IN AN ALTERNATING CURRENT MACHINE THE COMBINATION COMPRISING A ROTOR ELEMENT AND A STATOR ELEMENT SURROUNDING SAID ROTOR ELEMENT, SAID STATOR AND ROTOR ELEMENTS BEING PROVIDED WITH COILS THEREON HAVING STRAIGHT CONDUCTOR PORTIONS EXTENDING AXIALLY OF THE MACHINE AND END TURNS PROJECTING BEYOND THE ENDS OF SAID STRAIGHT CONDUCTOR PORTIONS, THE END TURNS OF SAID STATOR ELEMENT AND OF SAID ROTOR ELEMENT BEING ARRANGED IN ESSENTIALLY CYLINDRICAL ARRAYS OF CONDUCTOR PORTIONS, A FIRST ESSENTIALLY CYLINDRICAL MAGNETIC SHIELD SURROUNDING SAID ESSENTIALLY CYLIN-
References Cited (Backward Citations)
US1689188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |