US3201625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machines
Assignee: Westinghouse Electric Corp
•
Filing: 1961-03-30
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Granted: 1965-08-17
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Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 James E Smith
- 👤 Peter J Sweeny
- 👤 Richard M Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:00
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DYNAMOELECTRIC MACHINE HAVING A ROTATABLE ARMATURE AND A STATIONARY FIELD STRUCTURE, THE FIELD STRUCTURE HAVING A PLURALITY OF SALIENT POLE MEMBERS THEREON, EACH OF SAID POLE MEMBERS INCLUDING A PERMANENT MAGNET PORTION AND A POLE TIP PORTION ADJACENT THE ARMATURE, THE LONGITUDINAL SIDES OF SAID POLE TIP PORTION TAPERING INWARD TOWARD THE ARMATURE SO THAT THE WIDTH OF THE POLE TIP PORTION CIRCUMFERENTIALLY OF THE ARMATURE IS LESS THAN THE WIDTH OF THE PERMANENT MAGNET PORTION.
Claim 2
Dependent Claim
77 words
A DYNAMOELECTRIC MACHINE HAVING A ROTATABLE ARMATURE AND A STATIONARY FIELD STRUCTURE, THE FIELD STRUCTURE HAVING A PLURALITY OF SALIENT POLE MEMBERS THEREON, EACH OF SAID POLE MEMBERS INCLUDING A PERMANENT MAGNET PORTION AND A POLE TIP PORTION ADJACENT THE ARMATURE, THE LONGITUDINAL SIDES OF SAID POLE TIP PORTION TAPERING INWARD TOWARD THE ARMATURE SO THAT THE WIDTH OF THE POLE TIP PORTION CIRCUMFERENTIALLY OF THE ARMATURE IS LESS THAN THE WIDTH OF THE PERMANENT MAGNET PORTION.
References Cited (Backward Citations)
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Cited
GB216281A
Cited
US1962691A
Cited
US2482875A
Cited
US2556004A
Cited
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Cited
DE1015911B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |