US3132270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor annulus for electric generator
Assignee: RE Phelon Co Inc
•
Filing: 1959-09-29
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Granted: 1964-05-05
•
Expires: 1979-09-29
Abstract
No abstract record available.
Inventors
- 👤 Russell E Phelon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2786; H02K1/2787; H02K1/2789; H02K1/2791; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN ANNULUS FOR THE ROTOR OF AN ELECTRIC GENERATOR, WHICH ANNULUS HAS A LARGE CENTRAL OPENING AND COMPRISES IN COMBINATION: AN ANNULAR SERIES OF MAGNETIC MEMBERS WHICH SERIES INCLUDES AN ANNULAR ARRANGEMENT OF PERMANENT MAGNETS AND ALSO INCLUDES AN ANNULAR ARRANGEMENT OF POLE PIECES RESPECTIVELY ENGAGING THE MAGNETS AND LOCATED WITH THEIR INNER FACES AT LEAST APPROXIMATELY TANGENT TO A CENTRAL CYLINDRICAL SURFACE HAVING THE DIAMETER OF SAID LARGE CENTRAL OPENING, A CIRCULAR BAND SURROUNDING SAID MAGNETIC MEMBERS AND HAVING SUBSTANTIALLY UNIFORMLY SPACED ENGAGEMENT WITH SOME OF THEM, AND MEANS FOR APPLYING CONTINUAL PRESSURE TENDING TO MOVE SOME OF THE MAGNETIC MEMBERS AWAY FROM EACH OTHER IN A TANGENTIAL DIRECTION WITH A RESULTANT TENDENCY TO ENLARGE THE DIAMETER OF THE SERIES OF MAGNETIC MEMBERS AND THEREBY PRESS SOME OF SAID MEMBERS TIGHTLY AGAINST THE SURROUNDING BAND SO AS TO HOLD ALL ELEMENTS OF THE ANNULUS IN SUBSTANTIALLY FIXED RELATIONSHIP WITH EACH OTHER.
Claim 2
Dependent Claim
152 words
AN ANNULUS FOR THE ROTOR OF AN ELECTRIC GENERATOR, WHICH ANNULUS HAS A LARGE CENTRAL OPENING AND COMPRISES IN COMBINATION: AN ANNULAR SERIES OF MAGNETIC MEMBERS WHICH SERIES INCLUDES AN ANNULAR ARRANGEMENT OF PERMANENT MAGNETS AND ALSO INCLUDES AN ANNULAR ARRANGEMENT OF POLE PIECES RESPECTIVELY ENGAGING THE MAGNETS AND LOCATED WITH THEIR INNER FACES AT LEAST APPROXIMATELY TANGENT TO A CENTRAL CYLINDRICAL SURFACE HAVING THE DIAMETER OF SAID LARGE CENTRAL OPENING, A CIRCULAR BAND SURROUNDING SAID MAGNETIC MEMBERS AND HAVING SUBSTANTIALLY UNIFORMLY SPACED ENGAGEMENT WITH SOME OF THEM, AND MEANS FOR APPLYING CONTINUAL PRESSURE TENDING TO MOVE SOME OF THE MAGNETIC MEMBERS AWAY FROM EACH OTHER IN A TANGENTIAL DIRECTION WITH A RESULTANT TENDENCY TO ENLARGE THE DIAMETER OF THE SERIES OF MAGNETIC MEMBERS AND THEREBY PRESS SOME OF SAID MEMBERS TIGHTLY AGAINST THE SURROUNDING BAND SO AS TO HOLD ALL ELEMENTS OF THE ANNULUS IN SUBSTANTIALLY FIXED RELATIONSHIP WITH EACH OTHER.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |