Patent US3239701A successfully refreshed from Google Patents.
US3239701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brushless oil cooled motor
Assignee: Motors Liquidation Co
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Filing: 1962-09-14
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Granted: 1966-03-08
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Robert W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:30
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/19; H02K11/00; H02K11/04; H02K11/049; H02K11/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DYNAMOELECTRIC MACHINE COMPRISING, HOUSING MEANS DEFINING FIRST AND SECOND CHAMBERS, AN EXCITER GENERATOR AND A MAIN GENERATOR LOCATED IN SAID FIRST CHAMBER, A SHAFT ROTATABLE IN SAID FIRST CHAMBER SUPPORTING AN OUTPUT WINDING FOR SAID EXCITER GENERATOR AND A FIELD WINDING FOR SAID MAIN GENERATOR, A PLURALITY OF FIRST SEMI-CONDUCTOR DIODES ELECTRICALLY CONNECTING THE OUTPUT WINDING OF SAID EXCITER GENERATOR WITH THE FIELD WINDING OF SAID MAIN GENERATOR, A PLURALITY OF SECOND SEMICONDUCTOR DIODES LOCATED IN SAID SECOND CHAMBER, MEANS ELECTRICALLY CONNECTING THE OUTPUT WINDING OF SAID MAIN GENERATOR WITH SAID SECOND DIODES, AN INLET FOR COOLING A MEDIUM FOR SAID DYNAMOELECTRIC MACHINE COMMUNICATING WITH SAID SECOND CHAMBER, FIRST AND SECOND NOZZLE MEANS LOCATED IN SAID FIRST CHAMBER FOR DIRECTING A FLOW OF COOLING MEDIUM
Claim 2
Dependent Claim
126 words
A DYNAMOELECTRIC MACHINE COMPRISING, HOUSING MEANS DEFINING FIRST AND SECOND CHAMBERS, AN EXCITER GENERATOR AND A MAIN GENERATOR LOCATED IN SAID FIRST CHAMBER, A SHAFT ROTATABLE IN SAID FIRST CHAMBER SUPPORTING AN OUTPUT WINDING FOR SAID EXCITER GENERATOR AND A FIELD WINDING FOR SAID MAIN GENERATOR, A PLURALITY OF FIRST SEMI-CONDUCTOR DIODES ELECTRICALLY CONNECTING THE OUTPUT WINDING OF SAID EXCITER GENERATOR WITH THE FIELD WINDING OF SAID MAIN GENERATOR, A PLURALITY OF SECOND SEMICONDUCTOR DIODES LOCATED IN SAID SECOND CHAMBER, MEANS ELECTRICALLY CONNECTING THE OUTPUT WINDING OF SAID MAIN GENERATOR WITH SAID SECOND DIODES, AN INLET FOR COOLING A MEDIUM FOR SAID DYNAMOELECTRIC MACHINE COMMUNICATING WITH SAID SECOND CHAMBER, FIRST AND SECOND NOZZLE MEANS LOCATED IN SAID FIRST CHAMBER FOR DIRECTING A FLOW OF COOLING MEDIUM
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |