US3234419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast rotor for a dynamoelectric machine
Assignee: General Electric Co
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Filing: 1962-01-15
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Granted: 1966-02-08
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Picozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:57
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K17/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A SQUIRREL CAGE ROTOR COMPRISING A SHAFT HAVING AN ENLARGED PORTION INTERMEDIATE ITS LENGTH OF GREATER DIAMETER THAN THE REMAINDER OF THE SHAFT,A MAGNETIC CORE HAVING AN AXIAL LENGTH GREATER THAN SAID ENLARGED PORTION AND INCLUDING A CAST WINDING AND END RINGS, A CENTRAL BORE IN SAID CORE OF A DIAMETER APPROXIMATELY THE SAME AS THE DIAMETER OF SAID ENLARGED PORTION ON THE SHAFT, SAID COREBEING MOUNTED ON SAID ENLARGED PORTION SO THAT WHEN THE WINDINGS AND END RINGS EXPAND UNDER THE INFLUENCE OF HEAT THOSE PORTIONS OF THE CORE NOT SUPPORTED BY THE ENLARGED PORTION ARE PERMITTED TO DEFLECT INWARDLY TOWARD THE SHAFT FOR MINIMIZING THE ESTABLISHMENT OF VIBRATIONS THEREIN.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |