US3218494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current generator
Assignee: General Electric Co
•
Filing: 1963-01-03
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Granted: 1965-11-16
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Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 John E Bacon
- 👤 Richard G Jewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:18
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/12; H02K21/14; H02K21/145; H02K2201/00; H02K2201/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ALTERNATING CURRENT GENERATOR COMPRISING A ROTOR OF MAGNETIC MATERIAL HAVING TWO SETS OF SPACED, STAGGERED TEETH AND A CIRCULAR PERMANENT MAGNET ADJACENT EACH END OF THE ROTOR WITH LIKE POLES ADJACENT THE ROTOR TEETH, STATOR STRUCTURE OF MAGNETIC MATERIAL COMPRISING TWO AXIALLY SPACED ANNULAR POLE PIECES, ONE OF THE POLE PIECES SURROUNDING EACH ROTOR MAGNET AND LYING ADJACENT ONE OF THE POLES THEREOF, AND A PLURALITY OF STATOR BARS EXTENDING BETWEEN THE POLE PIECES AND DISPOSED AROUND THE PERIPHERY OF THE POLE PIECES, EACH STATOR BAR HAVING A PAIR OF AXIALLY ALIGNED, SPACED TEETH, THE NUMBER OF STATOR BARS CORRESPONDING TO THE NUMBER OF TEETH ON EACH SET OF ROTOR TEETH AND EACH SET OF PERIPHERALLY DISPOSED STATOR TEETH LYING RADIALLY OPPOSITE AND CORRESPONDING TO EACH SET OF ROTOR TEETH, AND AN OUTPUT WINDING SURROUNDING THE ROTOR AND DISPOSED BETWEEN THE TWO SETS OF STATOR TEETH.
Claim 2
Dependent Claim
147 words
AN ALTERNATING CURRENT GENERATOR COMPRISING A ROTOR OF MAGNETIC MATERIAL HAVING TWO SETS OF SPACED, STAGGERED TEETH AND A CIRCULAR PERMANENT MAGNET ADJACENT EACH END OF THE ROTOR WITH LIKE POLES ADJACENT THE ROTOR TEETH, STATOR STRUCTURE OF MAGNETIC MATERIAL COMPRISING TWO AXIALLY SPACED ANNULAR POLE PIECES, ONE OF THE POLE PIECES SURROUNDING EACH ROTOR MAGNET AND LYING ADJACENT ONE OF THE POLES THEREOF, AND A PLURALITY OF STATOR BARS EXTENDING BETWEEN THE POLE PIECES AND DISPOSED AROUND THE PERIPHERY OF THE POLE PIECES, EACH STATOR BAR HAVING A PAIR OF AXIALLY ALIGNED, SPACED TEETH, THE NUMBER OF STATOR BARS CORRESPONDING TO THE NUMBER OF TEETH ON EACH SET OF ROTOR TEETH AND EACH SET OF PERIPHERALLY DISPOSED STATOR TEETH LYING RADIALLY OPPOSITE AND CORRESPONDING TO EACH SET OF ROTOR TEETH, AND AN OUTPUT WINDING SURROUNDING THE ROTOR AND DISPOSED BETWEEN THE TWO SETS OF STATOR TEETH.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |