Patent US3229137A successfully refreshed from Google Patents.
US3229137A
Expired / Lapsed
US
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Induction machine rotor
Assignee: Aerojet Rocketdyne Inc
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Filing: 1962-12-03
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Granted: 1966-01-11
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Mccarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:33
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
A ROTOR DISC FOR MOUNTING ON THE SHAFT OF A DYNAMOELECTRIC MACHINE COMPRISING A PAIR OF STRIPS OF NONMAGNETIC ELECTRICALLY CONDUCTING METAL ROLLED IN A SPIRAL WITH A LENGTH OF WIRE OF MAGNETIC MATERIAL LOOPED BACK AND FORTH FORMING PARALLEL LENGTHS OF THE WIRE TRANSVERSELY ACROSS THE STRIPS WITH ADJACENT LENGTH CLOSE TO BUT NOT TOUCHING EACH OTHER, THE WIRE BEING EMBEDDED BETWEEN THE STRIPS, AND THE STRIPS AND WIRE BEING FUSED TOGETHER TO FORM A SOLID DISC.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |