Patent US3407320A successfully refreshed from Google Patents.
US3407320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wafer type submersible motor for underwater device
Assignee: Individual
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Filing: 1965-11-29
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Granted: 1968-10-22
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 William B Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:33
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; H02K21/00; H02K21/12; H02K21/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN AC MOTOR, COMPRISING A PLURALITY OF ELEMENTS IN SPACED STACKED RELATION, EACH SAID ELEMENTS INCLUDING A CENTRAL APERTURE AND STRUCTURE DEFINING A SINUSOIDAL ELECTRICAL PATH CIRCULARLY ABOUT SAID APERTURE FOR PRODUCING ALTERNATE POLARITY ELECTROMAGNETIC FIELDS IN OPPOSITION TO THE ELECTROMAGNETIC FIELDS IN ADJACENT SAID ELEMENTS, MEANS ELECTRICALLY CONNECTING SAID DISCS IN SERIES, AND ROTOR MEANS INCLUDING A ROTATABLY MOUNTED SHAFT EXTENDING THROUGH SAID APERTURE OF EACH SAID ELEMENTS, SAID ROTOR MEANS INCLUDING PERMANENTLY MAGNETIZED ELEMENTS MOUNTED ON SAID SHAFT AT INTERVALS RESPONSIVE TO THE ROTATIVE INFLUENCE OF SAID ELECTROMAGNETIC FIELDS OF SAID ELEMENTS.
Claim 2
Dependent Claim
94 words
AN AC MOTOR, COMPRISING A PLURALITY OF ELEMENTS IN SPACED STACKED RELATION, EACH SAID ELEMENTS INCLUDING A CENTRAL APERTURE AND STRUCTURE DEFINING A SINUSOIDAL ELECTRICAL PATH CIRCULARLY ABOUT SAID APERTURE FOR PRODUCING ALTERNATE POLARITY ELECTROMAGNETIC FIELDS IN OPPOSITION TO THE ELECTROMAGNETIC FIELDS IN ADJACENT SAID ELEMENTS, MEANS ELECTRICALLY CONNECTING SAID DISCS IN SERIES, AND ROTOR MEANS INCLUDING A ROTATABLY MOUNTED SHAFT EXTENDING THROUGH SAID APERTURE OF EACH SAID ELEMENTS, SAID ROTOR MEANS INCLUDING PERMANENTLY MAGNETIZED ELEMENTS MOUNTED ON SAID SHAFT AT INTERVALS RESPONSIVE TO THE ROTATIVE INFLUENCE OF SAID ELECTROMAGNETIC FIELDS OF SAID ELEMENTS.
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |