Patent US2717731A successfully refreshed from Google Patents.
Patent US3303410A successfully refreshed from Google Patents.
US3303410A
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Rotating rectifier exciter ground detection arrangement
Assignee: Westinghouse Electric Corp
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Filing: 1964-02-07
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Granted: 1967-02-07
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Dillon B Hoover
- 👤 Bernard B Winer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:25
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/36; H02K19/365; G; G01; G01R; G01R31/00; G01R31/34; G01R31/343; H02H; H02H7/00; H02H7/08; H02H7/0805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A ROTATING RECTIFIER EXCITER, A GROUND DETECTION ARRANGEMENT COMPRISING AT LEAST ONE COLLECTOR RING DISPOSED IN RIGID AND ELECTRICALLY INSULATIVE SUPPORTING RELATION ON SHAFT MEANS OF SAID RECTIFIER EXCITER, CONDUCTOR MEANS ELECTRICALLY CONNECTING SAID RING TO A PREDETERMINED CIRCUIT POINT IN ROTATING EXCITATION CIRCUIT MEANS OF SAID RECTIFIER EXCITER, BRUSH ASSEMBLY MEANS HAVING A NORMALLY RETRACTED BRUSH ACTUABLE TO CONTACT SAID RING, MEANS FOR CONTACTING AN ELECTRICALLY COMMON GROUND IN SAID RECTIFIER EXCITER, AND MEANS FOR CONTROLLING THE POSITION OF SAID BRUSH AND FOR ELECTRICALLY METERING ACROSS SAID WINDING MEANS CIRCUIT POINT AND SAID GROUND POINT WHEN SAID BRUSH IS ADVANCED TO CONTACT SAID RING.
Claim 2
Dependent Claim
106 words
IN A ROTATING RECTIFIER EXCITER, A GROUND DETECTION ARRANGEMENT COMPRISING AT LEAST ONE COLLECTOR RING DISPOSED IN RIGID AND ELECTRICALLY INSULATIVE SUPPORTING RELATION ON SHAFT MEANS OF SAID RECTIFIER EXCITER, CONDUCTOR MEANS ELECTRICALLY CONNECTING SAID RING TO A PREDETERMINED CIRCUIT POINT IN ROTATING EXCITATION CIRCUIT MEANS OF SAID RECTIFIER EXCITER, BRUSH ASSEMBLY MEANS HAVING A NORMALLY RETRACTED BRUSH ACTUABLE TO CONTACT SAID RING, MEANS FOR CONTACTING AN ELECTRICALLY COMMON GROUND IN SAID RECTIFIER EXCITER, AND MEANS FOR CONTROLLING THE POSITION OF SAID BRUSH AND FOR ELECTRICALLY METERING ACROSS SAID WINDING MEANS CIRCUIT POINT AND SAID GROUND POINT WHEN SAID BRUSH IS ADVANCED TO CONTACT SAID RING.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |