Patent US3254248A successfully refreshed from Google Patents.
US3254248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable pressure barrier backup means for a dynamoelectric machine
Assignee: Westinghouse Electric Corp
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Filing: 1962-12-14
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Granted: 1966-05-31
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Hagen Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:38
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A DYNAMOELECTRIC MACHINE, A HOLLOW HOUSING HAVA STATOR STRUCTURE MOUNTED THEREIN AND SHAPED TO DEFINE A CENTRAL ROTOR BORE AND AN ANNULAR STATOR BORE SURROUNDING SAID ROTOR BORE, A GENERALLY CYLINDRICAL ENCLOSURE MEAN DISPOSED IN SAID HOUSING AND SEPARATING SAID BORES, A GENERALLY ANNULAR BACKUP MEANS SURROUNDING AT LEAST A PORTION OF SAID ENCLOSURE MEANS INTERMEDIATE THE ENDS
Claim 2
Dependent Claim
59 words
IN A DYNAMOELECTRIC MACHINE, A HOLLOW HOUSING HAVA STATOR STRUCTURE MOUNTED THEREIN AND SHAPED TO DEFINE A CENTRAL ROTOR BORE AND AN ANNULAR STATOR BORE SURROUNDING SAID ROTOR BORE, A GENERALLY CYLINDRICAL ENCLOSURE MEAN DISPOSED IN SAID HOUSING AND SEPARATING SAID BORES, A GENERALLY ANNULAR BACKUP MEANS SURROUNDING AT LEAST A PORTION OF SAID ENCLOSURE MEANS INTERMEDIATE THE ENDS
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |