US3564705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for providing oriented pole pieces in a dynamoelectric machine
Assignee: Westinghouse Electric Corp
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Filing: 1967-12-07
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Granted: 1971-02-23
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Expires: 1987-12-07
Abstract
Abstract ORIENTED POLE PIECES ARE PROVIDED IN A PERMANENT MAGNET DYNAMOELECTRIC MACHINE BY INTRODUCING AT PERDETERMINED LOCATIONS IN THE MACHINE FRAME A HARDENABLE NONMAGNETIC MATRIX MATERIAL IN A FLUID CONDITION LOADED WITH FERROMAGNETIC PARTICLES, ESTABLISHING A MAGNETIC FIELD WITHIN THE FRAME TO ORIENT THE PARTICLES, AND THEN FIXING THE PARTICLES IN ORIENTED ALIGNMENT BY HARDENING THE FLUID MATRIX MATERIAL.
Inventors
- 👤 Alexander W Cochardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/03; H02K23/00; H02K23/02; H02K23/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49075; Y10T29/49076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |