Patent US3114852A successfully refreshed from Google Patents.
US3114852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor with adjustable field structure
Assignee: Singer Co
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Filing: 1960-11-28
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Granted: 1963-12-17
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Albert N Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:43
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
AN ELECTRIC MOTOR COMPRISING IN COMBINATION A FRAME; A BEARING SUPPORTED BY SAID FRAME; AT LEAST ONE BRUSH ALSO SUPPORTED BY SAID FRAME; A MACHINED CYLINDRICAL SURFACE FORMED ON SAID FRAME; THREE EQUALLY SPACED LUGS FORMED ON SAID FRAME, SAID LUGS HAVING ARCUATELY ELONGATED APERTURES; AN END BELL; A BEARING SUPPORTED BY SAID END BELL; MEANS FOR SECURING SAID END BELL TO SAID FRAME; AN ARMATURE ROTATABLY CARRIED BY SAID BEARINGS; A MAGNETIC FIELD STRUCTURE SURROUNDING SAID ARMATURE; THREE APERTURED EQUALLY SPACED LUGS FORMED ON SAID MAGNETIC FIELD STRUCTURE, THE APERTURES OF SAID LUGS BEING THREADED; THREE EQUALLY SPACED POSITIONING FINGERS FORMED ON SAID MAG-
Claim 2
Dependent Claim
105 words
AN ELECTRIC MOTOR COMPRISING IN COMBINATION A FRAME; A BEARING SUPPORTED BY SAID FRAME; AT LEAST ONE BRUSH ALSO SUPPORTED BY SAID FRAME; A MACHINED CYLINDRICAL SURFACE FORMED ON SAID FRAME; THREE EQUALLY SPACED LUGS FORMED ON SAID FRAME, SAID LUGS HAVING ARCUATELY ELONGATED APERTURES; AN END BELL; A BEARING SUPPORTED BY SAID END BELL; MEANS FOR SECURING SAID END BELL TO SAID FRAME; AN ARMATURE ROTATABLY CARRIED BY SAID BEARINGS; A MAGNETIC FIELD STRUCTURE SURROUNDING SAID ARMATURE; THREE APERTURED EQUALLY SPACED LUGS FORMED ON SAID MAGNETIC FIELD STRUCTURE, THE APERTURES OF SAID LUGS BEING THREADED; THREE EQUALLY SPACED POSITIONING FINGERS FORMED ON SAID MAG-
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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |