Patent US3092743A successfully refreshed from Google Patents.
US3092743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A. c. motor
Assignee: Giannini Controls Corp
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Filing: 1959-12-17
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Granted: 1963-06-04
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Damon Van Utt
- 👤 Howard J Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:48
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/02; H02K19/10; H02K19/103; Y; Y10; Y10S; Y10S310/00; Y10S310/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN ELECTRIC MOTOR COMPRISING A PAIR OF OPPOSED CYLINDRICAL MAGNETIC FIELD ASSEMBLIES, EACH OF SAID ASSEMBLIES INCLUDING AN AXIAL HUB, A PAIR OF POLE PIECES SECURED TO OPPOSITE END PORTIONS RESPECTIVELY OF THE HUB, EACH POLE PIECE BEING IN THE GENERAL SHAPE OF A CUP AND HAVING POLES FORMING THE CYLINDRICAL PORTION OF THE CUP AND PROJECTING FROM THE BASE OF THE CUP TOWARD THE OPPOSING FIELD ASSEMBLY, AND A COIL MOUNTED ON THE HUB AND LOCATED WITHIN ONE OF THE CUP-SHAPED POLE PIECES, THE PROJECTING POLES OF EACH ASSEMBLY EXTENDING BETWEEN AND IN SPACED RELATION TO THE PROJECTING POLES OF THE OTHER ASSEMBLY AND DEFINING A POLAR SPACE BETWEEN THE ASSEMBLIES, A MAGNETIC ROTOR DISPOSED FOR ROTATION WITHIN SAID POLAR SPACE, A NON-MAGNETIC TUBULAR SHELL CLOSELY SURROUNDING BOTH FIELD ASSEMBLIES AND BEARING AGAINST THE POLES THEREOF, AND NON-MAGNETIC SPACER MEANS INCLUDING TEETH DISPOSED BETWEEN ADJACENT POLES OF THE ASSEMBLIES TO MAINTAIN MAGNETIC GAPS BETWEEN SAID ASSEMBLIES.
Claim 2
Dependent Claim
157 words
AN ELECTRIC MOTOR COMPRISING A PAIR OF OPPOSED CYLINDRICAL MAGNETIC FIELD ASSEMBLIES, EACH OF SAID ASSEMBLIES INCLUDING AN AXIAL HUB, A PAIR OF POLE PIECES SECURED TO OPPOSITE END PORTIONS RESPECTIVELY OF THE HUB, EACH POLE PIECE BEING IN THE GENERAL SHAPE OF A CUP AND HAVING POLES FORMING THE CYLINDRICAL PORTION OF THE CUP AND PROJECTING FROM THE BASE OF THE CUP TOWARD THE OPPOSING FIELD ASSEMBLY, AND A COIL MOUNTED ON THE HUB AND LOCATED WITHIN ONE OF THE CUP-SHAPED POLE PIECES, THE PROJECTING POLES OF EACH ASSEMBLY EXTENDING BETWEEN AND IN SPACED RELATION TO THE PROJECTING POLES OF THE OTHER ASSEMBLY AND DEFINING A POLAR SPACE BETWEEN THE ASSEMBLIES, A MAGNETIC ROTOR DISPOSED FOR ROTATION WITHIN SAID POLAR SPACE, A NON-MAGNETIC TUBULAR SHELL CLOSELY SURROUNDING BOTH FIELD ASSEMBLIES AND BEARING AGAINST THE POLES THEREOF, AND NON-MAGNETIC SPACER MEANS INCLUDING TEETH DISPOSED BETWEEN ADJACENT POLES OF THE ASSEMBLIES TO MAINTAIN MAGNETIC GAPS BETWEEN SAID ASSEMBLIES.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |