US3253170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quiet flux-switch alternator
Assignee: Curtiss Wright Corp
•
Filing: 1963-02-12
•
Granted: 1966-05-24
•
Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Graham R Phillips
- 👤 Henderson John
- 👤 John C Andreas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A QUIET MULTI-POLE ALTERNATOR OF THE FLUX-SWITCH TYPE COMPRISING A STATOR RING HAVING TEETH SPACED ALONG ITS INNER PERIPHERY, SAID STATOR RING CARRYING FIELD AND POWER WINDINGS IN THE SLOTS FORMED BETWEEN SAID TEETH, A COACTING ROTOR DISPOSED WITHIN SAID STATOR RING AND HAVING TEETH IN NUMBER HALF THE NUMBER OF STATOR TEETH, A ROTOR SHAFT HAVING TWO MAIN BEARINGS, A SUPPORT BRACKET FOR EACH BEARING IN VERTICAL ALIGNMENT THEREWITH AT OPPOSITE SIDES OF SAID ROTOR MEANS FOR AXIALLY AND RADIALLY DAMPING EACH BEARING WITH RESPECT TO ITS BRACKET, AND MEANS FOR CLAMPPING SAID STATOR RING BETWEEN SAID BRACKETS, ONE OF SAID BRACKETS HAVING A FIXED DAMPED MOUNTING SUPPORT AND THE OTHER BRACKET BEING SUPPORTED ONLY BY THE STATOR RING AND FIXED BRACKET IN CANTILEVER MANNER.
Claim 2
Dependent Claim
126 words
A QUIET MULTI-POLE ALTERNATOR OF THE FLUX-SWITCH TYPE COMPRISING A STATOR RING HAVING TEETH SPACED ALONG ITS INNER PERIPHERY, SAID STATOR RING CARRYING FIELD AND POWER WINDINGS IN THE SLOTS FORMED BETWEEN SAID TEETH, A COACTING ROTOR DISPOSED WITHIN SAID STATOR RING AND HAVING TEETH IN NUMBER HALF THE NUMBER OF STATOR TEETH, A ROTOR SHAFT HAVING TWO MAIN BEARINGS, A SUPPORT BRACKET FOR EACH BEARING IN VERTICAL ALIGNMENT THEREWITH AT OPPOSITE SIDES OF SAID ROTOR MEANS FOR AXIALLY AND RADIALLY DAMPING EACH BEARING WITH RESPECT TO ITS BRACKET, AND MEANS FOR CLAMPPING SAID STATOR RING BETWEEN SAID BRACKETS, ONE OF SAID BRACKETS HAVING A FIXED DAMPED MOUNTING SUPPORT AND THE OTHER BRACKET BEING SUPPORTED ONLY BY THE STATOR RING AND FIXED BRACKET IN CANTILEVER MANNER.
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |