Patent US3293729A successfully refreshed from Google Patents.
US3293729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a dynamoelectric machine
Assignee: Individual
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Filing: 1962-07-25
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Granted: 1966-12-27
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Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Wayne J Morrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:58
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F41/024; H01F27/00; H01F27/33; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49073; Y10T29/49075; Y10T29/49078; Y10T29/49636; Y10T29/49696; Y10T29/49826; Y10T29/49833; Y10T29/49908; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
THE METHOD OF MAKING A DYNAMOELECTRIC MACHINE HAVING A COMBINED MAGNETIC YOKE AND HOUSING MEMBER COMPRISING THE STEPS OF: FORMING A BLANK OF AT LEAST TWO SUPERPOSED, ABUTTING, UNBONDED SHEETS OF RELATIVELY THIN MAGNETIC MATERIAL; UNITARY DRAWING SAID BLANK INTO A CUP-SHAPED MEMBER HAVING SIDE AND BOTTOM WALLS DEFINING A CAVITY THEREBY TO RENDER AN UNBOUNDED PRESS FIT BETWEEN THE THUS DEFORMED SHEETS; SECURING AN ELONGATED BEARING TO SAID BOTTOM WALL, SAID BEARING EXTENDING INTO SAID CAVITY; FORMING A LAMINATED OF RELATIVELY THIN AT LEAST TWO SUPERPOSED, LAMINATIONS OR RELATIVELY THIN MAGNETIC MATERIAL WITH A CENTRAL BORE AND SPACED ENDS COMFORMING TO THE INTERIOR SURFACE OF SAID SIDE WALLS; ASSEMBLING AT LEAST ONE FIELD COIL ON SAID POLE PIECE MEMBER; PRESSING SAID POLE PIECE MEMBER WITH SAID COIL THEREON ENTIRELY INTO SAID CUP-SHAPED MEMBER CAVITY TO EXTEND ACROSS THE SAME END SPACED FROM SAID BOTTOM WALL WITH SAID ENDS INTIMATELY ENGAGING SAID SIDE WALL AND WITH SAID BORE CONCENTRIC WITH SAID BEARING WHEREBY SAID CUPSHAPED MEMBER FORMS A COMBINED HOUSING AND MAGNETIC YOKE FOR SAID POLE PIECE MEMBER; PROVIDING A ROTOR MEMEMB HAVING A SHAFT; AND POSITIONING SAID SHAFT IN SAID BEARING WITH SAID ROTOR MEMBER POSITIONED IN SAID BORE.
Claim 2
Independent Claim
200 words
THE METHOD OF MAKING A DYNAMOELECTRIC MACHINE HAVING A COMBINED MAGNETIC YOKE AND HOUSING MEMBER COMPRISING THE STEPS OF: FORMING A BLANK OF AT LEAST TWO SUPERPOSED, ABUTTING, UNBONDED SHEETS OF RELATIVELY THIN MAGNETIC MATERIAL; UNITARY DRAWING SAID BLANK INTO A CUP-SHAPED MEMBER HAVING SIDE AND BOTTOM WALLS DEFINING A CAVITY THEREBY TO RENDER AN UNBOUNDED PRESS FIT BETWEEN THE THUS DEFORMED SHEETS; SECURING AN ELONGATED BEARING TO SAID BOTTOM WALL, SAID BEARING EXTENDING INTO SAID CAVITY; FORMING A LAMINATED OF RELATIVELY THIN AT LEAST TWO SUPERPOSED, LAMINATIONS OR RELATIVELY THIN MAGNETIC MATERIAL WITH A CENTRAL BORE AND SPACED ENDS COMFORMING TO THE INTERIOR SURFACE OF SAID SIDE WALLS; ASSEMBLING AT LEAST ONE FIELD COIL ON SAID POLE PIECE MEMBER; PRESSING SAID POLE PIECE MEMBER WITH SAID COIL THEREON ENTIRELY INTO SAID CUP-SHAPED MEMBER CAVITY TO EXTEND ACROSS THE SAME END SPACED FROM SAID BOTTOM WALL WITH SAID ENDS INTIMATELY ENGAGING SAID SIDE WALL AND WITH SAID BORE CONCENTRIC WITH SAID BEARING WHEREBY SAID CUPSHAPED MEMBER FORMS A COMBINED HOUSING AND MAGNETIC YOKE FOR SAID POLE PIECE MEMBER; PROVIDING A ROTOR MEMEMB HAVING A SHAFT; AND POSITIONING SAID SHAFT IN SAID BEARING WITH SAID ROTOR MEMBER POSITIONED IN SAID BORE.
References Cited (Backward Citations)
US2007398A
Cited
US2490021A
Cited
US2531518A
Cited
US2653117A
Cited
US2701318A
Cited
US3042428A
Cited
US3002263A
Cited
US2811659A
Cited
US2929946A
Cited
US3096568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |